AyeCode / invoicing

includes/wpinv-helper-functions.php

Spacing +255 added lines, -255 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
  
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Are we supporting item quantities?
@@ -20,35 +20,35 @@ 
  */
 function wpinv_get_ip() {
 
-    if ( isset( $_SERVER['HTTP_X_REAL_IP'] ) ) {
-        return sanitize_text_field( wp_unslash( $_SERVER['HTTP_X_REAL_IP'] ) );
+    if (isset($_SERVER['HTTP_X_REAL_IP'])) {
+        return sanitize_text_field(wp_unslash($_SERVER['HTTP_X_REAL_IP']));
     }
 
-    if ( isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
+    if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
         // Proxy servers can send through this header like this: X-Forwarded-For: client1, proxy1, proxy2
         // Make sure we always only send through the first IP in the list which should always be the client IP.
-        return (string) rest_is_ip_address( trim( current( preg_split( '/,/', sanitize_text_field( wp_unslash( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) ) ) ) );
+        return (string) rest_is_ip_address(trim(current(preg_split('/,/', sanitize_text_field(wp_unslash($_SERVER['HTTP_X_FORWARDED_FOR']))))));
     }
 
-    if ( isset( $_SERVER['HTTP_CLIENT_IP'] ) ) {
-        return sanitize_text_field( wp_unslash( $_SERVER['HTTP_CLIENT_IP'] ) );
+    if (isset($_SERVER['HTTP_CLIENT_IP'])) {
+        return sanitize_text_field(wp_unslash($_SERVER['HTTP_CLIENT_IP']));
     }
 
-    if ( isset( $_SERVER['REMOTE_ADDR'] ) ) {
-        return sanitize_text_field( wp_unslash( $_SERVER['REMOTE_ADDR'] ) );
+    if (isset($_SERVER['REMOTE_ADDR'])) {
+        return sanitize_text_field(wp_unslash($_SERVER['REMOTE_ADDR']));
     }
 
     return '';
 }
 
 function wpinv_get_user_agent() {
-    if ( ! empty( $_SERVER['HTTP_USER_AGENT'] ) ) {
-        $user_agent = sanitize_text_field( $_SERVER['HTTP_USER_AGENT'] );
+    if (!empty($_SERVER['HTTP_USER_AGENT'])) {
+        $user_agent = sanitize_text_field($_SERVER['HTTP_USER_AGENT']);
     } else {
         $user_agent = '';
     }
 
-    return apply_filters( 'wpinv_get_user_agent', $user_agent );
+    return apply_filters('wpinv_get_user_agent', $user_agent);
 }
 
 /**
@@ -56,27 +56,27 @@ 
  * 
  * @param string $amount The amount to sanitize.
  */
-function wpinv_sanitize_amount( $amount ) {
+function wpinv_sanitize_amount($amount) {
 
     // Format decimals.
-    $amount = str_replace( wpinv_decimal_separator(), '.', $amount );
+    $amount = str_replace(wpinv_decimal_separator(), '.', $amount);
 
     // Remove thousands.
-    $amount = str_replace( wpinv_thousands_separator(), '', $amount );
+    $amount = str_replace(wpinv_thousands_separator(), '', $amount);
 
     // Cast the remaining to a float.
-    return (float) preg_replace( '/[^0-9\.\-]/', '', $amount );
+    return (float) preg_replace('/[^0-9\.\-]/', '', $amount);
 
 }
 
-function wpinv_round_amount( $amount, $decimals = NULL ) {
-    if ( $decimals === NULL ) {
+function wpinv_round_amount($amount, $decimals = NULL) {
+    if ($decimals === NULL) {
         $decimals = wpinv_decimals();
     }
     
-    $amount = round( (double)$amount, wpinv_currency_decimal_filter( absint( $decimals ) ) );
+    $amount = round((double) $amount, wpinv_currency_decimal_filter(absint($decimals)));
 
-    return apply_filters( 'wpinv_round_amount', $amount, $decimals );
+    return apply_filters('wpinv_round_amount', $amount, $decimals);
 }
 
 /**
@@ -88,32 +88,32 @@ 
  * @param string|WPInv_Invoice $invoice The invoice object|post type|type
  * @return array
  */
-function wpinv_get_invoice_statuses( $draft = false, $trashed = false, $invoice = false ) {
+function wpinv_get_invoice_statuses($draft = false, $trashed = false, $invoice = false) {
 
 	$invoice_statuses = array(
-		'wpi-pending'    => _x( 'Pending payment', 'Invoice status', 'invoicing' ),
-        'publish'        => _x( 'Paid', 'Invoice status', 'invoicing' ),
-        'wpi-processing' => _x( 'Processing', 'Invoice status', 'invoicing' ),
-		'wpi-onhold'     => _x( 'On hold', 'Invoice status', 'invoicing' ),
-		'wpi-cancelled'  => _x( 'Cancelled', 'Invoice status', 'invoicing' ),
-		'wpi-refunded'   => _x( 'Refunded', 'Invoice status', 'invoicing' ),
-        'wpi-failed'     => _x( 'Failed', 'Invoice status', 'invoicing' ),
-        'wpi-renewal'    => _x( 'Renewal Payment', 'Invoice status', 'invoicing' ),
+		'wpi-pending'    => _x('Pending payment', 'Invoice status', 'invoicing'),
+        'publish'        => _x('Paid', 'Invoice status', 'invoicing'),
+        'wpi-processing' => _x('Processing', 'Invoice status', 'invoicing'),
+		'wpi-onhold'     => _x('On hold', 'Invoice status', 'invoicing'),
+		'wpi-cancelled'  => _x('Cancelled', 'Invoice status', 'invoicing'),
+		'wpi-refunded'   => _x('Refunded', 'Invoice status', 'invoicing'),
+        'wpi-failed'     => _x('Failed', 'Invoice status', 'invoicing'),
+        'wpi-renewal'    => _x('Renewal Payment', 'Invoice status', 'invoicing'),
     );
 
-    if ( $draft ) {
-        $invoice_statuses['draft'] = __( 'Draft', 'invoicing' );
+    if ($draft) {
+        $invoice_statuses['draft'] = __('Draft', 'invoicing');
     }
 
-    if ( $trashed ) {
-        $invoice_statuses['trash'] = __( 'Trash', 'invoicing' );
+    if ($trashed) {
+        $invoice_statuses['trash'] = __('Trash', 'invoicing');
     }
 
-    if ( $invoice instanceof WPInv_Invoice ) {
+    if ($invoice instanceof WPInv_Invoice) {
         $invoice = $invoice->get_post_type();
     }
 
-	return apply_filters( 'wpinv_statuses', $invoice_statuses, $invoice );
+	return apply_filters('wpinv_statuses', $invoice_statuses, $invoice);
 }
 
 /**
@@ -122,11 +122,11 @@ 
  * @param string $status The raw status
  * @param string|WPInv_Invoice $invoice The invoice object|post type|type
  */
-function wpinv_status_nicename( $status, $invoice = false ) {
-    $statuses = wpinv_get_invoice_statuses( true, true, $invoice );
-    $status   = isset( $statuses[$status] ) ? $statuses[$status] : $status;
+function wpinv_status_nicename($status, $invoice = false) {
+    $statuses = wpinv_get_invoice_statuses(true, true, $invoice);
+    $status   = isset($statuses[$status]) ? $statuses[$status] : $status;
 
-    return sanitize_text_field( $status );
+    return sanitize_text_field($status);
 }
 
 /**
@@ -134,13 +134,13 @@ 
  * 
  * @param string $current
  */
-function wpinv_get_currency( $current = '' ) {
+function wpinv_get_currency($current = '') {
 
-    if ( empty( $current ) ) {
-        $current = apply_filters( 'wpinv_currency', wpinv_get_option( 'currency', 'USD' ) );
+    if (empty($current)) {
+        $current = apply_filters('wpinv_currency', wpinv_get_option('currency', 'USD'));
     }
 
-    return trim( strtoupper( $current ) );
+    return trim(strtoupper($current));
 }
 
 /**
@@ -148,25 +148,25 @@ 
  * 
  * @param string|null $currency The currency code. Defaults to the default currency.
  */
-function wpinv_currency_symbol( $currency = null ) {
+function wpinv_currency_symbol($currency = null) {
 
     // Prepare the currency.
-    $currency = empty( $currency ) ? wpinv_get_currency() : wpinv_clean( $currency );
+    $currency = empty($currency) ? wpinv_get_currency() : wpinv_clean($currency);
 
     // Fetch all symbols.
     $symbols = wpinv_get_currency_symbols();
 
     // Fetch this currencies symbol.
-    $currency_symbol = isset( $symbols[$currency] ) ? $symbols[$currency] : $currency;
+    $currency_symbol = isset($symbols[$currency]) ? $symbols[$currency] : $currency;
 
     // Filter the symbol.
-    return apply_filters( 'wpinv_currency_symbol', $currency_symbol, $currency );
+    return apply_filters('wpinv_currency_symbol', $currency_symbol, $currency);
 }
 
 function wpinv_currency_position() {
-    $position = wpinv_get_option( 'currency_position', 'left' );
+    $position = wpinv_get_option('currency_position', 'left');
     
-    return apply_filters( 'wpinv_currency_position', $position );
+    return apply_filters('wpinv_currency_position', $position);
 }
 
 /**
@@ -174,13 +174,13 @@ 
  * 
  * @param $string|null $current
  */
-function wpinv_thousands_separator( $current = null ) {
+function wpinv_thousands_separator($current = null) {
 
-    if ( null == $current ) {
-        $current = wpinv_get_option( 'thousands_separator', '.' );
+    if (null == $current) {
+        $current = wpinv_get_option('thousands_separator', '.');
     }
 
-    return trim( $current );
+    return trim($current);
 }
 
 /**
@@ -188,13 +188,13 @@ 
  * 
  * @param $string|null $current
  */
-function wpinv_decimal_separator( $current = null ) {
+function wpinv_decimal_separator($current = null) {
 
-    if ( null == $current ) {
-        $current = wpinv_get_option( 'decimal_separator', '.' );
+    if (null == $current) {
+        $current = wpinv_get_option('decimal_separator', '.');
     }
     
-    return trim( $current );
+    return trim($current);
 }
 
 /**
@@ -202,27 +202,27 @@ 
  * 
  * @param $string|null $current
  */
-function wpinv_decimals( $current = null ) {
+function wpinv_decimals($current = null) {
 
-    if ( null == $current ) {
-        $current = wpinv_get_option( 'decimals', 2 );
+    if (null == $current) {
+        $current = wpinv_get_option('decimals', 2);
     }
     
-    return absint( $current );
+    return absint($current);
 }
 
 /**
  * Retrieves a list of all supported currencies.
  */
 function wpinv_get_currencies() {
-    return apply_filters( 'wpinv_currencies', wpinv_get_data( 'currencies' ) );
+    return apply_filters('wpinv_currencies', wpinv_get_data('currencies'));
 }
 
 /**
  * Retrieves a list of all currency symbols.
  */
 function wpinv_get_currency_symbols() {
-    return apply_filters( 'wpinv_currency_symbols', wpinv_get_data( 'currency-symbols' ) );
+    return apply_filters('wpinv_currency_symbols', wpinv_get_data('currency-symbols'));
 }
 
 /**
@@ -234,7 +234,7 @@ 
 	$currency_pos = wpinv_currency_position();
 	$format       = '%1$s%2$s';
 
-	switch ( $currency_pos ) {
+	switch ($currency_pos) {
 		case 'left':
 			$format = '%1$s%2$s';
 			break;
@@ -249,7 +249,7 @@ 
 			break;
 	}
 
-	return apply_filters( 'getpaid_price_format', $format, $currency_pos );
+	return apply_filters('getpaid_price_format', $format, $currency_pos);
 }
 
 /**
@@ -259,25 +259,25 @@ 
  * @param  string $currency Currency.
  * @return string
  */
-function wpinv_price( $amount = 0, $currency = '' ) {
+function wpinv_price($amount = 0, $currency = '') {
 
     // Backwards compatibility.
-    $amount             = floatval( wpinv_sanitize_amount( $amount ) );
+    $amount             = floatval(wpinv_sanitize_amount($amount));
 
     // Prepare variables.
-    $currency           = wpinv_get_currency( $currency );
+    $currency           = wpinv_get_currency($currency);
     $amount             = (float) $amount;
     $unformatted_amount = $amount;
     $negative           = $amount < 0;
-    $amount             = apply_filters( 'getpaid_raw_amount', floatval( $negative ? $amount * -1 : $amount ) );
-    $amount             = wpinv_format_amount( $amount );
+    $amount             = apply_filters('getpaid_raw_amount', floatval($negative ? $amount * -1 : $amount));
+    $amount             = wpinv_format_amount($amount);
 
     // Format the amount.
     $format             = getpaid_get_price_format();
-    $formatted_amount   = ( $negative ? '-' : '' ) . sprintf( $format, '<span class="getpaid-currency__symbol">' . wpinv_currency_symbol( $currency ) . '</span>', $amount );
+    $formatted_amount   = ($negative ? '-' : '') . sprintf($format, '<span class="getpaid-currency__symbol">' . wpinv_currency_symbol($currency) . '</span>', $amount);
 
     // Filter the formatting.
-    return apply_filters( 'wpinv_price', $formatted_amount, $amount, $currency, $unformatted_amount );
+    return apply_filters('wpinv_price', $formatted_amount, $amount, $currency, $unformatted_amount);
 }
 
 /**
@@ -288,33 +288,33 @@ 
  * @param  bool     $calculate Whether or not to apply separators.
  * @return string
  */
-function wpinv_format_amount( $amount, $decimals = null, $calculate = false ) {
+function wpinv_format_amount($amount, $decimals = null, $calculate = false) {
     $thousands_sep = wpinv_thousands_separator();
     $decimal_sep   = wpinv_decimal_separator();
-    $decimals      = wpinv_decimals( $decimals );
+    $decimals      = wpinv_decimals($decimals);
 
     // Format decimals.
-    $amount = str_replace( $decimal_sep, '.', $amount );
+    $amount = str_replace($decimal_sep, '.', $amount);
 
     // Remove thousands.
-    $amount = str_replace( $thousands_sep, '', $amount );
+    $amount = str_replace($thousands_sep, '', $amount);
 
     // Cast the remaining to a float.
-    $amount = floatval( $amount );
+    $amount = floatval($amount);
 
-    if ( $calculate ) {
+    if ($calculate) {
         return $amount;
     }
 
     // Fomart the amount.
-    return number_format( $amount, $decimals, $decimal_sep, $thousands_sep );
+    return number_format($amount, $decimals, $decimal_sep, $thousands_sep);
 }
 
-function wpinv_sanitize_key( $key ) {
+function wpinv_sanitize_key($key) {
     $raw_key = $key;
-    $key = preg_replace( '/[^a-zA-Z0-9_\-\.\:\/]/', '', $key );
+    $key = preg_replace('/[^a-zA-Z0-9_\-\.\:\/]/', '', $key);
 
-    return apply_filters( 'wpinv_sanitize_key', $key, $raw_key );
+    return apply_filters('wpinv_sanitize_key', $key, $raw_key);
 }
 
 /**
@@ -322,8 +322,8 @@ 
  * 
  * @param $str the file whose extension should be retrieved.
  */
-function wpinv_get_file_extension( $str ) {
-    $filetype = wp_check_filetype( $str );
+function wpinv_get_file_extension($str) {
+    $filetype = wp_check_filetype($str);
     return $filetype['ext'];
 }
 
@@ -332,16 +332,16 @@ 
  * 
  * @param string $string
  */
-function wpinv_string_is_image_url( $string ) {
-    $extension = strtolower( wpinv_get_file_extension( $string ) );
-    return in_array( $extension, array( 'jpeg', 'jpg', 'png', 'gif', 'ico' ), true );
+function wpinv_string_is_image_url($string) {
+    $extension = strtolower(wpinv_get_file_extension($string));
+    return in_array($extension, array('jpeg', 'jpg', 'png', 'gif', 'ico'), true);
 }
 
 /**
  * Returns the current URL.
  */
 function wpinv_get_current_page_url() {
-    return ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
+    return (is_ssl() ? 'https://' : 'http://') . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
 }
 
 /**
@@ -351,46 +351,46 @@ 
  * @param string $name  Constant name.
  * @param mixed  $value Value.
  */
-function getpaid_maybe_define_constant( $name, $value ) {
-	if ( ! defined( $name ) ) {
-		define( $name, $value );
+function getpaid_maybe_define_constant($name, $value) {
+	if (!defined($name)) {
+		define($name, $value);
 	}
 }
 
 function wpinv_get_php_arg_separator_output() {
-	return ini_get( 'arg_separator.output' );
+	return ini_get('arg_separator.output');
 }
 
-function wpinv_rgb_from_hex( $color ) {
-    $color = str_replace( '#', '', $color );
+function wpinv_rgb_from_hex($color) {
+    $color = str_replace('#', '', $color);
 
     // Convert shorthand colors to full format, e.g. "FFF" -> "FFFFFF"
-    $color = preg_replace( '~^(.)(.)(.)$~', '$1$1$2$2$3$3', $color );
-    if ( empty( $color ) ) {
+    $color = preg_replace('~^(.)(.)(.)$~', '$1$1$2$2$3$3', $color);
+    if (empty($color)) {
         return NULL;
     }
 
-    $color = str_split( $color );
+    $color = str_split($color);
 
     $rgb      = array();
-    $rgb['R'] = hexdec( $color[0] . $color[1] );
-    $rgb['G'] = hexdec( $color[2] . $color[3] );
-    $rgb['B'] = hexdec( $color[4] . $color[5] );
+    $rgb['R'] = hexdec($color[0] . $color[1]);
+    $rgb['G'] = hexdec($color[2] . $color[3]);
+    $rgb['B'] = hexdec($color[4] . $color[5]);
 
     return $rgb;
 }
 
-function wpinv_hex_darker( $color, $factor = 30 ) {
-    $base  = wpinv_rgb_from_hex( $color );
+function wpinv_hex_darker($color, $factor = 30) {
+    $base  = wpinv_rgb_from_hex($color);
     $color = '#';
 
-    foreach ( $base as $k => $v ) {
+    foreach ($base as $k => $v) {
         $amount      = $v / 100;
-        $amount      = round( $amount * $factor );
+        $amount      = round($amount * $factor);
         $new_decimal = $v - $amount;
 
-        $new_hex_component = dechex( $new_decimal );
-        if ( strlen( $new_hex_component ) < 2 ) {
+        $new_hex_component = dechex($new_decimal);
+        if (strlen($new_hex_component) < 2) {
             $new_hex_component = "0" . $new_hex_component;
         }
         $color .= $new_hex_component;
@@ -399,18 +399,18 @@ 
     return $color;
 }
 
-function wpinv_hex_lighter( $color, $factor = 30 ) {
-    $base  = wpinv_rgb_from_hex( $color );
+function wpinv_hex_lighter($color, $factor = 30) {
+    $base  = wpinv_rgb_from_hex($color);
     $color = '#';
 
-    foreach ( $base as $k => $v ) {
+    foreach ($base as $k => $v) {
         $amount      = 255 - $v;
         $amount      = $amount / 100;
-        $amount      = round( $amount * $factor );
+        $amount      = round($amount * $factor);
         $new_decimal = $v + $amount;
 
-        $new_hex_component = dechex( $new_decimal );
-        if ( strlen( $new_hex_component ) < 2 ) {
+        $new_hex_component = dechex($new_decimal);
+        if (strlen($new_hex_component) < 2) {
             $new_hex_component = "0" . $new_hex_component;
         }
         $color .= $new_hex_component;
@@ -419,22 +419,22 @@ 
     return $color;
 }
 
-function wpinv_light_or_dark( $color, $dark = '#000000', $light = '#FFFFFF' ) {
-    $hex = str_replace( '#', '', $color );
+function wpinv_light_or_dark($color, $dark = '#000000', $light = '#FFFFFF') {
+    $hex = str_replace('#', '', $color);
 
-    $c_r = hexdec( substr( $hex, 0, 2 ) );
-    $c_g = hexdec( substr( $hex, 2, 2 ) );
-    $c_b = hexdec( substr( $hex, 4, 2 ) );
+    $c_r = hexdec(substr($hex, 0, 2));
+    $c_g = hexdec(substr($hex, 2, 2));
+    $c_b = hexdec(substr($hex, 4, 2));
 
-    $brightness = ( ( $c_r * 299 ) + ( $c_g * 587 ) + ( $c_b * 114 ) ) / 1000;
+    $brightness = (($c_r * 299) + ($c_g * 587) + ($c_b * 114)) / 1000;
 
     return $brightness > 155 ? $dark : $light;
 }
 
-function wpinv_format_hex( $hex ) {
-    $hex = trim( str_replace( '#', '', $hex ) );
+function wpinv_format_hex($hex) {
+    $hex = trim(str_replace('#', '', $hex));
 
-    if ( strlen( $hex ) == 3 ) {
+    if (strlen($hex) == 3) {
         $hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
     }
 
@@ -454,12 +454,12 @@ 
  * @param string $encoding The encoding parameter is the character encoding. Default "UTF-8".
  * @return string
  */
-function wpinv_utf8_strimwidth( $str, $start, $width, $trimmaker = '', $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strimwidth' ) ) {
-        return mb_strimwidth( $str, $start, $width, $trimmaker, $encoding );
+function wpinv_utf8_strimwidth($str, $start, $width, $trimmaker = '', $encoding = 'UTF-8') {
+    if (function_exists('mb_strimwidth')) {
+        return mb_strimwidth($str, $start, $width, $trimmaker, $encoding);
     }
     
-    return wpinv_utf8_substr( $str, $start, $width, $encoding ) . $trimmaker;
+    return wpinv_utf8_substr($str, $start, $width, $encoding) . $trimmaker;
 }
 
 /**
@@ -471,28 +471,28 @@ 
  * @param string $encoding The encoding parameter is the character encoding. Default "UTF-8".
  * @return int Returns the number of characters in string.
  */
-function wpinv_utf8_strlen( $str, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strlen' ) ) {
-        return mb_strlen( $str, $encoding );
+function wpinv_utf8_strlen($str, $encoding = 'UTF-8') {
+    if (function_exists('mb_strlen')) {
+        return mb_strlen($str, $encoding);
     }
         
-    return strlen( $str );
+    return strlen($str);
 }
 
-function wpinv_utf8_strtolower( $str, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strtolower' ) ) {
-        return mb_strtolower( $str, $encoding );
+function wpinv_utf8_strtolower($str, $encoding = 'UTF-8') {
+    if (function_exists('mb_strtolower')) {
+        return mb_strtolower($str, $encoding);
     }
     
-    return strtolower( $str );
+    return strtolower($str);
 }
 
-function wpinv_utf8_strtoupper( $str, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strtoupper' ) ) {
-        return mb_strtoupper( $str, $encoding );
+function wpinv_utf8_strtoupper($str, $encoding = 'UTF-8') {
+    if (function_exists('mb_strtoupper')) {
+        return mb_strtoupper($str, $encoding);
     }
     
-    return strtoupper( $str );
+    return strtoupper($str);
 }
 
 /**
@@ -506,12 +506,12 @@ 
  * @param string $encoding The encoding parameter is the character encoding. Default "UTF-8".
  * @return int Returns the position of the first occurrence of search in the string.
  */
-function wpinv_utf8_strpos( $str, $find, $offset = 0, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strpos' ) ) {
-        return mb_strpos( $str, $find, $offset, $encoding );
+function wpinv_utf8_strpos($str, $find, $offset = 0, $encoding = 'UTF-8') {
+    if (function_exists('mb_strpos')) {
+        return mb_strpos($str, $find, $offset, $encoding);
     }
         
-    return strpos( $str, $find, $offset );
+    return strpos($str, $find, $offset);
 }
 
 /**
@@ -525,12 +525,12 @@ 
  * @param string $encoding The encoding parameter is the character encoding. Default "UTF-8".
  * @return int Returns the position of the last occurrence of search.
  */
-function wpinv_utf8_strrpos( $str, $find, $offset = 0, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strrpos' ) ) {
-        return mb_strrpos( $str, $find, $offset, $encoding );
+function wpinv_utf8_strrpos($str, $find, $offset = 0, $encoding = 'UTF-8') {
+    if (function_exists('mb_strrpos')) {
+        return mb_strrpos($str, $find, $offset, $encoding);
     }
         
-    return strrpos( $str, $find, $offset );
+    return strrpos($str, $find, $offset);
 }
 
 /**
@@ -545,16 +545,16 @@ 
  * @param string $encoding The encoding parameter is the character encoding. Default "UTF-8".
  * @return string
  */
-function wpinv_utf8_substr( $str, $start, $length = null, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_substr' ) ) {
-        if ( $length === null ) {
-            return mb_substr( $str, $start, wpinv_utf8_strlen( $str, $encoding ), $encoding );
+function wpinv_utf8_substr($str, $start, $length = null, $encoding = 'UTF-8') {
+    if (function_exists('mb_substr')) {
+        if ($length === null) {
+            return mb_substr($str, $start, wpinv_utf8_strlen($str, $encoding), $encoding);
         } else {
-            return mb_substr( $str, $start, $length, $encoding );
+            return mb_substr($str, $start, $length, $encoding);
         }
     }
         
-    return substr( $str, $start, $length );
+    return substr($str, $start, $length);
 }
 
 /**
@@ -566,48 +566,48 @@ 
  * @param string $encoding The encoding parameter is the character encoding. Default "UTF-8".
  * @return string The width of string.
  */
-function wpinv_utf8_strwidth( $str, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strwidth' ) ) {
-        return mb_strwidth( $str, $encoding );
+function wpinv_utf8_strwidth($str, $encoding = 'UTF-8') {
+    if (function_exists('mb_strwidth')) {
+        return mb_strwidth($str, $encoding);
     }
     
-    return wpinv_utf8_strlen( $str, $encoding );
+    return wpinv_utf8_strlen($str, $encoding);
 }
 
-function wpinv_utf8_ucfirst( $str, $lower_str_end = false, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_strlen' ) ) {
-        $first_letter = wpinv_utf8_strtoupper( wpinv_utf8_substr( $str, 0, 1, $encoding ), $encoding );
+function wpinv_utf8_ucfirst($str, $lower_str_end = false, $encoding = 'UTF-8') {
+    if (function_exists('mb_strlen')) {
+        $first_letter = wpinv_utf8_strtoupper(wpinv_utf8_substr($str, 0, 1, $encoding), $encoding);
         $str_end = "";
         
-        if ( $lower_str_end ) {
-            $str_end = wpinv_utf8_strtolower( wpinv_utf8_substr( $str, 1, wpinv_utf8_strlen( $str, $encoding ), $encoding ), $encoding );
+        if ($lower_str_end) {
+            $str_end = wpinv_utf8_strtolower(wpinv_utf8_substr($str, 1, wpinv_utf8_strlen($str, $encoding), $encoding), $encoding);
         } else {
-            $str_end = wpinv_utf8_substr( $str, 1, wpinv_utf8_strlen( $str, $encoding ), $encoding );
+            $str_end = wpinv_utf8_substr($str, 1, wpinv_utf8_strlen($str, $encoding), $encoding);
         }
 
         return $first_letter . $str_end;
     }
     
-    return ucfirst( $str );
+    return ucfirst($str);
 }
 
-function wpinv_utf8_ucwords( $str, $encoding = 'UTF-8' ) {
-    if ( function_exists( 'mb_convert_case' ) ) {
-        return mb_convert_case( $str, MB_CASE_TITLE, $encoding );
+function wpinv_utf8_ucwords($str, $encoding = 'UTF-8') {
+    if (function_exists('mb_convert_case')) {
+        return mb_convert_case($str, MB_CASE_TITLE, $encoding);
     }
     
-    return ucwords( $str );
+    return ucwords($str);
 }
 
-function wpinv_period_in_days( $period, $unit ) {
-    $period = absint( $period );
+function wpinv_period_in_days($period, $unit) {
+    $period = absint($period);
     
-    if ( $period > 0 ) {
-        if ( in_array( strtolower( $unit ), array( 'w', 'week', 'weeks' ) ) ) {
+    if ($period > 0) {
+        if (in_array(strtolower($unit), array('w', 'week', 'weeks'))) {
             $period = $period * 7;
-        } else if ( in_array( strtolower( $unit ), array( 'm', 'month', 'months' ) ) ) {
+        } else if (in_array(strtolower($unit), array('m', 'month', 'months'))) {
             $period = $period * 30;
-        } else if ( in_array( strtolower( $unit ), array( 'y', 'year', 'years' ) ) ) {
+        } else if (in_array(strtolower($unit), array('y', 'year', 'years'))) {
             $period = $period * 365;
         }
     }
@@ -615,14 +615,14 @@ 
     return $period;
 }
 
-function wpinv_cal_days_in_month( $calendar, $month, $year ) {
-    if ( function_exists( 'cal_days_in_month' ) ) {
-        return cal_days_in_month( $calendar, $month, $year );
+function wpinv_cal_days_in_month($calendar, $month, $year) {
+    if (function_exists('cal_days_in_month')) {
+        return cal_days_in_month($calendar, $month, $year);
     }
 
     // Fallback in case the calendar extension is not loaded in PHP
     // Only supports Gregorian calendar
-    return date( 't', mktime( 0, 0, 0, $month, 1, $year ) );
+    return date('t', mktime(0, 0, 0, $month, 1, $year));
 }
 
 /**
@@ -633,12 +633,12 @@ 
  *
  * @return string
  */
-function wpi_help_tip( $tip, $allow_html = false ) {
+function wpi_help_tip($tip, $allow_html = false) {
 
-    if ( $allow_html ) {
-        $tip = wpi_sanitize_tooltip( $tip );
+    if ($allow_html) {
+        $tip = wpi_sanitize_tooltip($tip);
     } else {
-        $tip = esc_attr( $tip );
+        $tip = esc_attr($tip);
     }
 
     return '<span class="wpi-help-tip dashicons dashicons-editor-help" title="' . $tip . '"></span>';
@@ -652,8 +652,8 @@ 
  * @param string $var
  * @return string
  */
-function wpi_sanitize_tooltip( $var ) {
-    return wp_kses( html_entity_decode( $var ), array(
+function wpi_sanitize_tooltip($var) {
+    return wp_kses(html_entity_decode($var), array(
         'br'     => array(),
         'em'     => array(),
         'strong' => array(),
@@ -664,7 +664,7 @@ 
         'li'     => array(),
         'ol'     => array(),
         'p'      => array(),
-    ) );
+    ));
 }
 
 /**
@@ -674,7 +674,7 @@ 
  */
 function wpinv_get_screen_ids() {
 
-    $screen_id = sanitize_title( __( 'Invoicing', 'invoicing' ) );
+    $screen_id = sanitize_title(__('Invoicing', 'invoicing'));
 
     $screen_ids = array(
         'toplevel_page_' . $screen_id,
@@ -692,7 +692,7 @@ 
         'invoicing_page_wpi-addons',
     );
 
-    return apply_filters( 'wpinv_screen_ids', $screen_ids );
+    return apply_filters('wpinv_screen_ids', $screen_ids);
 }
 
 /**
@@ -703,14 +703,14 @@ 
  * @param array|string $list List of values.
  * @return array Sanitized array of values.
  */
-function wpinv_parse_list( $list ) {
+function wpinv_parse_list($list) {
 
-    if ( empty( $list ) ) {
+    if (empty($list)) {
         $list = array();
     }
 
-	if ( ! is_array( $list ) ) {
-		return preg_split( '/[\s,]+/', $list, -1, PREG_SPLIT_NO_EMPTY );
+	if (!is_array($list)) {
+		return preg_split('/[\s,]+/', $list, -1, PREG_SPLIT_NO_EMPTY);
 	}
 
 	return $list;
@@ -724,16 +724,16 @@ 
  * @param string $key Type of data to fetch.
  * @return mixed Fetched data.
  */
-function wpinv_get_data( $key ) {
+function wpinv_get_data($key) {
 
     // Try fetching it from the cache.
-    $data = wp_cache_get( "wpinv-data-$key", 'wpinv' );
-    if( $data ) {
+    $data = wp_cache_get("wpinv-data-$key", 'wpinv');
+    if ($data) {
         return $data;
     }
 
-    $data = apply_filters( "wpinv_get_$key", include WPINV_PLUGIN_DIR . "includes/data/$key.php" );
-	wp_cache_set( "wpinv-data-$key", $data, 'wpinv' );
+    $data = apply_filters("wpinv_get_$key", include WPINV_PLUGIN_DIR . "includes/data/$key.php");
+	wp_cache_set("wpinv-data-$key", $data, 'wpinv');
 
 	return $data;
 }
@@ -747,10 +747,10 @@ 
  * @param bool $first_empty Whether or not the first item in the list should be empty
  * @return mixed Fetched data.
  */
-function wpinv_maybe_add_empty_option( $options, $first_empty ) {
+function wpinv_maybe_add_empty_option($options, $first_empty) {
 
-    if ( ! empty( $options ) && $first_empty ) {
-        return array_merge( array( '' => '' ), $options );
+    if (!empty($options) && $first_empty) {
+        return array_merge(array('' => ''), $options);
     }
     return $options;
 
@@ -762,21 +762,21 @@ 
  * @param mixed $var Data to sanitize.
  * @return string|array
  */
-function wpinv_clean( $var ) {
+function wpinv_clean($var) {
 
-	if ( is_array( $var ) ) {
-		return array_map( 'wpinv_clean', $var );
+	if (is_array($var)) {
+		return array_map('wpinv_clean', $var);
     }
 
-    if ( is_object( $var ) ) {
-		$object_vars = get_object_vars( $var );
-		foreach ( $object_vars as $property_name => $property_value ) {
-			$var->$property_name = wpinv_clean( $property_value );
+    if (is_object($var)) {
+		$object_vars = get_object_vars($var);
+		foreach ($object_vars as $property_name => $property_value) {
+			$var->$property_name = wpinv_clean($property_value);
         }
         return $var;
 	}
     
-    return is_string( $var ) ? sanitize_text_field( $var ) : $var;
+    return is_string($var) ? sanitize_text_field($var) : $var;
 }
 
 /**
@@ -785,43 +785,43 @@ 
  * @param string $str Data to convert.
  * @return string|array
  */
-function getpaid_convert_price_string_to_options( $str ) {
+function getpaid_convert_price_string_to_options($str) {
 
-	$raw_options = array_map( 'trim', explode( ',', $str ) );
-    $options     = array();
+	$raw_options = array_map('trim', explode(',', $str));
+    $options = array();
 
-    foreach ( $raw_options as $option ) {
+    foreach ($raw_options as $option) {
 
-        if ( '' == $option ) {
+        if ('' == $option) {
             continue;
         }
 
-        $option = array_map( 'trim', explode( '|', $option ) );
+        $option = array_map('trim', explode('|', $option));
 
         $price = null;
         $label = null;
 
-        if ( isset( $option[0] ) && '' !=  $option[0] ) {
-            $label  = $option[0];
+        if (isset($option[0]) && '' != $option[0]) {
+            $label = $option[0];
         }
 
-        if ( isset( $option[1] ) && '' !=  $option[1] ) {
+        if (isset($option[1]) && '' != $option[1]) {
             $price = $option[1];
         }
 
-        if ( ! isset( $price ) ) {
+        if (!isset($price)) {
             $price = $label;
         }
 
-        if ( ! isset( $price ) || ! is_numeric( $price ) ) {
+        if (!isset($price) || !is_numeric($price)) {
             continue;
         }
 
-        if ( ! isset( $label ) ) {
+        if (!isset($label)) {
             $label = $price;
         }
 
-        $options[ $price ] = $label;
+        $options[$price] = $label;
     }
 
     return $options;
@@ -830,22 +830,22 @@ 
 /**
  * Returns the help tip.
  */
-function getpaid_get_help_tip( $tip, $additional_classes = '' ) {
-    $additional_classes = sanitize_html_class( $additional_classes );
-    $tip                = esc_attr__( $tip );
+function getpaid_get_help_tip($tip, $additional_classes = '') {
+    $additional_classes = sanitize_html_class($additional_classes);
+    $tip                = esc_attr__($tip);
     return "<span class='wpi-help-tip dashicons dashicons-editor-help $additional_classes' title='$tip'></span>";
 }
 
 /**
  * Formats a date
  */
-function getpaid_format_date( $date ) {
+function getpaid_format_date($date) {
 
-    if ( empty( $date ) || $date == '0000-00-00 00:00:00' ) {
+    if (empty($date) || $date == '0000-00-00 00:00:00') {
         return '';
     }
 
-    return date_i18n( getpaid_date_format(), strtotime( $date ) );
+    return date_i18n(getpaid_date_format(), strtotime($date));
 
 }
 
@@ -854,9 +854,9 @@ 
  *
  * @return string
  */
-function getpaid_format_date_value( $date, $default = "&mdash;" ) {
-    $date = getpaid_format_date( $date );
-    return empty( $date ) ? $default : $date;
+function getpaid_format_date_value($date, $default = "&mdash;") {
+    $date = getpaid_format_date($date);
+    return empty($date) ? $default : $date;
 }
 
 /**
@@ -865,7 +865,7 @@ 
  * @return string
  */
 function getpaid_date_format() {
-	return apply_filters( 'getpaid_date_format', get_option( 'date_format' ) );
+	return apply_filters('getpaid_date_format', get_option('date_format'));
 }
 
 /**
@@ -874,7 +874,7 @@ 
  * @return string
  */
 function getpaid_time_format() {
-	return apply_filters( 'getpaid_time_format', get_option( 'time_format' ) );
+	return apply_filters('getpaid_time_format', get_option('time_format'));
 }
 
 /**
@@ -884,16 +884,16 @@ 
  * @param  integer $limit Limit size in characters.
  * @return string
  */
-function getpaid_limit_length( $string, $limit ) {
+function getpaid_limit_length($string, $limit) {
     $str_limit = $limit - 3;
 
-	if ( function_exists( 'mb_strimwidth' ) ) {
-		if ( mb_strlen( $string ) > $limit ) {
-			$string = mb_strimwidth( $string, 0, $str_limit ) . '...';
+	if (function_exists('mb_strimwidth')) {
+		if (mb_strlen($string) > $limit) {
+			$string = mb_strimwidth($string, 0, $str_limit) . '...';
 		}
 	} else {
-		if ( strlen( $string ) > $limit ) {
-			$string = substr( $string, 0, $str_limit ) . '...';
+		if (strlen($string) > $limit) {
+			$string = substr($string, 0, $str_limit) . '...';
 		}
 	}
     return $string;
@@ -907,7 +907,7 @@ 
  * @since 1.0.19
  */
 function getpaid_api() {
-    return getpaid()->get( 'api' );
+    return getpaid()->get('api');
 }
 
 /**
@@ -917,7 +917,7 @@ 
  * @since 1.0.19
  */
 function getpaid_post_types() {
-    return getpaid()->get( 'post_types' );
+    return getpaid()->get('post_types');
 }
 
 /**
@@ -927,7 +927,7 @@ 
  * @since 1.0.19
  */
 function getpaid_session() {
-    return getpaid()->get( 'session' );
+    return getpaid()->get('session');
 }
 
 /**
@@ -937,7 +937,7 @@ 
  * @since 1.0.19
  */
 function getpaid_notes() {
-    return getpaid()->get( 'notes' );
+    return getpaid()->get('notes');
 }
 
 /**
@@ -946,7 +946,7 @@ 
  * @return GetPaid_Admin
  */
 function getpaid_admin() {
-    return getpaid()->get( 'admin' );
+    return getpaid()->get('admin');
 }
 
 /**
@@ -956,8 +956,8 @@ 
  * @param string $base the base url
  * @return string
  */
-function getpaid_get_authenticated_action_url( $action, $base = false ) {
-    return wp_nonce_url( add_query_arg( 'getpaid-action', $action, $base ), 'getpaid-nonce', 'getpaid-nonce' );
+function getpaid_get_authenticated_action_url($action, $base = false) {
+    return wp_nonce_url(add_query_arg('getpaid-action', $action, $base), 'getpaid-nonce', 'getpaid-nonce');
 }
 
 /**
@@ -965,11 +965,11 @@ 
  *
  * @return string
  */
-function getpaid_get_post_type_label( $post_type, $plural = true ) {
+function getpaid_get_post_type_label($post_type, $plural = true) {
 
-    $post_type = get_post_type_object( $post_type );
+    $post_type = get_post_type_object($post_type);
 
-    if ( ! is_object( $post_type ) ) {
+    if (!is_object($post_type)) {
         return null;
     }
 
@@ -982,18 +982,18 @@ 
  *
  * @return mixed|null
  */
-function getpaid_get_array_field( $array, $key, $secondary_key = null ) {
+function getpaid_get_array_field($array, $key, $secondary_key = null) {
 
-    if ( ! is_array( $array ) ) {
+    if (!is_array($array)) {
         return null;
     }
 
-    if ( ! empty( $secondary_key ) ) {
-        $array = isset( $array[ $secondary_key ] ) ? $array[ $secondary_key ] : array();
-        return getpaid_get_array_field( $array, $key );
+    if (!empty($secondary_key)) {
+        $array = isset($array[$secondary_key]) ? $array[$secondary_key] : array();
+        return getpaid_get_array_field($array, $key);
     }
 
-    return isset( $array[ $key ] ) ? $array[ $key ] : null;
+    return isset($array[$key]) ? $array[$key] : null;
 
 }
 
@@ -1002,12 +1002,12 @@ 
  *
  * @return array
  */
-function getpaid_array_merge_if_empty( $args, $defaults ) {
+function getpaid_array_merge_if_empty($args, $defaults) {
 
-    foreach ( $defaults as $key => $value ) {
+    foreach ($defaults as $key => $value) {
 
-        if ( array_key_exists( $key, $args ) && empty( $args[ $key ] ) ) {
-            $args[ $key ] = $value;
+        if (array_key_exists($key, $args) && empty($args[$key])) {
+            $args[$key] = $value;
         }
 
     }

includes/class-wpinv-ajax.php

Spacing +198 added lines, -198 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
  
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * WPInv_Ajax class.
@@ -17,8 +17,8 @@ 
 	 * Hook in ajax handlers.
 	 */
 	public static function init() {
-		add_action( 'init', array( __CLASS__, 'define_ajax' ), 0 );
-		add_action( 'template_redirect', array( __CLASS__, 'do_wpinv_ajax' ), 0 );
+		add_action('init', array(__CLASS__, 'define_ajax'), 0);
+		add_action('template_redirect', array(__CLASS__, 'do_wpinv_ajax'), 0);
 		self::add_ajax_events();
     }
 
@@ -27,11 +27,11 @@ 
 	 */
 	public static function define_ajax() {
 
-		if ( ! empty( $_GET['wpinv-ajax'] ) ) {
-			getpaid_maybe_define_constant( 'DOING_AJAX', true );
-			getpaid_maybe_define_constant( 'WPInv_DOING_AJAX', true );
-			if ( ! WP_DEBUG || ( WP_DEBUG && ! WP_DEBUG_DISPLAY ) ) {
-				/** @scrutinizer ignore-unhandled */ @ini_set( 'display_errors', 0 );
+		if (!empty($_GET['wpinv-ajax'])) {
+			getpaid_maybe_define_constant('DOING_AJAX', true);
+			getpaid_maybe_define_constant('WPInv_DOING_AJAX', true);
+			if (!WP_DEBUG || (WP_DEBUG && !WP_DEBUG_DISPLAY)) {
+				/** @scrutinizer ignore-unhandled */ @ini_set('display_errors', 0);
 			}
 			$GLOBALS['wpdb']->hide_errors();
 		}
@@ -44,13 +44,13 @@ 
 	 * @since 1.0.18
 	 */
 	private static function wpinv_ajax_headers() {
-		if ( ! headers_sent() ) {
+		if (!headers_sent()) {
 			send_origin_headers();
 			send_nosniff_header();
 			nocache_headers();
-			header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
-			header( 'X-Robots-Tag: noindex' );
-			status_header( 200 );
+			header('Content-Type: text/html; charset=' . get_option('blog_charset'));
+			header('X-Robots-Tag: noindex');
+			status_header(200);
 		}
     }
     
@@ -60,16 +60,16 @@ 
 	public static function do_wpinv_ajax() {
 		global $wp_query;
 
-		if ( ! empty( $_GET['wpinv-ajax'] ) ) {
-			$wp_query->set( 'wpinv-ajax', sanitize_text_field( wp_unslash( $_GET['wpinv-ajax'] ) ) );
+		if (!empty($_GET['wpinv-ajax'])) {
+			$wp_query->set('wpinv-ajax', sanitize_text_field(wp_unslash($_GET['wpinv-ajax'])));
 		}
 
-		$action = $wp_query->get( 'wpinv-ajax' );
+		$action = $wp_query->get('wpinv-ajax');
 
-		if ( $action ) {
+		if ($action) {
 			self::wpinv_ajax_headers();
-			$action = sanitize_text_field( $action );
-			do_action( 'wpinv_ajax_' . $action );
+			$action = sanitize_text_field($action);
+			do_action('wpinv_ajax_' . $action);
 			wp_die();
 		}
 
@@ -101,36 +101,36 @@ 
             'payment_form_refresh_prices' => true,
         );
 
-        foreach ( $ajax_events as $ajax_event => $nopriv ) {
-            add_action( 'wp_ajax_wpinv_' . $ajax_event, array( __CLASS__, $ajax_event ) );
-            add_action( 'wp_ajax_getpaid_' . $ajax_event, array( __CLASS__, $ajax_event ) );
+        foreach ($ajax_events as $ajax_event => $nopriv) {
+            add_action('wp_ajax_wpinv_' . $ajax_event, array(__CLASS__, $ajax_event));
+            add_action('wp_ajax_getpaid_' . $ajax_event, array(__CLASS__, $ajax_event));
 
-            if ( $nopriv ) {
-                add_action( 'wp_ajax_nopriv_wpinv_' . $ajax_event, array( __CLASS__, $ajax_event ) );
-                add_action( 'wp_ajax_nopriv_getpaid_' . $ajax_event, array( __CLASS__, $ajax_event ) );
-                add_action( 'wpinv_ajax_' . $ajax_event, array( __CLASS__, $ajax_event ) );
+            if ($nopriv) {
+                add_action('wp_ajax_nopriv_wpinv_' . $ajax_event, array(__CLASS__, $ajax_event));
+                add_action('wp_ajax_nopriv_getpaid_' . $ajax_event, array(__CLASS__, $ajax_event));
+                add_action('wpinv_ajax_' . $ajax_event, array(__CLASS__, $ajax_event));
             }
         }
     }
     
     public static function add_note() {
-        check_ajax_referer( 'add-invoice-note', '_nonce' );
+        check_ajax_referer('add-invoice-note', '_nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             die(-1);
         }
 
-        $post_id   = absint( $_POST['post_id'] );
-        $note      = wp_kses_post( trim( stripslashes( $_POST['note'] ) ) );
-        $note_type = sanitize_text_field( $_POST['note_type'] );
+        $post_id   = absint($_POST['post_id']);
+        $note      = wp_kses_post(trim(stripslashes($_POST['note'])));
+        $note_type = sanitize_text_field($_POST['note_type']);
 
         $is_customer_note = $note_type == 'customer' ? 1 : 0;
 
-        if ( $post_id > 0 ) {
-            $note_id = wpinv_insert_payment_note( $post_id, $note, $is_customer_note );
+        if ($post_id > 0) {
+            $note_id = wpinv_insert_payment_note($post_id, $note, $is_customer_note);
 
-            if ( $note_id > 0 && !is_wp_error( $note_id ) ) {
-                wpinv_get_invoice_note_line_item( $note_id );
+            if ($note_id > 0 && !is_wp_error($note_id)) {
+                wpinv_get_invoice_note_line_item($note_id);
             }
         }
 
@@ -138,16 +138,16 @@ 
     }
 
     public static function delete_note() {
-        check_ajax_referer( 'delete-invoice-note', '_nonce' );
+        check_ajax_referer('delete-invoice-note', '_nonce');
 
-        if ( !wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             die(-1);
         }
 
-        $note_id = (int)$_POST['note_id'];
+        $note_id = (int) $_POST['note_id'];
 
-        if ( $note_id > 0 ) {
-            wp_delete_comment( $note_id, true );
+        if ($note_id > 0) {
+            wp_delete_comment($note_id, true);
         }
 
         die();
@@ -165,34 +165,34 @@ 
     public static function get_billing_details() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // Can the user manage the plugin?
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             die(-1);
         }
 
         // Do we have a user id?
         $user_id = $_GET['user_id'];
 
-        if ( empty( $user_id ) || ! is_numeric( $user_id ) ) {
+        if (empty($user_id) || !is_numeric($user_id)) {
             die(-1);
         }
 
         // Fetch the billing details.
-        $billing_details    = wpinv_get_user_address( $user_id );
-        $billing_details    = apply_filters( 'wpinv_ajax_billing_details', $billing_details, $user_id );
+        $billing_details    = wpinv_get_user_address($user_id);
+        $billing_details    = apply_filters('wpinv_ajax_billing_details', $billing_details, $user_id);
 
         // unset the user id and email.
-        $to_ignore = array( 'user_id', 'email' );
+        $to_ignore = array('user_id', 'email');
 
-        foreach ( $to_ignore as $key ) {
-            if ( isset( $billing_details[ $key ] ) ) {
-                unset( $billing_details[ $key ] );
+        foreach ($to_ignore as $key) {
+            if (isset($billing_details[$key])) {
+                unset($billing_details[$key]);
             }
         }
 
-        wp_send_json_success( $billing_details );
+        wp_send_json_success($billing_details);
 
     }
 
@@ -202,47 +202,47 @@ 
     public static function check_new_user_email() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // Can the user manage the plugin?
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             die(-1);
         }
 
         // We need an email address.
-        if ( empty( $_GET['email'] ) ) {
-            _e( "Provide the new user's email address", 'invoicing' );
+        if (empty($_GET['email'])) {
+            _e("Provide the new user's email address", 'invoicing');
             exit;
         }
 
         // Ensure the email is valid.
-        $email = sanitize_text_field( $_GET['email'] );
-        if ( ! is_email( $email ) ) {
-            _e( 'Invalid email address', 'invoicing' );
+        $email = sanitize_text_field($_GET['email']);
+        if (!is_email($email)) {
+            _e('Invalid email address', 'invoicing');
             exit;
         }
 
         // And it does not exist.
-        if ( email_exists( $email ) ) {
-            _e( 'A user with this email address already exists', 'invoicing' );
+        if (email_exists($email)) {
+            _e('A user with this email address already exists', 'invoicing');
             exit;
         }
 
-        wp_send_json_success( true );
+        wp_send_json_success(true);
     }
     
     public static function run_tool() {
-        check_ajax_referer( 'wpinv-nonce', '_nonce' );
-        if ( !wpinv_current_user_can_manage_invoicing() ) {
+        check_ajax_referer('wpinv-nonce', '_nonce');
+        if (!wpinv_current_user_can_manage_invoicing()) {
             die(-1);
         }
         
-        $tool = sanitize_text_field( $_POST['tool'] );
+        $tool = sanitize_text_field($_POST['tool']);
         
-        do_action( 'wpinv_run_tool' );
+        do_action('wpinv_run_tool');
         
-        if ( !empty( $tool ) ) {
-            do_action( 'wpinv_tool_' . $tool );
+        if (!empty($tool)) {
+            do_action('wpinv_tool_' . $tool);
         }
     }
 
@@ -252,27 +252,27 @@ 
     public static function get_payment_form() {
 
         // Check nonce.
-        check_ajax_referer( 'getpaid_form_nonce' );
+        check_ajax_referer('getpaid_form_nonce');
 
         // Is the request set up correctly?
-		if ( empty( $_GET['form'] ) && empty( $_GET['item'] ) ) {
+		if (empty($_GET['form']) && empty($_GET['item'])) {
 			echo aui()->alert(
 				array(
 					'type'    => 'warning',
-					'content' => __( 'No payment form or item provided', 'invoicing' ),
+					'content' => __('No payment form or item provided', 'invoicing'),
 				)
             );
             exit;
         }
 
         // Payment form or button?
-		if ( ! empty( $_GET['form'] ) ) {
-            getpaid_display_payment_form( $_GET['form'] );
-		} else if( ! empty( $_GET['invoice'] ) ) {
-		    getpaid_display_invoice_payment_form( $_GET['invoice'] );
+		if (!empty($_GET['form'])) {
+            getpaid_display_payment_form($_GET['form']);
+		} else if (!empty($_GET['invoice'])) {
+		    getpaid_display_invoice_payment_form($_GET['invoice']);
         } else {
-			$items = getpaid_convert_items_to_array( $_GET['item'] );
-		    getpaid_display_item_payment_form( $items );
+			$items = getpaid_convert_items_to_array($_GET['item']);
+		    getpaid_display_item_payment_form($items);
         }
 
         exit;
@@ -287,17 +287,17 @@ 
     public static function payment_form() {
 
         // Check nonce.
-        check_ajax_referer( 'getpaid_form_nonce' );
+        check_ajax_referer('getpaid_form_nonce');
 
         // ... form fields...
-        if ( empty( $_POST['getpaid_payment_form_submission'] ) ) {
-            _e( 'Error: Reload the page and try again.', 'invoicing' );
+        if (empty($_POST['getpaid_payment_form_submission'])) {
+            _e('Error: Reload the page and try again.', 'invoicing');
             exit;
         }
 
         // Process the payment form.
-        $checkout_class = apply_filters( 'getpaid_checkout_class', 'GetPaid_Checkout' );
-        $checkout       = new $checkout_class( new GetPaid_Payment_Form_Submission() );
+        $checkout_class = apply_filters('getpaid_checkout_class', 'GetPaid_Checkout');
+        $checkout       = new $checkout_class(new GetPaid_Payment_Form_Submission());
         $checkout->process_checkout();
 
         exit;
@@ -310,55 +310,55 @@ 
      */
     public static function get_payment_form_states_field() {
 
-        if ( empty( $_GET['country'] ) || empty( $_GET['form'] ) ) {
+        if (empty($_GET['country']) || empty($_GET['form'])) {
             exit;
         }
 
-        $elements = getpaid_get_payment_form_elements( $_GET['form'] );
+        $elements = getpaid_get_payment_form_elements($_GET['form']);
 
-        if ( empty( $elements ) ) {
+        if (empty($elements)) {
             exit;
         }
 
         $address_fields = array();
-        foreach ( $elements as $element ) {
-            if ( 'address' === $element['type'] ) {
+        foreach ($elements as $element) {
+            if ('address' === $element['type']) {
                 $address_fields = $element;
                 break;
             }
         }
 
-        if ( empty( $address_fields ) ) {
+        if (empty($address_fields)) {
             exit;
         }
 
-        foreach ( $address_fields['fields'] as $address_field ) {
+        foreach ($address_fields['fields'] as $address_field) {
 
-            if ( 'wpinv_state' == $address_field['name'] ) {
+            if ('wpinv_state' == $address_field['name']) {
 
-                $wrap_class  = getpaid_get_form_element_grid_class( $address_field );
-                $wrap_class  = esc_attr( "$wrap_class getpaid-address-field-wrapper" );
-                $placeholder = empty( $address_field['placeholder'] ) ? '' : esc_attr( $address_field['placeholder'] );
-                $description = empty( $address_field['description'] ) ? '' : wp_kses_post( $address_field['description'] );
-                $value       = is_user_logged_in() ? get_user_meta( get_current_user_id(), '_wpinv_state', true ) : '';
-                $label       = empty( $address_field['label'] ) ? '' : wp_kses_post( $address_field['label'] );
+                $wrap_class  = getpaid_get_form_element_grid_class($address_field);
+                $wrap_class  = esc_attr("$wrap_class getpaid-address-field-wrapper");
+                $placeholder = empty($address_field['placeholder']) ? '' : esc_attr($address_field['placeholder']);
+                $description = empty($address_field['description']) ? '' : wp_kses_post($address_field['description']);
+                $value       = is_user_logged_in() ? get_user_meta(get_current_user_id(), '_wpinv_state', true) : '';
+                $label       = empty($address_field['label']) ? '' : wp_kses_post($address_field['label']);
 
-                if ( ! empty( $address_field['required'] ) ) {
+                if (!empty($address_field['required'])) {
                     $label .= "<span class='text-danger'> *</span>";
                 }
 
-                $html = getpaid_get_states_select_markup (
-                    sanitize_text_field( $_GET['country'] ),
+                $html = getpaid_get_states_select_markup(
+                    sanitize_text_field($_GET['country']),
                     $value,
                     $placeholder,
                     $label,
                     $description,
-                    ! empty( $address_field['required'] ),
+                    !empty($address_field['required']),
                     $wrap_class,
-                    wpinv_clean( $_GET['name'] )
+                    wpinv_clean($_GET['name'])
                 );
 
-                wp_send_json_success( $html );
+                wp_send_json_success($html);
                 exit;
 
             }
@@ -374,56 +374,56 @@ 
     public static function recalculate_invoice_totals() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice.
-        if ( empty( $_POST['post_id'] ) ) {
+        if (empty($_POST['post_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( trim( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(trim($_POST['post_id']));
 
         // Ensure it exists.
-        if ( ! $invoice->get_id() ) {
+        if (!$invoice->get_id()) {
             exit;
         }
 
         // Maybe set the country, state, currency.
-        foreach ( array( 'country', 'state', 'currency' ) as $key ) {
-            if ( isset( $_POST[ $key ] ) ) {
+        foreach (array('country', 'state', 'currency') as $key) {
+            if (isset($_POST[$key])) {
                 $method = "set_$key";
-                $invoice->$method( $_POST[ $key ] );
+                $invoice->$method($_POST[$key]);
             }
         }
 
         // Maybe disable taxes.
-        $invoice->set_disable_taxes( ! empty( $_POST['taxes'] ) );
+        $invoice->set_disable_taxes(!empty($_POST['taxes']));
 
         // Recalculate totals.
         $invoice->recalculate_total();
 
-        $total = wpinv_price( wpinv_format_amount( $invoice->get_total() ), $invoice->get_currency() );
+        $total = wpinv_price(wpinv_format_amount($invoice->get_total()), $invoice->get_currency());
 
-        if ( $invoice->is_recurring() && $invoice->is_parent() && $invoice->get_total() != $invoice->get_recurring_total() ) {
-            $recurring_total = wpinv_price( wpinv_format_amount( $invoice->get_recurring_total() ), $invoice->get_currency() );
-            $total          .= '<small class="form-text text-muted">' . sprintf( __( 'Recurring Price: %s', 'invoicing' ), $recurring_total ) . '</small>';
+        if ($invoice->is_recurring() && $invoice->is_parent() && $invoice->get_total() != $invoice->get_recurring_total()) {
+            $recurring_total = wpinv_price(wpinv_format_amount($invoice->get_recurring_total()), $invoice->get_currency());
+            $total          .= '<small class="form-text text-muted">' . sprintf(__('Recurring Price: %s', 'invoicing'), $recurring_total) . '</small>';
         }
 
         $totals = array(
-            'subtotal' => wpinv_price( wpinv_format_amount( $invoice->get_subtotal() ), $invoice->get_currency() ),
-            'discount' => wpinv_price( wpinv_format_amount( $invoice->get_total_discount() ), $invoice->get_currency() ),
-            'tax'      => wpinv_price( wpinv_format_amount( $invoice->get_total_tax() ), $invoice->get_currency() ),
+            'subtotal' => wpinv_price(wpinv_format_amount($invoice->get_subtotal()), $invoice->get_currency()),
+            'discount' => wpinv_price(wpinv_format_amount($invoice->get_total_discount()), $invoice->get_currency()),
+            'tax'      => wpinv_price(wpinv_format_amount($invoice->get_total_tax()), $invoice->get_currency()),
             'total'    => $total,
         );
 
-        $totals = apply_filters( 'getpaid_invoice_totals', $totals, $invoice );
+        $totals = apply_filters('getpaid_invoice_totals', $totals, $invoice);
 
-        wp_send_json_success( compact( 'totals' ) );
+        wp_send_json_success(compact('totals'));
     }
 
     /**
@@ -432,33 +432,33 @@ 
     public static function get_invoice_items() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and items.
-        if ( empty( $_POST['post_id'] ) ) {
+        if (empty($_POST['post_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( trim( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(trim($_POST['post_id']));
 
         // Ensure it exists.
-        if ( ! $invoice->get_id() ) {
+        if (!$invoice->get_id()) {
             exit;
         }
 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item_id => $item ) {
-            $items[ $item_id ] = $item->prepare_data_for_invoice_edit_ajax(  $invoice->get_currency()  );
+        foreach ($invoice->get_items() as $item_id => $item) {
+            $items[$item_id] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency());
         }
 
-        wp_send_json_success( compact( 'items' ) );
+        wp_send_json_success(compact('items'));
     }
 
     /**
@@ -467,50 +467,50 @@ 
     public static function edit_invoice_item() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and item details.
-        if ( empty( $_POST['post_id'] ) || empty( $_POST['data'] ) ) {
+        if (empty($_POST['post_id']) || empty($_POST['data'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( trim( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(trim($_POST['post_id']));
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
         // Format the data.
-        $data = wp_list_pluck( $_POST['data'], 'value', 'field' );
+        $data = wp_list_pluck($_POST['data'], 'value', 'field');
 
         // Ensure that we have an item id.
-        if ( empty( $data['id'] ) ) {
+        if (empty($data['id'])) {
             exit;
         }
 
         // Abort if the invoice does not have the specified item.
-        $item = $invoice->get_item( (int) $data['id'] );
+        $item = $invoice->get_item((int) $data['id']);
 
-        if ( empty( $item ) ) {
+        if (empty($item)) {
             exit;
         }
 
         // Update the item.
-        $item->set_price( $data['price'] );
-        $item->set_name( $data['name'] );
-        $item->set_description( $data['description'] );
-        $item->set_quantity( $data['quantity'] );
+        $item->set_price($data['price']);
+        $item->set_name($data['name']);
+        $item->set_description($data['description']);
+        $item->set_quantity($data['quantity']);
 
         // Add it to the invoice.
-        $error = $invoice->add_item( $item );
+        $error = $invoice->add_item($item);
         $alert = false;
-        if ( is_wp_error( $error ) ) {
+        if (is_wp_error($error)) {
             $alert = $error->get_error_message();
         }
 
@@ -523,11 +523,11 @@ 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item_id => $item ) {
-            $items[ $item_id ] = $item->prepare_data_for_invoice_edit_ajax(  $invoice->get_currency()  );
+        foreach ($invoice->get_items() as $item_id => $item) {
+            $items[$item_id] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency());
         }
 
-        wp_send_json_success( compact( 'items', 'alert' ) );
+        wp_send_json_success(compact('items', 'alert'));
     }
 
     /**
@@ -536,33 +536,33 @@ 
     public static function remove_invoice_item() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and an item.
-        if ( empty( $_POST['post_id'] ) || empty( $_POST['item_id'] ) ) {
+        if (empty($_POST['post_id']) || empty($_POST['item_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( trim( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(trim($_POST['post_id']));
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
         // Abort if the invoice does not have the specified item.
-        $item = $invoice->get_item( (int) $_POST['item_id'] );
+        $item = $invoice->get_item((int) $_POST['item_id']);
 
-        if ( empty( $item ) ) {
+        if (empty($item)) {
             exit;
         }
 
-        $invoice->remove_item( (int) $_POST['item_id'] );
+        $invoice->remove_item((int) $_POST['item_id']);
 
         // Update totals.
         $invoice->recalculate_total();
@@ -573,11 +573,11 @@ 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item_id => $item ) {
-            $items[ $item_id ] = $item->prepare_data_for_invoice_edit_ajax(  $invoice->get_currency()  );
+        foreach ($invoice->get_items() as $item_id => $item) {
+            $items[$item_id] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency());
         }
 
-        wp_send_json_success( compact( 'items' ) );
+        wp_send_json_success(compact('items'));
     }
 
     /**
@@ -586,39 +586,39 @@ 
     public static function add_invoice_items() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and items.
-        if ( empty( $_POST['post_id'] ) || empty( $_POST['items'] ) ) {
+        if (empty($_POST['post_id']) || empty($_POST['items'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( trim( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(trim($_POST['post_id']));
         $alert   = false;
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
         // Add the items.
-        foreach ( $_POST['items'] as $data ) {
+        foreach ($_POST['items'] as $data) {
 
-            $item = new GetPaid_Form_Item( $data[ 'id' ] );
+            $item = new GetPaid_Form_Item($data['id']);
 
-            if ( is_numeric( $data[ 'qty' ] ) && (int) $data[ 'qty' ] > 0 ) {
-                $item->set_quantity( $data[ 'qty' ] );
+            if (is_numeric($data['qty']) && (int) $data['qty'] > 0) {
+                $item->set_quantity($data['qty']);
             }
 
-            if ( $item->get_id() > 0 ) {
-                $error = $invoice->add_item( $item );
+            if ($item->get_id() > 0) {
+                $error = $invoice->add_item($item);
 
-                if ( is_wp_error( $error ) ) {
+                if (is_wp_error($error)) {
                     $alert = $error->get_error_message();
                 }
 
@@ -633,11 +633,11 @@ 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item_id => $item ) {
-            $items[ $item_id ] = $item->prepare_data_for_invoice_edit_ajax( $invoice->get_currency() );
+        foreach ($invoice->get_items() as $item_id => $item) {
+            $items[$item_id] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency());
         }
 
-        wp_send_json_success( compact( 'items', 'alert' ) );
+        wp_send_json_success(compact('items', 'alert'));
     }
 
     /**
@@ -646,15 +646,15 @@ 
     public static function get_invoicing_items() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need a search term.
-        if ( empty( $_GET['search'] ) ) {
-            wp_send_json_success( array() );
+        if (empty($_GET['search'])) {
+            wp_send_json_success(array());
         }
 
         // Retrieve items.
@@ -663,8 +663,8 @@ 
             'orderby'        => 'title',
             'order'          => 'ASC',
             'posts_per_page' => -1,
-            'post_status'    => array( 'publish' ),
-            's'              => trim( $_GET['search'] ),
+            'post_status'    => array('publish'),
+            's'              => trim($_GET['search']),
             'meta_query'     => array(
                 array(
                     'key'       => '_wpinv_type',
@@ -674,22 +674,22 @@ 
             )
         );
 
-        $items = get_posts( apply_filters( 'getpaid_ajax_invoice_items_query_args', $item_args ) );
+        $items = get_posts(apply_filters('getpaid_ajax_invoice_items_query_args', $item_args));
         $data  = array();
 
 
-        $is_payment_form = ( ! empty( $_GET['post_id'] ) && 'wpi_payment_form' == get_post_type( $_GET['post_id'] ) );
+        $is_payment_form = (!empty($_GET['post_id']) && 'wpi_payment_form' == get_post_type($_GET['post_id']));
 
-        foreach ( $items as $item ) {
-            $item      = new GetPaid_Form_Item( $item );
+        foreach ($items as $item) {
+            $item = new GetPaid_Form_Item($item);
             $data[] = array(
                 'id'        => (int) $item->get_id(),
-                'text'      => strip_tags( $item->get_name() ),
-                'form_data' => $is_payment_form ? $item->prepare_data_for_use( false ) : '',
+                'text'      => strip_tags($item->get_name()),
+                'form_data' => $is_payment_form ? $item->prepare_data_for_use(false) : '',
             );
         }
 
-        wp_send_json_success( $data );
+        wp_send_json_success($data);
 
     }
 
@@ -699,24 +699,24 @@ 
     public static function get_aui_states_field() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // We need a country.
-        if ( empty( $_GET['country'] ) ) {
+        if (empty($_GET['country'])) {
             exit;
         }
 
-        $states = wpinv_get_country_states( trim( $_GET['country'] ) );
-        $state  = isset( $_GET['state'] ) ? trim( $_GET['state'] ) : wpinv_get_default_state();
+        $states = wpinv_get_country_states(trim($_GET['country']));
+        $state  = isset($_GET['state']) ? trim($_GET['state']) : wpinv_get_default_state();
 
-        if ( empty( $states ) ) {
+        if (empty($states)) {
 
             $html = aui()->input(
                 array(
                     'type'        => 'text',
                     'id'          => 'wpinv_state',
                     'name'        => 'wpinv_state',
-                    'label'       => __( 'State', 'invoicing' ),
+                    'label'       => __('State', 'invoicing'),
                     'label_type'  => 'vertical',
                     'placeholder' => 'Liège',
                     'class'       => 'form-control-sm',
@@ -730,9 +730,9 @@ 
                 array(
                     'id'          => 'wpinv_state',
                     'name'        => 'wpinv_state',
-                    'label'       => __( 'State', 'invoicing' ),
+                    'label'       => __('State', 'invoicing'),
                     'label_type'  => 'vertical',
-                    'placeholder' => __( 'Select a state', 'invoicing' ),
+                    'placeholder' => __('Select a state', 'invoicing'),
                     'class'       => 'form-control-sm',
                     'value'       => $state,
                     'options'     => $states,
@@ -746,7 +746,7 @@ 
         wp_send_json_success(
             array(
                 'html'   => $html,
-                'select' => ! empty ( $states )
+                'select' => !empty ($states)
             )
         );
 
@@ -760,11 +760,11 @@ 
     public static function payment_form_refresh_prices() {
 
         // Check nonce.
-        check_ajax_referer( 'getpaid_form_nonce' );
+        check_ajax_referer('getpaid_form_nonce');
 
         // ... form fields...
-        if ( empty( $_POST['getpaid_payment_form_submission'] ) ) {
-            _e( 'Error: Reload the page and try again.', 'invoicing' );
+        if (empty($_POST['getpaid_payment_form_submission'])) {
+            _e('Error: Reload the page and try again.', 'invoicing');
             exit;
         }
 
@@ -772,18 +772,18 @@ 
         $submission = new GetPaid_Payment_Form_Submission();
 
         // Do we have an error?
-        if ( ! empty( $submission->last_error ) ) {
+        if (!empty($submission->last_error)) {
             echo $submission->last_error;
             exit;
         }
 
         // Prepare the response.
-        $response = new GetPaid_Payment_Form_Submission_Refresh_Prices( $submission );
+        $response = new GetPaid_Payment_Form_Submission_Refresh_Prices($submission);
         
         // Filter the response.
-        $response = apply_filters( 'getpaid_payment_form_ajax_refresh_prices', $response->response, $submission );
+        $response = apply_filters('getpaid_payment_form_ajax_refresh_prices', $response->response, $submission);
 
-        wp_send_json_success( $response );
+        wp_send_json_success($response);
     }
 
 }

includes/wpinv-address-functions.php

Spacing +139 added lines, -139 removed lines

@@ -7,15 +7,15 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
 
 function wpinv_get_default_country() {
-	$country = wpinv_get_option( 'default_country', 'UK' );
+	$country = wpinv_get_option('default_country', 'UK');
 
-	return apply_filters( 'wpinv_default_country', $country );
+	return apply_filters('wpinv_default_country', $country);
 }
 
 /**
@@ -23,8 +23,8 @@ 
  *
  * @return string
  */
-function getpaid_get_ip_country( $ip_address = '' ) {
-    $country = GetPaid_Geolocation::geolocate_ip( $ip_address, true );
+function getpaid_get_ip_country($ip_address = '') {
+    $country = GetPaid_Geolocation::geolocate_ip($ip_address, true);
     return $country['country'];
 }
 
@@ -34,59 +34,59 @@ 
  * @param string $country The country code to sanitize
  * @return array
  */
-function wpinv_sanitize_country( $country ) {
+function wpinv_sanitize_country($country) {
 
 	// Enure the country is specified
-    if ( empty( $country ) ) {
+    if (empty($country)) {
         $country = wpinv_get_default_country();
     }
-    return trim( wpinv_utf8_strtoupper( $country ) );
+    return trim(wpinv_utf8_strtoupper($country));
 
 }
 
-function wpinv_is_base_country( $country ) {
+function wpinv_is_base_country($country) {
     $base_country = wpinv_get_default_country();
     
-    if ( $base_country === 'UK' ) {
+    if ($base_country === 'UK') {
         $base_country = 'GB';
     }
-    if ( $country == 'UK' ) {
+    if ($country == 'UK') {
         $country = 'GB';
     }
 
-    return ( $country && $country === $base_country ) ? true : false;
+    return ($country && $country === $base_country) ? true : false;
 }
 
-function wpinv_country_name( $country_code = '' ) { 
+function wpinv_country_name($country_code = '') { 
     $countries = wpinv_get_country_list();
     $country_code = $country_code == 'UK' ? 'GB' : $country_code;
-    $country = isset( $countries[$country_code] ) ? $countries[$country_code] : $country_code;
+    $country = isset($countries[$country_code]) ? $countries[$country_code] : $country_code;
 
-    return apply_filters( 'wpinv_country_name', $country, $country_code );
+    return apply_filters('wpinv_country_name', $country, $country_code);
 }
 
 function wpinv_get_default_state() {
-	$state = wpinv_get_option( 'default_state', '' );
+	$state = wpinv_get_option('default_state', '');
 
-	return apply_filters( 'wpinv_default_state', $state );
+	return apply_filters('wpinv_default_state', $state);
 }
 
-function wpinv_state_name( $state_code = '', $country_code = '' ) {
+function wpinv_state_name($state_code = '', $country_code = '') {
     $state = $state_code;
     
-    if ( !empty( $country_code ) ) {
-        $states = wpinv_get_country_states( $country_code );
+    if (!empty($country_code)) {
+        $states = wpinv_get_country_states($country_code);
         
-        $state = !empty( $states ) && isset( $states[$state_code] ) ? $states[$state_code] : $state;
+        $state = !empty($states) && isset($states[$state_code]) ? $states[$state_code] : $state;
     }
 
-    return apply_filters( 'wpinv_state_name', $state, $state_code, $country_code );
+    return apply_filters('wpinv_state_name', $state, $state_code, $country_code);
 }
 
 function wpinv_store_address() {
-    $address = wpinv_get_option( 'store_address', '' );
+    $address = wpinv_get_option('store_address', '');
 
-    return apply_filters( 'wpinv_store_address', $address );
+    return apply_filters('wpinv_store_address', $address);
 }
 
 /**
@@ -94,24 +94,24 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_maybe_add_default_address( &$invoice ) {
+function getpaid_maybe_add_default_address(&$invoice) {
 
     $user_id = $invoice->get_user_id();
 
     // Abort if the invoice belongs to no one.
-    if ( empty( $user_id ) ) {
+    if (empty($user_id)) {
         return;
     }
 
     // Fill in defaults whenever necessary.
-    foreach ( wpinv_get_user_address( $user_id ) as $key => $value ) {
+    foreach (wpinv_get_user_address($user_id) as $key => $value) {
 
-        if ( is_callable( $invoice, "get_$key" ) ) {
-            $current = call_user_func( array( $invoice, "get_$key" ) );
+        if (is_callable($invoice, "get_$key")) {
+            $current = call_user_func(array($invoice, "get_$key"));
 
-            if ( empty( $current ) ) {
+            if (empty($current)) {
                 $method = "set_$key";
-                $invoice->$method( $value );
+                $invoice->$method($value);
             }
 
         }
@@ -130,16 +130,16 @@ 
     return apply_filters(
         'getpaid_user_address_fields',
         array(
-            'first_name' => __( 'First Name', 'invoicing' ),
-            'last_name'  => __( 'Last Name', 'invoicing' ),
-            'country'    => __( 'Country', 'invoicing' ),
-            'state'      => __( 'State', 'invoicing' ),
-            'city'       => __( 'City', 'invoicing' ),
-            'zip'        => __( 'Zip/Postal Code', 'invoicing' ),
-            'address'    => __( 'Address', 'invoicing' ),
-            'phone'      => __( 'Phone Number', 'invoicing' ),
-            'company'    => __( 'Company', 'invoicing' ),
-            'vat_number' => __( 'VAT Number', 'invoicing' ),
+            'first_name' => __('First Name', 'invoicing'),
+            'last_name'  => __('Last Name', 'invoicing'),
+            'country'    => __('Country', 'invoicing'),
+            'state'      => __('State', 'invoicing'),
+            'city'       => __('City', 'invoicing'),
+            'zip'        => __('Zip/Postal Code', 'invoicing'),
+            'address'    => __('Address', 'invoicing'),
+            'phone'      => __('Phone Number', 'invoicing'),
+            'company'    => __('Company', 'invoicing'),
+            'vat_number' => __('VAT Number', 'invoicing'),
         )
     );
 
@@ -150,8 +150,8 @@ 
  * 
  * @return bool
  */
-function getpaid_is_address_field_whitelisted( $key ) {
-    return array_key_exists( $key, getpaid_user_address_fields() );
+function getpaid_is_address_field_whitelisted($key) {
+    return array_key_exists($key, getpaid_user_address_fields());
 }
 
 /**
@@ -161,24 +161,24 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_save_invoice_user_address( $invoice ) {
+function getpaid_save_invoice_user_address($invoice) {
 
     // Retrieve the invoice.
-    $invoice = wpinv_get_invoice( $invoice );
+    $invoice = wpinv_get_invoice($invoice);
 
     // Abort if it does not exist.
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return;
     }
 
-    foreach ( array_keys( getpaid_user_address_fields() ) as $field ) {
+    foreach (array_keys(getpaid_user_address_fields()) as $field) {
 
-        if ( is_callable( array( $invoice, "get_$field" ) ) ) {
-            $value = call_user_func( array( $invoice, "get_$field" ) );
+        if (is_callable(array($invoice, "get_$field"))) {
+            $value = call_user_func(array($invoice, "get_$field"));
 
             // Only save if it is not empty.
-            if ( ! empty( $value ) ) {
-                update_user_meta( $invoice->get_user_id(), '_wpinv_' . $field, $value );
+            if (!empty($value)) {
+                update_user_meta($invoice->get_user_id(), '_wpinv_' . $field, $value);
             }
 
         }
@@ -186,8 +186,8 @@ 
     }
 
 }
-add_action( 'getpaid_new_invoice', 'getpaid_save_invoice_user_address' );
-add_action( 'getpaid_update_invoice', 'getpaid_save_invoice_user_address' );
+add_action('getpaid_new_invoice', 'getpaid_save_invoice_user_address');
+add_action('getpaid_update_invoice', 'getpaid_save_invoice_user_address');
 
 /**
  * Retrieves a saved user address.
@@ -196,14 +196,14 @@ 
  * @param bool $with_default Whether or not we should use the default country and state.
  * @return array
  */
-function wpinv_get_user_address( $user_id = 0, $with_default = true ) {
+function wpinv_get_user_address($user_id = 0, $with_default = true) {
 
     // Prepare the user id.
-    $user_id   = empty( $user_id ) ? get_current_user_id() : $user_id;
-    $user_info = get_userdata( $user_id );
+    $user_id   = empty($user_id) ? get_current_user_id() : $user_id;
+    $user_info = get_userdata($user_id);
 
     // Abort if non exists.
-    if ( empty( $user_info ) ) {
+    if (empty($user_info)) {
         return array();
     }
 
@@ -213,11 +213,11 @@ 
         'email'   => $user_info->user_email,
     );
 
-    foreach ( array_keys( getpaid_user_address_fields() ) as $field ) {
-        $address[$field] = getpaid_get_user_address_field( $user_id, $field );
+    foreach (array_keys(getpaid_user_address_fields()) as $field) {
+        $address[$field] = getpaid_get_user_address_field($user_id, $field);
     }
 
-    if ( ! $with_default ) {
+    if (!$with_default) {
         return $address;
     }
 
@@ -228,7 +228,7 @@ 
         'state'      => wpinv_get_default_country(),
     );
 
-    return getpaid_array_merge_if_empty( $address, $defaults );
+    return getpaid_array_merge_if_empty($address, $defaults);
 
 }
 
@@ -239,7 +239,7 @@ 
  * @param string $field The field to use.
  * @return string|null
  */
-function getpaid_get_user_address_field( $user_id, $field ) {
+function getpaid_get_user_address_field($user_id, $field) {
 
     $prefixes = array(
         '_wpinv_',
@@ -247,15 +247,15 @@ 
         ''
     );
 
-    foreach ( $prefixes as $prefix ) {
+    foreach ($prefixes as $prefix) {
 
         // Meta table.
-        $value = get_user_meta( $user_id, $prefix . $field, true );
+        $value = get_user_meta($user_id, $prefix . $field, true);
         
         // UWP table.
-        $value = ( empty( $value ) && function_exists( 'uwp_get_usermeta' ) ) ? uwp_get_usermeta( $user_id, $prefix . $field ) : $value;
+        $value = (empty($value) && function_exists('uwp_get_usermeta')) ? uwp_get_usermeta($user_id, $prefix . $field) : $value;
 
-        if ( ! empty( $value ) ) {
+        if (!empty($value)) {
             return $value;
         }
 
@@ -272,16 +272,16 @@ 
  * @param string $return What to return.
  * @return array
  */
-function wpinv_get_continents( $return = 'all' ) {
+function wpinv_get_continents($return = 'all') {
 
-    $continents = wpinv_get_data( 'continents' );
+    $continents = wpinv_get_data('continents');
 
-    switch( $return ) {
+    switch ($return) {
         case 'name' :
-            return wp_list_pluck( $continents, 'name' );
+            return wp_list_pluck($continents, 'name');
             break;
         case 'countries' :
-            return wp_list_pluck( $continents, 'countries' );
+            return wp_list_pluck($continents, 'countries');
             break;
         default :
             return $continents;
@@ -297,12 +297,12 @@ 
  * @param string $country Country code. If no code is specified, defaults to the default country.
  * @return string
  */
-function wpinv_get_continent_code_for_country( $country = false ) {
+function wpinv_get_continent_code_for_country($country = false) {
 
-    $country = wpinv_sanitize_country( $country );
+    $country = wpinv_sanitize_country($country);
     
-	foreach ( wpinv_get_continents( 'countries' ) as $continent_code => $countries ) {
-		if ( false !== array_search( $country, $countries, true ) ) {
+	foreach (wpinv_get_continents('countries') as $continent_code => $countries) {
+		if (false !== array_search($country, $countries, true)) {
 			return $continent_code;
 		}
 	}
@@ -318,13 +318,13 @@ 
  * @param string $country Country code. If no code is specified, defaults to the default country.
  * @return array
  */
-function wpinv_get_country_calling_code( $country = null) {
+function wpinv_get_country_calling_code($country = null) {
 
-    $country = wpinv_sanitize_country( $country );
-    $codes   = wpinv_get_data( 'phone-codes' );
-    $code    = isset( $codes[ $country ] ) ? $codes[ $country ] : '';
+    $country = wpinv_sanitize_country($country);
+    $codes   = wpinv_get_data('phone-codes');
+    $code    = isset($codes[$country]) ? $codes[$country] : '';
 
-    if ( is_array( $code ) ) {
+    if (is_array($code)) {
         return $code[0];
     }
     return $code;
@@ -337,8 +337,8 @@ 
  * @param bool $first_empty Whether or not the first item in the list should be empty
  * @return array
  */
-function wpinv_get_country_list( $first_empty = false ) {
-    return wpinv_maybe_add_empty_option( apply_filters( 'wpinv_countries', wpinv_get_data( 'countries' ) ), $first_empty );
+function wpinv_get_country_list($first_empty = false) {
+    return wpinv_maybe_add_empty_option(apply_filters('wpinv_countries', wpinv_get_data('countries')), $first_empty);
 }
 
 /**
@@ -348,22 +348,22 @@ 
  * @param bool $first_empty Whether or not the first item in the list should be empty
  * @return array
  */
-function wpinv_get_country_states( $country = null, $first_empty = false ) {
+function wpinv_get_country_states($country = null, $first_empty = false) {
     
     // Prepare the country.
-    $country = wpinv_sanitize_country( $country );
+    $country = wpinv_sanitize_country($country);
 
     // Fetch all states.
-    $all_states = wpinv_get_data( 'states' );
+    $all_states = wpinv_get_data('states');
 
     // Fetch the specified country's states.
-    $states     = isset( $all_states[ $country ] ) ? $all_states[ $country ] : array() ;
-    $states     = apply_filters( "wpinv_{$country}_states", $states );
-    $states     = apply_filters( 'wpinv_country_states', $states, $country );
+    $states     = isset($all_states[$country]) ? $all_states[$country] : array();
+    $states     = apply_filters("wpinv_{$country}_states", $states);
+    $states     = apply_filters('wpinv_country_states', $states, $country);
 
-    asort( $states );
+    asort($states);
      
-    return wpinv_maybe_add_empty_option( $states, $first_empty );
+    return wpinv_maybe_add_empty_option($states, $first_empty);
 }
 
 /**
@@ -373,7 +373,7 @@ 
  * @return array
  */
 function wpinv_get_us_states_list() {
-    return apply_filters( 'wpinv_usa_states', wpinv_get_country_states( 'US' ) );
+    return apply_filters('wpinv_usa_states', wpinv_get_country_states('US'));
 }
 
 /**
@@ -383,7 +383,7 @@ 
  * @return array
  */
 function wpinv_get_canada_states_list() {
-    return apply_filters( 'wpinv_canada_provinces', wpinv_get_country_states( 'CA' ) );
+    return apply_filters('wpinv_canada_provinces', wpinv_get_country_states('CA'));
 }
 
 /**
@@ -393,7 +393,7 @@ 
  * @return array
  */
 function wpinv_get_australia_states_list() {
-    return apply_filters( 'wpinv_australia_states', wpinv_get_country_states( 'AU' ) );
+    return apply_filters('wpinv_australia_states', wpinv_get_country_states('AU'));
 }
 
 /**
@@ -403,7 +403,7 @@ 
  * @return array
  */
 function wpinv_get_bangladesh_states_list() {
-    return apply_filters( 'wpinv_bangladesh_states', wpinv_get_country_states( 'BD' ) );
+    return apply_filters('wpinv_bangladesh_states', wpinv_get_country_states('BD'));
 }
 
 /**
@@ -413,7 +413,7 @@ 
  * @return array
  */
 function wpinv_get_brazil_states_list() {
-    return apply_filters( 'wpinv_brazil_states', wpinv_get_country_states( 'BR' ) );
+    return apply_filters('wpinv_brazil_states', wpinv_get_country_states('BR'));
 }
 
 /**
@@ -423,7 +423,7 @@ 
  * @return array
  */
 function wpinv_get_bulgaria_states_list() {
-    return apply_filters( 'wpinv_bulgaria_states', wpinv_get_country_states( 'BG' ) );
+    return apply_filters('wpinv_bulgaria_states', wpinv_get_country_states('BG'));
 }
 
 /**
@@ -433,7 +433,7 @@ 
  * @return array
  */
 function wpinv_get_hong_kong_states_list() {
-    return apply_filters( 'wpinv_hong_kong_states', wpinv_get_country_states( 'HK' ) );
+    return apply_filters('wpinv_hong_kong_states', wpinv_get_country_states('HK'));
 }
 
 /**
@@ -443,7 +443,7 @@ 
  * @return array
  */
 function wpinv_get_hungary_states_list() {
-    return apply_filters( 'wpinv_hungary_states', wpinv_get_country_states( 'HU' ) );
+    return apply_filters('wpinv_hungary_states', wpinv_get_country_states('HU'));
 }
 
 /**
@@ -453,7 +453,7 @@ 
  * @return array
  */
 function wpinv_get_japan_states_list() {
-    return apply_filters( 'wpinv_japan_states', wpinv_get_country_states( 'JP' ) );
+    return apply_filters('wpinv_japan_states', wpinv_get_country_states('JP'));
 }
 
 /**
@@ -463,7 +463,7 @@ 
  * @return array
  */
 function wpinv_get_china_states_list() {
-    return apply_filters( 'wpinv_china_states', wpinv_get_country_states( 'CN' ) );
+    return apply_filters('wpinv_china_states', wpinv_get_country_states('CN'));
 }
 
 /**
@@ -473,7 +473,7 @@ 
  * @return array
  */
 function wpinv_get_new_zealand_states_list() {
-    return apply_filters( 'wpinv_new_zealand_states', wpinv_get_country_states( 'NZ' ) );
+    return apply_filters('wpinv_new_zealand_states', wpinv_get_country_states('NZ'));
 }
 
 /**
@@ -483,7 +483,7 @@ 
  * @return array
  */
 function wpinv_get_peru_states_list() {
-    return apply_filters( 'wpinv_peru_states', wpinv_get_country_states( 'PE' ) );
+    return apply_filters('wpinv_peru_states', wpinv_get_country_states('PE'));
 }
 
 /**
@@ -493,7 +493,7 @@ 
  * @return array
  */
 function wpinv_get_indonesia_states_list() {
-    return apply_filters( 'wpinv_indonesia_states', wpinv_get_country_states( 'ID' ) );
+    return apply_filters('wpinv_indonesia_states', wpinv_get_country_states('ID'));
 }
 
 /**
@@ -503,7 +503,7 @@ 
  * @return array
  */
 function wpinv_get_india_states_list() {
-    return apply_filters( 'wpinv_india_states', wpinv_get_country_states( 'IN' ) );
+    return apply_filters('wpinv_india_states', wpinv_get_country_states('IN'));
 }
 
 /**
@@ -513,7 +513,7 @@ 
  * @return array
  */
 function wpinv_get_iran_states_list() {
-    return apply_filters( 'wpinv_iran_states', wpinv_get_country_states( 'IR' ) );
+    return apply_filters('wpinv_iran_states', wpinv_get_country_states('IR'));
 }
 
 /**
@@ -523,7 +523,7 @@ 
  * @return array
  */
 function wpinv_get_italy_states_list() {
-    return apply_filters( 'wpinv_italy_states', wpinv_get_country_states( 'IT' ) );
+    return apply_filters('wpinv_italy_states', wpinv_get_country_states('IT'));
 }
 
 /**
@@ -533,7 +533,7 @@ 
  * @return array
  */
 function wpinv_get_malaysia_states_list() {
-    return apply_filters( 'wpinv_malaysia_states', wpinv_get_country_states( 'MY' ) );
+    return apply_filters('wpinv_malaysia_states', wpinv_get_country_states('MY'));
 }
 
 /**
@@ -543,7 +543,7 @@ 
  * @return array
  */
 function wpinv_get_mexico_states_list() {
-    return apply_filters( 'wpinv_mexico_states', wpinv_get_country_states( 'MX' ) );
+    return apply_filters('wpinv_mexico_states', wpinv_get_country_states('MX'));
 }
 
 /**
@@ -553,7 +553,7 @@ 
  * @return array
  */
 function wpinv_get_nepal_states_list() {
-    return apply_filters( 'wpinv_nepal_states', wpinv_get_country_states( 'NP' ) );
+    return apply_filters('wpinv_nepal_states', wpinv_get_country_states('NP'));
 }
 
 /**
@@ -563,7 +563,7 @@ 
  * @return array
  */
 function wpinv_get_south_africa_states_list() {
-    return apply_filters( 'wpinv_south_africa_states', wpinv_get_country_states( 'ZA' ) );
+    return apply_filters('wpinv_south_africa_states', wpinv_get_country_states('ZA'));
 }
 
 /**
@@ -573,7 +573,7 @@ 
  * @return array
  */
 function wpinv_get_thailand_states_list() {
-    return apply_filters( 'wpinv_thailand_states', wpinv_get_country_states( 'TH' ) );
+    return apply_filters('wpinv_thailand_states', wpinv_get_country_states('TH'));
 }
 
 /**
@@ -583,7 +583,7 @@ 
  * @return array
  */
 function wpinv_get_turkey_states_list() {
-    return apply_filters( 'wpinv_turkey_states', wpinv_get_country_states( 'TR' ) );
+    return apply_filters('wpinv_turkey_states', wpinv_get_country_states('TR'));
 }
 
 /**
@@ -593,28 +593,28 @@ 
  * @return array
  */
 function wpinv_get_spain_states_list() {
-    return apply_filters( 'wpinv_spain_states', wpinv_get_country_states( 'ES' ) );
+    return apply_filters('wpinv_spain_states', wpinv_get_country_states('ES'));
 }
 
 function wpinv_get_states_field() {
-	if( empty( $_POST['country'] ) ) {
+	if (empty($_POST['country'])) {
 		$_POST['country'] = wpinv_get_default_country();
 	}
-	$states = wpinv_get_country_states( sanitize_text_field( $_POST['country'] ) );
+	$states = wpinv_get_country_states(sanitize_text_field($_POST['country']));
 
-	if( !empty( $states ) ) {
-		$sanitized_field_name = sanitize_text_field( $_POST['field_name'] );
+	if (!empty($states)) {
+		$sanitized_field_name = sanitize_text_field($_POST['field_name']);
         
         $args = array(
 			'name'    => $sanitized_field_name,
 			'id'      => $sanitized_field_name,
 			'class'   => $sanitized_field_name . 'custom-select wpinv-select wpi_select2',
-			'options' => array_merge( array( '' => '' ), $states ),
+			'options' => array_merge(array('' => ''), $states),
 			'show_option_all'  => false,
 			'show_option_none' => false
 		);
 
-		$response = wpinv_html_select( $args );
+		$response = wpinv_html_select($args);
 
 	} else {
 		$response = 'nostates';
@@ -623,10 +623,10 @@ 
 	return $response;
 }
 
-function wpinv_default_billing_country( $country = '', $user_id = 0 ) {
-    $country = !empty( $country ) ? $country : wpinv_get_default_country();
+function wpinv_default_billing_country($country = '', $user_id = 0) {
+    $country = !empty($country) ? $country : wpinv_get_default_country();
     
-    return apply_filters( 'wpinv_default_billing_country', $country, $user_id );
+    return apply_filters('wpinv_default_billing_country', $country, $user_id);
 }
 
 /**
@@ -638,7 +638,7 @@ 
  */
 function wpinv_get_address_formats() {
 
-		return apply_filters( 'wpinv_localisation_address_formats',
+		return apply_filters('wpinv_localisation_address_formats',
 			array(
 				'default' => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{state}}\n{{zip}}\n{{country}}",
 				'AU'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{state}} {{zip}}\n{{country}}",
@@ -687,9 +687,9 @@ 
  * @see `wpinv_get_invoice_address_replacements`
  * @return string
  */
-function wpinv_get_full_address_format( $country = false) {
+function wpinv_get_full_address_format($country = false) {
 
-    if( empty( $country ) ) {
+    if (empty($country)) {
         $country = wpinv_get_default_country();
     }
 
@@ -697,7 +697,7 @@ 
 	$formats = wpinv_get_address_formats();
 
 	// Get format for the specified country.
-	$format = ( $country && isset( $formats[ $country ] ) ) ? $formats[ $country ] : $formats['default'];
+	$format = ($country && isset($formats[$country])) ? $formats[$country] : $formats['default'];
     
     /**
 	 * Filters the address format to use on Invoices.
@@ -709,7 +709,7 @@ 
 	 * @param string $format  The address format to use.
      * @param string $country The country who's address format is being retrieved.
 	 */
-    return apply_filters( 'wpinv_get_full_address_format', $format, $country );
+    return apply_filters('wpinv_get_full_address_format', $format, $country);
 }
 
 /**
@@ -720,7 +720,7 @@ 
  * @param array $billing_details customer's billing details
  * @return array
  */
-function wpinv_get_invoice_address_replacements( $billing_details ) {
+function wpinv_get_invoice_address_replacements($billing_details) {
 
     $default_args = array(
         'address'           => '',
@@ -733,22 +733,22 @@ 
 		'company'           => '',
     );
 
-    $args    = map_deep( wp_parse_args( $billing_details, $default_args ), 'trim' );
+    $args    = map_deep(wp_parse_args($billing_details, $default_args), 'trim');
     $state   = $args['state'];
     $country = $args['country'];
 
     // Handle full country name.
-    $full_country = empty( $country ) ? $country : wpinv_country_name( $country );
+    $full_country = empty($country) ? $country : wpinv_country_name($country);
 
     // Handle full state name.
-    $full_state   = ( $country && $state ) ?  wpinv_state_name( $state, $country ) : $state;
+    $full_state   = ($country && $state) ?  wpinv_state_name($state, $country) : $state;
 
     $args['postcode']    = $args['zip'];
     $args['name']        = $args['first_name'] . ' ' . $args['last_name'];
     $args['state']       = $full_state;
     $args['state_code']  = $state;
     $args['country']     = $full_country;
-    $args['country_code']= $country;
+    $args['country_code'] = $country;
 
     /**
 	 * Filters the address format replacements to use on Invoices.
@@ -759,14 +759,14 @@ 
 	 * @param array $replacements  The address replacements to use.
      * @param array $billing_details  The billing details to use.
 	 */
-    $replacements = apply_filters( 'wpinv_get_invoice_address_replacements', $args, $billing_details );
+    $replacements = apply_filters('wpinv_get_invoice_address_replacements', $args, $billing_details);
 
     $return = array();
 
-    foreach( $replacements as $key => $value ) {
-        $value  = is_scalar( $value ) ? trim( sanitize_text_field( $value ) ) : '';
+    foreach ($replacements as $key => $value) {
+        $value = is_scalar($value) ? trim(sanitize_text_field($value)) : '';
         $return['{{' . $key . '}}'] = $value;
-        $return['{{' . $key . '_upper}}'] = wpinv_utf8_strtoupper( $value );
+        $return['{{' . $key . '_upper}}'] = wpinv_utf8_strtoupper($value);
     }
 
     return $return;
@@ -780,6 +780,6 @@ 
  * @since 1.0.14
  * @return string
  */
-function wpinv_trim_formatted_address_line( $line ) {
-	return trim( $line, ', ' );
+function wpinv_trim_formatted_address_line($line) {
+	return trim($line, ', ');
 }
\ No newline at end of file

includes/admin/meta-boxes/class-getpaid-meta-box-invoice-shipping-address.php

Spacing +16 added lines, -16 removed lines

@@ -6,7 +6,7 @@ 
  *
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
 	exit; // Exit if accessed directly
 }
 
@@ -20,13 +20,13 @@ 
 	 *
 	 * @param WP_Post $post
 	 */
-	public static function output( $post ) {
+	public static function output($post) {
 
 		// Retrieve shipping address.
-		$shipping_address = get_post_meta( $post->ID, 'shipping_address', true );
+		$shipping_address = get_post_meta($post->ID, 'shipping_address', true);
 
 		// Abort if it is invalid.
-		if ( ! is_array( $shipping_address ) ) {
+		if (!is_array($shipping_address)) {
 			return;
 		}
 
@@ -34,16 +34,16 @@ 
 
 		<div class="bsui">
 
-			<?php foreach ( getpaid_user_address_fields() as $key => $label ) : ?>
+			<?php foreach (getpaid_user_address_fields() as $key => $label) : ?>
 
-					<?php if ( ! empty( $shipping_address[ $key ] ) ) : ?>
+					<?php if (!empty($shipping_address[$key])) : ?>
 
 						<div class="form-group form-row">
 							<div class="col">
-								<span style="font-weight: 600"><?php echo sanitize_text_field( $label ); ?>:</span>
+								<span style="font-weight: 600"><?php echo sanitize_text_field($label); ?>:</span>
 							</div>
 							<div class="col">
-								<?php echo self::prepare_for_display( $shipping_address, $key ); ?>
+								<?php echo self::prepare_for_display($shipping_address, $key); ?>
 							</div>
 						</div>
 
@@ -64,21 +64,21 @@ 
 	 * @param string $key
 	 * @return string
 	 */
-	public static function prepare_for_display( $address, $key ) {
+	public static function prepare_for_display($address, $key) {
 
 		// Prepare the value.
-		$value = $address[ $key ];
+		$value = $address[$key];
 
-		if ( $key == 'country' ) {
-			$value = wpinv_country_name( $value );
+		if ($key == 'country') {
+			$value = wpinv_country_name($value);
 		}
 
-		if ( $key == 'state' ) {
-			$country = isset( $address[ 'country' ] ) ? $address[ 'country' ] : wpinv_get_default_country();
-			$value = wpinv_state_name( $value, $country );
+		if ($key == 'state') {
+			$country = isset($address['country']) ? $address['country'] : wpinv_get_default_country();
+			$value = wpinv_state_name($value, $country);
 		}
 
-		return sanitize_text_field( $value );
+		return sanitize_text_field($value);
 
 	}
 

includes/admin/class-getpaid-metaboxes.php

Spacing +53 added lines, -53 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Metaboxes Admin Class
@@ -25,36 +25,36 @@ 
 	public static function init() {
 
 		// Register metaboxes.
-		add_action( 'add_meta_boxes', 'GetPaid_Metaboxes::add_meta_boxes', 5, 2 );
+		add_action('add_meta_boxes', 'GetPaid_Metaboxes::add_meta_boxes', 5, 2);
 
 		// Remove metaboxes.
-		add_action( 'add_meta_boxes', 'GetPaid_Metaboxes::remove_meta_boxes', 30 );
+		add_action('add_meta_boxes', 'GetPaid_Metaboxes::remove_meta_boxes', 30);
 
 		// Rename metaboxes.
-		add_action( 'add_meta_boxes', 'GetPaid_Metaboxes::rename_meta_boxes', 45 );
+		add_action('add_meta_boxes', 'GetPaid_Metaboxes::rename_meta_boxes', 45);
 
 		// Save metaboxes.
-		add_action( 'save_post', 'GetPaid_Metaboxes::save_meta_boxes', 1, 2 );
+		add_action('save_post', 'GetPaid_Metaboxes::save_meta_boxes', 1, 2);
 	}
 
 	/**
 	 * Register core metaboxes.
 	 */
-	public static function add_meta_boxes( $post_type, $post ) {
+	public static function add_meta_boxes($post_type, $post) {
 		global $wpinv_euvat;
 
 		// For invoices...
-		if ( getpaid_is_invoice_post_type( $post_type ) ) {
-			$invoice = new WPInv_Invoice( $post );
+		if (getpaid_is_invoice_post_type($post_type)) {
+			$invoice = new WPInv_Invoice($post);
 
 			// Resend invoice.
-			if ( ! $invoice->is_draft() && ! $invoice->is_paid() ) {
+			if (!$invoice->is_draft() && !$invoice->is_paid()) {
 
 				add_meta_box(
 					'wpinv-mb-resend-invoice',
 					sprintf(
-						__( 'Resend %s', 'invoicing' ),
-						ucfirst( $invoice->get_type() )
+						__('Resend %s', 'invoicing'),
+						ucfirst($invoice->get_type())
 					),
 					'GetPaid_Meta_Box_Resend_Invoice::output',
 					$post_type,
@@ -65,18 +65,18 @@ 
 			}
 
 			// Subscriptions.
-			$subscription = getpaid_get_invoice_subscription( $invoice );
-			if ( ! empty( $subscription ) ) {
-				add_meta_box( 'wpinv-mb-subscriptions', __( 'Subscription Details', 'invoicing' ), 'GetPaid_Meta_Box_Invoice_Subscription::output', $post_type, 'advanced' );
-				add_meta_box( 'wpinv-mb-subscription-invoices', __( 'Related Payments', 'invoicing' ), 'GetPaid_Meta_Box_Invoice_Subscription::output_invoices', $post_type, 'advanced' );
+			$subscription = getpaid_get_invoice_subscription($invoice);
+			if (!empty($subscription)) {
+				add_meta_box('wpinv-mb-subscriptions', __('Subscription Details', 'invoicing'), 'GetPaid_Meta_Box_Invoice_Subscription::output', $post_type, 'advanced');
+				add_meta_box('wpinv-mb-subscription-invoices', __('Related Payments', 'invoicing'), 'GetPaid_Meta_Box_Invoice_Subscription::output_invoices', $post_type, 'advanced');
 			}
 
 			// Invoice details.
 			add_meta_box(
 				'wpinv-details',
 				sprintf(
-					__( '%s Details', 'invoicing' ),
-					ucfirst( $invoice->get_type() )
+					__('%s Details', 'invoicing'),
+					ucfirst($invoice->get_type())
 				),
 				'GetPaid_Meta_Box_Invoice_Details::output',
 				$post_type,
@@ -84,19 +84,19 @@ 
 			);
 
 			// Payment details.
-			if ( ! $invoice->is_draft() ) {
-				add_meta_box( 'wpinv-payment-meta', __( 'Payment Meta', 'invoicing' ), 'GetPaid_Meta_Box_Invoice_Payment_Meta::output', $post_type, 'side', 'default' );
+			if (!$invoice->is_draft()) {
+				add_meta_box('wpinv-payment-meta', __('Payment Meta', 'invoicing'), 'GetPaid_Meta_Box_Invoice_Payment_Meta::output', $post_type, 'side', 'default');
 			}
 
 			// Billing details.
-			add_meta_box( 'wpinv-address', __( 'Billing Details', 'invoicing' ), 'GetPaid_Meta_Box_Invoice_Address::output', $post_type, 'normal', 'high' );
+			add_meta_box('wpinv-address', __('Billing Details', 'invoicing'), 'GetPaid_Meta_Box_Invoice_Address::output', $post_type, 'normal', 'high');
 			
 			// Invoice items.
 			add_meta_box(
 				'wpinv-items',
 				sprintf(
-					__( '%s Items', 'invoicing' ),
-					ucfirst( $invoice->get_type() )
+					__('%s Items', 'invoicing'),
+					ucfirst($invoice->get_type())
 				),
 				'GetPaid_Meta_Box_Invoice_Items::output',
 				$post_type,
@@ -108,8 +108,8 @@ 
 			add_meta_box(
 				'wpinv-notes',
 				sprintf(
-					__( '%s Notes', 'invoicing' ),
-					ucfirst( $invoice->get_type() )
+					__('%s Notes', 'invoicing'),
+					ucfirst($invoice->get_type())
 				),
 				'WPInv_Meta_Box_Notes::output',
 				$post_type,
@@ -118,47 +118,47 @@ 
 			);
 
 			// Shipping Address.
-			if ( ! empty( $post->ID ) && get_post_meta( $post->ID, 'shipping_address', true ) ) {
-				add_meta_box( 'wpinv-invoice-shipping-details', __( 'Shipping Address', 'invoicing' ), 'GetPaid_Meta_Box_Invoice_Shipping_Address::output', $post_type, 'side', 'high' );
+			if (!empty($post->ID) && get_post_meta($post->ID, 'shipping_address', true)) {
+				add_meta_box('wpinv-invoice-shipping-details', __('Shipping Address', 'invoicing'), 'GetPaid_Meta_Box_Invoice_Shipping_Address::output', $post_type, 'side', 'high');
 			}
 
 			// Payment form information.
-			if ( ! empty( $post->ID ) && get_post_meta( $post->ID, 'payment_form_data', true ) ) {
-				add_meta_box( 'wpinv-invoice-payment-form-details', __( 'Payment Form Details', 'invoicing' ), 'WPInv_Meta_Box_Payment_Form::output_details', $post_type, 'side', 'high' );
+			if (!empty($post->ID) && get_post_meta($post->ID, 'payment_form_data', true)) {
+				add_meta_box('wpinv-invoice-payment-form-details', __('Payment Form Details', 'invoicing'), 'WPInv_Meta_Box_Payment_Form::output_details', $post_type, 'side', 'high');
 			}
 
 		}
 
 		// For payment forms.
-		if ( $post_type == 'wpi_payment_form' ) {
+		if ($post_type == 'wpi_payment_form') {
 
 			// Design payment form.
-			add_meta_box( 'wpinv-payment-form-design', __( 'Payment Form', 'invoicing' ), 'GetPaid_Meta_Box_Payment_Form::output', 'wpi_payment_form', 'normal' );
+			add_meta_box('wpinv-payment-form-design', __('Payment Form', 'invoicing'), 'GetPaid_Meta_Box_Payment_Form::output', 'wpi_payment_form', 'normal');
 
 			// Payment form information.
-			add_meta_box( 'wpinv-payment-form-info', __( 'Details', 'invoicing' ), 'GetPaid_Meta_Box_Payment_Form_Info::output', 'wpi_payment_form', 'side' );
+			add_meta_box('wpinv-payment-form-info', __('Details', 'invoicing'), 'GetPaid_Meta_Box_Payment_Form_Info::output', 'wpi_payment_form', 'side');
 
 		}
 
 		// For invoice items.
-		if ( $post_type == 'wpi_item' ) {
+		if ($post_type == 'wpi_item') {
 
 			// Item details.
-			add_meta_box( 'wpinv_item_details', __( 'Item Details', 'invoicing' ), 'GetPaid_Meta_Box_Item_Details::output', 'wpi_item', 'normal', 'high' );
+			add_meta_box('wpinv_item_details', __('Item Details', 'invoicing'), 'GetPaid_Meta_Box_Item_Details::output', 'wpi_item', 'normal', 'high');
 
 			// If taxes are enabled, register the tax metabox.
-			if ( $wpinv_euvat->allow_vat_rules() || $wpinv_euvat->allow_vat_classes() ) {
-				add_meta_box( 'wpinv_item_vat', __( 'VAT / Tax', 'invoicing' ), 'GetPaid_Meta_Box_Item_VAT::output', 'wpi_item', 'normal', 'high' );
+			if ($wpinv_euvat->allow_vat_rules() || $wpinv_euvat->allow_vat_classes()) {
+				add_meta_box('wpinv_item_vat', __('VAT / Tax', 'invoicing'), 'GetPaid_Meta_Box_Item_VAT::output', 'wpi_item', 'normal', 'high');
 			}
 
 			// Item info.
-			add_meta_box( 'wpinv_field_item_info', __( 'Item info', 'invoicing' ), 'GetPaid_Meta_Box_Item_Info::output', 'wpi_item', 'side', 'core' );
+			add_meta_box('wpinv_field_item_info', __('Item info', 'invoicing'), 'GetPaid_Meta_Box_Item_Info::output', 'wpi_item', 'side', 'core');
 
 		}
 
 		// For invoice discounts.
-		if ( $post_type == 'wpi_discount' ) {
-			add_meta_box( 'wpinv_discount_details', __( 'Discount Details', 'invoicing' ), 'GetPaid_Meta_Box_Discount_Details::output', 'wpi_discount', 'normal', 'high' );
+		if ($post_type == 'wpi_discount') {
+			add_meta_box('wpinv_discount_details', __('Discount Details', 'invoicing'), 'GetPaid_Meta_Box_Discount_Details::output', 'wpi_discount', 'normal', 'high');
 		}
 		
 
@@ -168,7 +168,7 @@ 
 	 * Remove some metaboxes.
 	 */
 	public static function remove_meta_boxes() {
-		remove_meta_box( 'wpseo_meta', 'wpi_invoice', 'normal' );
+		remove_meta_box('wpseo_meta', 'wpi_invoice', 'normal');
 	}
 
 	/**
@@ -184,46 +184,46 @@ 
 	 * @param  int    $post_id Post ID.
 	 * @param  object $post Post object.
 	 */
-	public static function save_meta_boxes( $post_id, $post ) {
-		$post_id = absint( $post_id );
-		$data    = wp_unslash( $_POST );
+	public static function save_meta_boxes($post_id, $post) {
+		$post_id = absint($post_id);
+		$data    = wp_unslash($_POST);
 
 		// Do not save for ajax requests.
-		if ( ( defined( 'DOING_AJAX') && DOING_AJAX ) || isset( $_REQUEST['bulk_edit'] ) ) {
+		if ((defined('DOING_AJAX') && DOING_AJAX) || isset($_REQUEST['bulk_edit'])) {
 			return;
 		}
 
 		// $post_id and $post are required
-		if ( empty( $post_id ) || empty( $post ) || self::$saved_meta_boxes ) {
+		if (empty($post_id) || empty($post) || self::$saved_meta_boxes) {
 			return;
 		}
 
 		// Dont' save meta boxes for revisions or autosaves.
-		if ( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) || is_int( wp_is_post_revision( $post ) ) || is_int( wp_is_post_autosave( $post ) ) ) {
+		if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || is_int(wp_is_post_revision($post)) || is_int(wp_is_post_autosave($post))) {
 			return;
 		}
 
 		// Check the nonce.
-		if ( empty( $data['getpaid_meta_nonce'] ) || ! wp_verify_nonce( $data['getpaid_meta_nonce'], 'getpaid_meta_nonce' ) ) {
+		if (empty($data['getpaid_meta_nonce']) || !wp_verify_nonce($data['getpaid_meta_nonce'], 'getpaid_meta_nonce')) {
 			return;
 		}
 
 		// Check the post being saved == the $post_id to prevent triggering this call for other save_post events.
-		if ( empty( $data['post_ID'] ) || absint( $data['post_ID'] ) !== $post_id ) {
+		if (empty($data['post_ID']) || absint($data['post_ID']) !== $post_id) {
 			return;
 		}
 
 		// Check user has permission to edit.
-		if ( ! current_user_can( 'edit_post', $post_id ) ) {
+		if (!current_user_can('edit_post', $post_id)) {
 			return;
 		}
 
-		if ( getpaid_is_invoice_post_type( $post->post_type ) ) {
+		if (getpaid_is_invoice_post_type($post->post_type)) {
 
 			// We need this save event to run once to avoid potential endless loops.
 			self::$saved_meta_boxes = true;
 
-			return GetPaid_Meta_Box_Invoice_Address::save( $post_id );
+			return GetPaid_Meta_Box_Invoice_Address::save($post_id);
 
 		}
 
@@ -235,7 +235,7 @@ 
 		);
 
 		// Is this our post type?
-		if ( ! isset( $post_types_map[ $post->post_type ] ) ) {
+		if (!isset($post_types_map[$post->post_type])) {
 			return;
 		}
 
@@ -243,8 +243,8 @@ 
 		self::$saved_meta_boxes = true;
 		
 		// Save the post.
-		$class = $post_types_map[ $post->post_type ];
-		$class::save( $post_id, $_POST, $post );
+		$class = $post_types_map[$post->post_type];
+		$class::save($post_id, $_POST, $post);
 
 	}
 

includes/wpinv-template-functions.php

Spacing +473 added lines, -473 removed lines

@@ -4,99 +4,99 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Displays an invoice.
  * 
  * @param WPInv_Invoice $invoice.
  */
-function getpaid_invoice( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/invoice.php', compact( 'invoice' ) );
+function getpaid_invoice($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/invoice.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice', 'getpaid_invoice', 10 );
+add_action('getpaid_invoice', 'getpaid_invoice', 10);
 
 /**
  * Displays the invoice footer.
  */
-function getpaid_invoice_footer( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/footer.php', compact( 'invoice' ) );
+function getpaid_invoice_footer($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/footer.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_footer', 'getpaid_invoice_footer', 10 );
+add_action('getpaid_invoice_footer', 'getpaid_invoice_footer', 10);
 
 /**
  * Displays the invoice top bar.
  */
-function getpaid_invoice_header( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/header.php', compact( 'invoice' ) );
+function getpaid_invoice_header($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/header.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_header', 'getpaid_invoice_header', 10 );
+add_action('getpaid_invoice_header', 'getpaid_invoice_header', 10);
 
 /**
  * Displays actions on the left side of the header.
  */
-function getpaid_invoice_header_left_actions( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/header-left-actions.php', compact( 'invoice' ) );
+function getpaid_invoice_header_left_actions($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/header-left-actions.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_header_left', 'getpaid_invoice_header_left_actions', 10 );
+add_action('getpaid_invoice_header_left', 'getpaid_invoice_header_left_actions', 10);
 
 /**
  * Displays actions on the right side of the invoice top bar.
  */
-function getpaid_invoice_header_right_actions( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/header-right-actions.php', compact( 'invoice' ) );
+function getpaid_invoice_header_right_actions($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/header-right-actions.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_header_right', 'getpaid_invoice_header_right_actions', 10 );
+add_action('getpaid_invoice_header_right', 'getpaid_invoice_header_right_actions', 10);
 
 /**
  * Displays the invoice title, watermark, logo etc.
  */
-function getpaid_invoice_details_top( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/details-top.php', compact( 'invoice' ) );
+function getpaid_invoice_details_top($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/details-top.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details', 'getpaid_invoice_details_top', 10 );
+add_action('getpaid_invoice_details', 'getpaid_invoice_details_top', 10);
 
 /**
  * Displays the company logo.
  */
-function getpaid_invoice_logo( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/invoice-logo.php', compact( 'invoice' ) );
+function getpaid_invoice_logo($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/invoice-logo.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details_top_left', 'getpaid_invoice_logo' );
+add_action('getpaid_invoice_details_top_left', 'getpaid_invoice_logo');
 
 /**
  * Displays the type of invoice.
  */
-function getpaid_invoice_type( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/invoice-type.php', compact( 'invoice' ) );
+function getpaid_invoice_type($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/invoice-type.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details_top_right', 'getpaid_invoice_type' );
+add_action('getpaid_invoice_details_top_right', 'getpaid_invoice_type');
 
 /**
  * Displays the invoice details.
  */
-function getpaid_invoice_details_main( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/details.php', compact( 'invoice' ) );
+function getpaid_invoice_details_main($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/details.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details', 'getpaid_invoice_details_main', 50 );
+add_action('getpaid_invoice_details', 'getpaid_invoice_details_main', 50);
 
 /**
  * Returns a path to the templates directory.
@@ -125,8 +125,8 @@ 
  * @param string $template_path The templates directory relative to the theme's root dir. Defaults to 'invoicing'.
  * @param string $default_path The root path to the default template. Defaults to invoicing/templates
  */
-function wpinv_get_template( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
-    return getpaid_template()->display_template( $template_name, $args, $template_path, $default_path );
+function wpinv_get_template($template_name, $args = array(), $template_path = '', $default_path = '') {
+    return getpaid_template()->display_template($template_name, $args, $template_path, $default_path);
 }
 
 /**
@@ -139,8 +139,8 @@ 
  * @param string $template_path The templates directory relative to the theme's root dir. Defaults to 'invoicing'.
  * @param string $default_path The root path to the default template. Defaults to invoicing/templates
  */
-function wpinv_get_template_html( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
-	return getpaid_template()->get_template( $template_name, $args, $template_path, $default_path );
+function wpinv_get_template_html($template_name, $args = array(), $template_path = '', $default_path = '') {
+	return getpaid_template()->get_template($template_name, $args, $template_path, $default_path);
 }
 
 /**
@@ -149,7 +149,7 @@ 
  * @return string
  */
 function wpinv_template_path() {
-    return apply_filters( 'wpinv_template_path', wpinv_get_theme_template_dir_name() );
+    return apply_filters('wpinv_template_path', wpinv_get_theme_template_dir_name());
 }
 
 /**
@@ -158,7 +158,7 @@ 
  * @return string
  */
 function wpinv_get_theme_template_dir_name() {
-	return trailingslashit( apply_filters( 'wpinv_templates_dir', 'invoicing' ) );
+	return trailingslashit(apply_filters('wpinv_templates_dir', 'invoicing'));
 }
 
 /**
@@ -170,56 +170,56 @@ 
  * @param string $template_path The template path relative to the theme's root dir. Defaults to 'invoicing'.
  * @param string $default_path The root path to the default template. Defaults to invoicing/templates
  */
-function wpinv_locate_template( $template_name, $template_path = '', $default_path = '' ) {
-    return getpaid_template()->locate_template( $template_name, $template_path, $default_path );
+function wpinv_locate_template($template_name, $template_path = '', $default_path = '') {
+    return getpaid_template()->locate_template($template_name, $template_path, $default_path);
 }
 
-function wpinv_get_template_part( $slug, $name = null, $load = true ) {
-	do_action( 'get_template_part_' . $slug, $slug, $name );
+function wpinv_get_template_part($slug, $name = null, $load = true) {
+	do_action('get_template_part_' . $slug, $slug, $name);
 
 	// Setup possible parts
 	$templates = array();
-	if ( isset( $name ) )
+	if (isset($name))
 		$templates[] = $slug . '-' . $name . '.php';
 	$templates[] = $slug . '.php';
 
 	// Allow template parts to be filtered
-	$templates = apply_filters( 'wpinv_get_template_part', $templates, $slug, $name );
+	$templates = apply_filters('wpinv_get_template_part', $templates, $slug, $name);
 
 	// Return the part that is found
-	return wpinv_locate_tmpl( $templates, $load, false );
+	return wpinv_locate_tmpl($templates, $load, false);
 }
 
-function wpinv_locate_tmpl( $template_names, $load = false, $require_once = true ) {
+function wpinv_locate_tmpl($template_names, $load = false, $require_once = true) {
 	// No file found yet
 	$located = false;
 
 	// Try to find a template file
-	foreach ( (array)$template_names as $template_name ) {
+	foreach ((array) $template_names as $template_name) {
 
 		// Continue if template is empty
-		if ( empty( $template_name ) )
+		if (empty($template_name))
 			continue;
 
 		// Trim off any slashes from the template name
-		$template_name = ltrim( $template_name, '/' );
+		$template_name = ltrim($template_name, '/');
 
 		// try locating this template file by looping through the template paths
-		foreach( wpinv_get_theme_template_paths() as $template_path ) {
+		foreach (wpinv_get_theme_template_paths() as $template_path) {
 
-			if( file_exists( $template_path . $template_name ) ) {
+			if (file_exists($template_path . $template_name)) {
 				$located = $template_path . $template_name;
 				break;
 			}
 		}
 
-		if( !empty( $located ) ) {
+		if (!empty($located)) {
 			break;
 		}
 	}
 
-	if ( ( true == $load ) && ! empty( $located ) )
-		load_template( $located, $require_once );
+	if ((true == $load) && !empty($located))
+		load_template($located, $require_once);
 
 	return $located;
 }
@@ -228,127 +228,127 @@ 
 	$template_dir = wpinv_get_theme_template_dir_name();
 
 	$file_paths = array(
-		1 => trailingslashit( get_stylesheet_directory() ) . $template_dir,
-		10 => trailingslashit( get_template_directory() ) . $template_dir,
+		1 => trailingslashit(get_stylesheet_directory()) . $template_dir,
+		10 => trailingslashit(get_template_directory()) . $template_dir,
 		100 => wpinv_get_templates_dir()
 	);
 
-	$file_paths = apply_filters( 'wpinv_template_paths', $file_paths );
+	$file_paths = apply_filters('wpinv_template_paths', $file_paths);
 
 	// sort the file paths based on priority
-	ksort( $file_paths, SORT_NUMERIC );
+	ksort($file_paths, SORT_NUMERIC);
 
-	return array_map( 'trailingslashit', $file_paths );
+	return array_map('trailingslashit', $file_paths);
 }
 
 function wpinv_checkout_meta_tags() {
 
 	$pages   = array();
-	$pages[] = wpinv_get_option( 'success_page' );
-	$pages[] = wpinv_get_option( 'failure_page' );
-	$pages[] = wpinv_get_option( 'invoice_history_page' );
-	$pages[] = wpinv_get_option( 'invoice_subscription_page' );
+	$pages[] = wpinv_get_option('success_page');
+	$pages[] = wpinv_get_option('failure_page');
+	$pages[] = wpinv_get_option('invoice_history_page');
+	$pages[] = wpinv_get_option('invoice_subscription_page');
 
-	if( !wpinv_is_checkout() && !is_page( $pages ) ) {
+	if (!wpinv_is_checkout() && !is_page($pages)) {
 		return;
 	}
 
 	echo '<meta name="robots" content="noindex,nofollow" />' . "\n";
 }
-add_action( 'wp_head', 'wpinv_checkout_meta_tags' );
+add_action('wp_head', 'wpinv_checkout_meta_tags');
 
-function wpinv_add_body_classes( $class ) {
-	$classes = (array)$class;
+function wpinv_add_body_classes($class) {
+	$classes = (array) $class;
 
-	if( wpinv_is_checkout() ) {
+	if (wpinv_is_checkout()) {
 		$classes[] = 'wpinv-checkout';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_success_page() ) {
+	if (wpinv_is_success_page()) {
 		$classes[] = 'wpinv-success';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_failed_transaction_page() ) {
+	if (wpinv_is_failed_transaction_page()) {
 		$classes[] = 'wpinv-failed-transaction';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_invoice_history_page() ) {
+	if (wpinv_is_invoice_history_page()) {
 		$classes[] = 'wpinv-history';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_subscriptions_history_page() ) {
+	if (wpinv_is_subscriptions_history_page()) {
 		$classes[] = 'wpinv-subscription';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_test_mode() ) {
+	if (wpinv_is_test_mode()) {
 		$classes[] = 'wpinv-test-mode';
 		$classes[] = 'wpinv-page';
 	}
 
-	return array_unique( $classes );
+	return array_unique($classes);
 }
-add_filter( 'body_class', 'wpinv_add_body_classes' );
+add_filter('body_class', 'wpinv_add_body_classes');
 
-function wpinv_html_year_dropdown( $name = 'year', $selected = 0, $years_before = 5, $years_after = 0 ) {
-    $current     = date( 'Y' );
-    $start_year  = $current - absint( $years_before );
-    $end_year    = $current + absint( $years_after );
-    $selected    = empty( $selected ) ? date( 'Y' ) : $selected;
+function wpinv_html_year_dropdown($name = 'year', $selected = 0, $years_before = 5, $years_after = 0) {
+    $current     = date('Y');
+    $start_year  = $current - absint($years_before);
+    $end_year    = $current + absint($years_after);
+    $selected    = empty($selected) ? date('Y') : $selected;
     $options     = array();
 
-    while ( $start_year <= $end_year ) {
-        $options[ absint( $start_year ) ] = $start_year;
+    while ($start_year <= $end_year) {
+        $options[absint($start_year)] = $start_year;
         $start_year++;
     }
 
-    $output = wpinv_html_select( array(
+    $output = wpinv_html_select(array(
         'name'             => $name,
         'selected'         => $selected,
         'options'          => $options,
         'show_option_all'  => false,
         'show_option_none' => false
-    ) );
+    ));
 
     return $output;
 }
 
-function wpinv_html_month_dropdown( $name = 'month', $selected = 0 ) {
+function wpinv_html_month_dropdown($name = 'month', $selected = 0) {
 
     $options = array(
-        '1'  => __( 'January', 'invoicing' ),
-        '2'  => __( 'February', 'invoicing' ),
-        '3'  => __( 'March', 'invoicing' ),
-        '4'  => __( 'April', 'invoicing' ),
-        '5'  => __( 'May', 'invoicing' ),
-        '6'  => __( 'June', 'invoicing' ),
-        '7'  => __( 'July', 'invoicing' ),
-        '8'  => __( 'August', 'invoicing' ),
-        '9'  => __( 'September', 'invoicing' ),
-        '10' => __( 'October', 'invoicing' ),
-        '11' => __( 'November', 'invoicing' ),
-        '12' => __( 'December', 'invoicing' ),
+        '1'  => __('January', 'invoicing'),
+        '2'  => __('February', 'invoicing'),
+        '3'  => __('March', 'invoicing'),
+        '4'  => __('April', 'invoicing'),
+        '5'  => __('May', 'invoicing'),
+        '6'  => __('June', 'invoicing'),
+        '7'  => __('July', 'invoicing'),
+        '8'  => __('August', 'invoicing'),
+        '9'  => __('September', 'invoicing'),
+        '10' => __('October', 'invoicing'),
+        '11' => __('November', 'invoicing'),
+        '12' => __('December', 'invoicing'),
     );
 
     // If no month is selected, default to the current month
-    $selected = empty( $selected ) ? date( 'n' ) : $selected;
+    $selected = empty($selected) ? date('n') : $selected;
 
-    $output = wpinv_html_select( array(
+    $output = wpinv_html_select(array(
         'name'             => $name,
         'selected'         => $selected,
         'options'          => $options,
         'show_option_all'  => false,
         'show_option_none' => false
-    ) );
+    ));
 
     return $output;
 }
 
-function wpinv_html_select( $args = array() ) {
+function wpinv_html_select($args = array()) {
     $defaults = array(
         'options'          => array(),
         'name'             => null,
@@ -357,8 +357,8 @@ 
         'selected'         => 0,
         'placeholder'      => null,
         'multiple'         => false,
-        'show_option_all'  => _x( 'All', 'all dropdown items', 'invoicing' ),
-        'show_option_none' => _x( 'None', 'no dropdown items', 'invoicing' ),
+        'show_option_all'  => _x('All', 'all dropdown items', 'invoicing'),
+        'show_option_none' => _x('None', 'no dropdown items', 'invoicing'),
         'data'             => array(),
         'onchange'         => null,
         'required'         => false,
@@ -366,74 +366,74 @@ 
         'readonly'         => false,
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
     $data_elements = '';
-    foreach ( $args['data'] as $key => $value ) {
-        $data_elements .= ' data-' . esc_attr( $key ) . '="' . esc_attr( $value ) . '"';
+    foreach ($args['data'] as $key => $value) {
+        $data_elements .= ' data-' . esc_attr($key) . '="' . esc_attr($value) . '"';
     }
 
-    if( $args['multiple'] ) {
+    if ($args['multiple']) {
         $multiple = ' MULTIPLE';
     } else {
         $multiple = '';
     }
 
-    if( $args['placeholder'] ) {
+    if ($args['placeholder']) {
         $placeholder = $args['placeholder'];
     } else {
         $placeholder = '';
     }
     
     $options = '';
-    if( !empty( $args['onchange'] ) ) {
-        $options .= ' onchange="' . esc_attr( $args['onchange'] ) . '"';
+    if (!empty($args['onchange'])) {
+        $options .= ' onchange="' . esc_attr($args['onchange']) . '"';
     }
     
-    if( !empty( $args['required'] ) ) {
+    if (!empty($args['required'])) {
         $options .= ' required="required"';
     }
     
-    if( !empty( $args['disabled'] ) ) {
+    if (!empty($args['disabled'])) {
         $options .= ' disabled';
     }
     
-    if( !empty( $args['readonly'] ) ) {
+    if (!empty($args['readonly'])) {
         $options .= ' readonly';
     }
 
-    $class  = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
-    $output = '<select name="' . esc_attr( $args['name'] ) . '" id="' . esc_attr( $args['id'] ) . '" class="wpinv-select ' . $class . '"' . $multiple . ' data-placeholder="' . $placeholder . '" ' . trim( $options ) . $data_elements . '>';
+    $class  = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
+    $output = '<select name="' . esc_attr($args['name']) . '" id="' . esc_attr($args['id']) . '" class="wpinv-select ' . $class . '"' . $multiple . ' data-placeholder="' . $placeholder . '" ' . trim($options) . $data_elements . '>';
 
-    if ( $args['show_option_all'] ) {
-        if( $args['multiple'] ) {
-            $selected = selected( true, in_array( 0, $args['selected'] ), false );
+    if ($args['show_option_all']) {
+        if ($args['multiple']) {
+            $selected = selected(true, in_array(0, $args['selected']), false);
         } else {
-            $selected = selected( $args['selected'], 0, false );
+            $selected = selected($args['selected'], 0, false);
         }
-        $output .= '<option value="all"' . $selected . '>' . esc_html( $args['show_option_all'] ) . '</option>';
+        $output .= '<option value="all"' . $selected . '>' . esc_html($args['show_option_all']) . '</option>';
     }
 
-    if ( !empty( $args['options'] ) ) {
+    if (!empty($args['options'])) {
 
-        if ( $args['show_option_none'] ) {
-            if( $args['multiple'] ) {
-                $selected = selected( true, in_array( "", $args['selected'] ), false );
+        if ($args['show_option_none']) {
+            if ($args['multiple']) {
+                $selected = selected(true, in_array("", $args['selected']), false);
             } else {
-                $selected = selected( $args['selected'] === "", true, false );
+                $selected = selected($args['selected'] === "", true, false);
             }
-            $output .= '<option value=""' . $selected . '>' . esc_html( $args['show_option_none'] ) . '</option>';
+            $output .= '<option value=""' . $selected . '>' . esc_html($args['show_option_none']) . '</option>';
         }
 
-        foreach( $args['options'] as $key => $option ) {
+        foreach ($args['options'] as $key => $option) {
 
-            if( $args['multiple'] && is_array( $args['selected'] ) ) {
-                $selected = selected( true, (bool)in_array( $key, $args['selected'] ), false );
+            if ($args['multiple'] && is_array($args['selected'])) {
+                $selected = selected(true, (bool) in_array($key, $args['selected']), false);
             } else {
-                $selected = selected( $args['selected'], $key, false );
+                $selected = selected($args['selected'], $key, false);
             }
 
-            $output .= '<option value="' . esc_attr( $key ) . '"' . $selected . '>' . esc_html( $option ) . '</option>';
+            $output .= '<option value="' . esc_attr($key) . '"' . $selected . '>' . esc_html($option) . '</option>';
         }
     }
 
@@ -442,7 +442,7 @@ 
     return $output;
 }
 
-function wpinv_item_dropdown( $args = array() ) {
+function wpinv_item_dropdown($args = array()) {
     $defaults = array(
         'name'              => 'wpi_item',
         'id'                => 'wpi_item',
@@ -450,14 +450,14 @@ 
         'multiple'          => false,
         'selected'          => 0,
         'number'            => 100,
-        'placeholder'       => __( 'Choose a item', 'invoicing' ),
-        'data'              => array( 'search-type' => 'item' ),
+        'placeholder'       => __('Choose a item', 'invoicing'),
+        'data'              => array('search-type' => 'item'),
         'show_option_all'   => false,
         'show_option_none'  => false,
         'show_recurring'    => false,
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
     $item_args = array(
         'post_type'      => 'wpi_item',
@@ -466,44 +466,44 @@ 
         'posts_per_page' => $args['number']
     );
 
-    $item_args  = apply_filters( 'wpinv_item_dropdown_query_args', $item_args, $args, $defaults );
+    $item_args  = apply_filters('wpinv_item_dropdown_query_args', $item_args, $args, $defaults);
 
-    $items      = get_posts( $item_args );
+    $items      = get_posts($item_args);
     $options    = array();
-    if ( $items ) {
-        foreach ( $items as $item ) {
-            $title = esc_html( $item->post_title );
+    if ($items) {
+        foreach ($items as $item) {
+            $title = esc_html($item->post_title);
             
-            if ( !empty( $args['show_recurring'] ) ) {
-                $title .= wpinv_get_item_suffix( $item->ID, false );
+            if (!empty($args['show_recurring'])) {
+                $title .= wpinv_get_item_suffix($item->ID, false);
             }
             
-            $options[ absint( $item->ID ) ] = $title;
+            $options[absint($item->ID)] = $title;
         }
     }
 
     // This ensures that any selected items are included in the drop down
-    if( is_array( $args['selected'] ) ) {
-        foreach( $args['selected'] as $item ) {
-            if( ! in_array( $item, $options ) ) {
-                $title = get_the_title( $item );
-                if ( !empty( $args['show_recurring'] ) ) {
-                    $title .= wpinv_get_item_suffix( $item, false );
+    if (is_array($args['selected'])) {
+        foreach ($args['selected'] as $item) {
+            if (!in_array($item, $options)) {
+                $title = get_the_title($item);
+                if (!empty($args['show_recurring'])) {
+                    $title .= wpinv_get_item_suffix($item, false);
                 }
                 $options[$item] = $title;
             }
         }
-    } elseif ( is_numeric( $args['selected'] ) && $args['selected'] !== 0 ) {
-        if ( ! in_array( $args['selected'], $options ) ) {
-            $title = get_the_title( $args['selected'] );
-            if ( !empty( $args['show_recurring'] ) ) {
-                $title .= wpinv_get_item_suffix( $args['selected'], false );
+    } elseif (is_numeric($args['selected']) && $args['selected'] !== 0) {
+        if (!in_array($args['selected'], $options)) {
+            $title = get_the_title($args['selected']);
+            if (!empty($args['show_recurring'])) {
+                $title .= wpinv_get_item_suffix($args['selected'], false);
             }
-            $options[$args['selected']] = get_the_title( $args['selected'] );
+            $options[$args['selected']] = get_the_title($args['selected']);
         }
     }
 
-    $output = wpinv_html_select( array(
+    $output = wpinv_html_select(array(
         'name'             => $args['name'],
         'selected'         => $args['selected'],
         'id'               => $args['id'],
@@ -514,7 +514,7 @@ 
         'show_option_all'  => $args['show_option_all'],
         'show_option_none' => $args['show_option_none'],
         'data'             => $args['data'],
-    ) );
+    ));
 
     return $output;
 }
@@ -534,16 +534,16 @@ 
     );
 
     $options = array();
-    if ( $items ) {
-        foreach ( $items as $item ) {
-            $options[ $item->ID ] = esc_html( $item->post_title ) . wpinv_get_item_suffix( $item->ID, false );
+    if ($items) {
+        foreach ($items as $item) {
+            $options[$item->ID] = esc_html($item->post_title) . wpinv_get_item_suffix($item->ID, false);
         }
     }
 
     return $options;
 }
 
-function wpinv_html_checkbox( $args = array() ) {
+function wpinv_html_checkbox($args = array()) {
     $defaults = array(
         'name'     => null,
         'current'  => null,
@@ -554,17 +554,17 @@ 
         )
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    $class = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
+    $class = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
     $options = '';
-    if ( ! empty( $args['options']['disabled'] ) ) {
+    if (!empty($args['options']['disabled'])) {
         $options .= ' disabled="disabled"';
-    } elseif ( ! empty( $args['options']['readonly'] ) ) {
+    } elseif (!empty($args['options']['readonly'])) {
         $options .= ' readonly';
     }
 
-    $output = '<input type="checkbox"' . $options . ' name="' . esc_attr( $args['name'] ) . '" id="' . esc_attr( $args['name'] ) . '" class="' . $class . ' ' . esc_attr( $args['name'] ) . '" ' . checked( 1, $args['current'], false ) . ' />';
+    $output = '<input type="checkbox"' . $options . ' name="' . esc_attr($args['name']) . '" id="' . esc_attr($args['name']) . '" class="' . $class . ' ' . esc_attr($args['name']) . '" ' . checked(1, $args['current'], false) . ' />';
 
     return $output;
 }
@@ -572,30 +572,30 @@ 
 /**
  * Displays a hidden field.
  */
-function getpaid_hidden_field( $name, $value ) {
-    $name  = sanitize_text_field( $name );
-    $value = esc_attr( $value );
+function getpaid_hidden_field($name, $value) {
+    $name  = sanitize_text_field($name);
+    $value = esc_attr($value);
 
     echo "<input type='hidden' name='$name' value='$value' />";
 }
 
-function wpinv_html_text( $args = array() ) {
+function wpinv_html_text($args = array()) {
     // Backwards compatibility
-    if ( func_num_args() > 1 ) {
+    if (func_num_args() > 1) {
         $args = func_get_args();
 
         $name  = $args[0];
-        $value = isset( $args[1] ) ? $args[1] : '';
-        $label = isset( $args[2] ) ? $args[2] : '';
-        $desc  = isset( $args[3] ) ? $args[3] : '';
+        $value = isset($args[1]) ? $args[1] : '';
+        $label = isset($args[2]) ? $args[2] : '';
+        $desc  = isset($args[3]) ? $args[3] : '';
     }
 
     $defaults = array(
         'id'           => '',
-        'name'         => isset( $name )  ? $name  : 'text',
-        'value'        => isset( $value ) ? $value : null,
-        'label'        => isset( $label ) ? $label : null,
-        'desc'         => isset( $desc )  ? $desc  : null,
+        'name'         => isset($name) ? $name : 'text',
+        'value'        => isset($value) ? $value : null,
+        'label'        => isset($label) ? $label : null,
+        'desc'         => isset($desc) ? $desc : null,
         'placeholder'  => '',
         'class'        => 'regular-text',
         'disabled'     => false,
@@ -605,51 +605,51 @@ 
         'data'         => false
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    $class = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
+    $class = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
     $options = '';
-    if( $args['required'] ) {
+    if ($args['required']) {
         $options .= ' required="required"';
     }
-    if( $args['readonly'] ) {
+    if ($args['readonly']) {
         $options .= ' readonly';
     }
-    if( $args['readonly'] ) {
+    if ($args['readonly']) {
         $options .= ' readonly';
     }
 
     $data = '';
-    if ( !empty( $args['data'] ) ) {
-        foreach ( $args['data'] as $key => $value ) {
-            $data .= 'data-' . wpinv_sanitize_key( $key ) . '="' . esc_attr( $value ) . '" ';
+    if (!empty($args['data'])) {
+        foreach ($args['data'] as $key => $value) {
+            $data .= 'data-' . wpinv_sanitize_key($key) . '="' . esc_attr($value) . '" ';
         }
     }
 
-    $output = '<span id="wpinv-' . wpinv_sanitize_key( $args['name'] ) . '-wrap">';
-    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key( $args['id'] ) . '">' . esc_html( $args['label'] ) . '</label>';
-    if ( ! empty( $args['desc'] ) ) {
-        $output .= '<span class="wpinv-description">' . esc_html( $args['desc'] ) . '</span>';
+    $output = '<span id="wpinv-' . wpinv_sanitize_key($args['name']) . '-wrap">';
+    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key($args['id']) . '">' . esc_html($args['label']) . '</label>';
+    if (!empty($args['desc'])) {
+        $output .= '<span class="wpinv-description">' . esc_html($args['desc']) . '</span>';
     }
 
-    $output .= '<input type="text" name="' . esc_attr( $args['name'] ) . '" id="' . esc_attr( $args['id'] )  . '" autocomplete="' . esc_attr( $args['autocomplete'] )  . '" value="' . esc_attr( $args['value'] ) . '" placeholder="' . esc_attr( $args['placeholder'] ) . '" class="' . $class . '" ' . $data . ' ' . trim( $options ) . '/>';
+    $output .= '<input type="text" name="' . esc_attr($args['name']) . '" id="' . esc_attr($args['id']) . '" autocomplete="' . esc_attr($args['autocomplete']) . '" value="' . esc_attr($args['value']) . '" placeholder="' . esc_attr($args['placeholder']) . '" class="' . $class . '" ' . $data . ' ' . trim($options) . '/>';
 
     $output .= '</span>';
 
     return $output;
 }
 
-function wpinv_html_date_field( $args = array() ) {
-    if( empty( $args['class'] ) ) {
+function wpinv_html_date_field($args = array()) {
+    if (empty($args['class'])) {
         $args['class'] = 'wpiDatepicker';
-    } elseif( ! strpos( $args['class'], 'wpiDatepicker' ) ) {
+    } elseif (!strpos($args['class'], 'wpiDatepicker')) {
         $args['class'] .= ' wpiDatepicker';
     }
 
-    return wpinv_html_text( $args );
+    return wpinv_html_text($args);
 }
 
-function wpinv_html_textarea( $args = array() ) {
+function wpinv_html_textarea($args = array()) {
     $defaults = array(
         'name'        => 'textarea',
         'value'       => null,
@@ -660,31 +660,31 @@ 
         'placeholder' => '',
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    $class = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
+    $class = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
     $disabled = '';
-    if( $args['disabled'] ) {
+    if ($args['disabled']) {
         $disabled = ' disabled="disabled"';
     }
 
-    $output = '<span id="wpinv-' . wpinv_sanitize_key( $args['name'] ) . '-wrap">';
-    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key( $args['name'] ) . '">' . esc_html( $args['label'] ) . '</label>';
-    $output .= '<textarea name="' . esc_attr( $args['name'] ) . '" placeholder="' . esc_attr( $args['placeholder'] ) . '" id="' . wpinv_sanitize_key( $args['name'] ) . '" class="' . $class . '"' . $disabled . '>' . esc_attr( $args['value'] ) . '</textarea>';
+    $output = '<span id="wpinv-' . wpinv_sanitize_key($args['name']) . '-wrap">';
+    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key($args['name']) . '">' . esc_html($args['label']) . '</label>';
+    $output .= '<textarea name="' . esc_attr($args['name']) . '" placeholder="' . esc_attr($args['placeholder']) . '" id="' . wpinv_sanitize_key($args['name']) . '" class="' . $class . '"' . $disabled . '>' . esc_attr($args['value']) . '</textarea>';
 
-    if ( ! empty( $args['desc'] ) ) {
-        $output .= '<span class="wpinv-description">' . esc_html( $args['desc'] ) . '</span>';
+    if (!empty($args['desc'])) {
+        $output .= '<span class="wpinv-description">' . esc_html($args['desc']) . '</span>';
     }
     $output .= '</span>';
 
     return $output;
 }
 
-function wpinv_html_ajax_user_search( $args = array() ) {
+function wpinv_html_ajax_user_search($args = array()) {
     $defaults = array(
         'name'        => 'user_id',
         'value'       => null,
-        'placeholder' => __( 'Enter username', 'invoicing' ),
+        'placeholder' => __('Enter username', 'invoicing'),
         'label'       => null,
         'desc'        => null,
         'class'       => '',
@@ -693,13 +693,13 @@ 
         'data'        => false
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
     $args['class'] = 'wpinv-ajax-user-search ' . $args['class'];
 
     $output  = '<span class="wpinv_user_search_wrap">';
-        $output .= wpinv_html_text( $args );
-        $output .= '<span class="wpinv_user_search_results hidden"><a class="wpinv-ajax-user-cancel" title="' . __( 'Cancel', 'invoicing' ) . '" aria-label="' . __( 'Cancel', 'invoicing' ) . '" href="#">x</a><span></span></span>';
+        $output .= wpinv_html_text($args);
+        $output .= '<span class="wpinv_user_search_results hidden"><a class="wpinv-ajax-user-cancel" title="' . __('Cancel', 'invoicing') . '" aria-label="' . __('Cancel', 'invoicing') . '" href="#">x</a><span></span></span>';
     $output .= '</span>';
 
     return $output;
@@ -710,20 +710,20 @@ 
  * 
  * @param string $template the template that is currently being used.
  */
-function wpinv_template( $template ) {
+function wpinv_template($template) {
     global $post;
 
-    if ( ! is_admin() && ( is_single() || is_404() ) && ! empty( $post->ID ) && getpaid_is_invoice_post_type( get_post_type( $post->ID ) ) ) {
+    if (!is_admin() && (is_single() || is_404()) && !empty($post->ID) && getpaid_is_invoice_post_type(get_post_type($post->ID))) {
 
         // If the user can view this invoice, display it.
-        if ( wpinv_user_can_view_invoice( $post->ID ) ) {
+        if (wpinv_user_can_view_invoice($post->ID)) {
 
-            return wpinv_get_template_part( 'wpinv-invoice-print', false, false );
+            return wpinv_get_template_part('wpinv-invoice-print', false, false);
 
         // Else display an error message.
         } else {
 
-            return wpinv_get_template_part( 'wpinv-invalid-access', false, false );
+            return wpinv_get_template_part('wpinv-invalid-access', false, false);
 
         }
 
@@ -731,46 +731,46 @@ 
 
     return $template;
 }
-add_filter( 'template_include', 'wpinv_template', 10, 1 );
+add_filter('template_include', 'wpinv_template', 10, 1);
 
 function wpinv_get_business_address() {
     $business_address   = wpinv_store_address();
-    $business_address   = !empty( $business_address ) ? wpautop( wp_kses_post( $business_address ) ) : '';
+    $business_address   = !empty($business_address) ? wpautop(wp_kses_post($business_address)) : '';
     
     $business_address = $business_address ? '<div class="address">' . $business_address . '</div>' : '';
     
-    return apply_filters( 'wpinv_get_business_address', $business_address );
+    return apply_filters('wpinv_get_business_address', $business_address);
 }
 
 /**
  * Displays the company address.
  */
 function wpinv_display_from_address() {
-    wpinv_get_template( 'invoice/company-address.php' );
+    wpinv_get_template('invoice/company-address.php');
 }
-add_action( 'getpaid_invoice_details_left', 'wpinv_display_from_address', 10 );
+add_action('getpaid_invoice_details_left', 'wpinv_display_from_address', 10);
 
-function wpinv_watermark( $id = 0 ) {
-    $output = wpinv_get_watermark( $id );
-    return apply_filters( 'wpinv_get_watermark', $output, $id );
+function wpinv_watermark($id = 0) {
+    $output = wpinv_get_watermark($id);
+    return apply_filters('wpinv_get_watermark', $output, $id);
 }
 
-function wpinv_get_watermark( $id ) {
-    if ( !$id > 0 ) {
+function wpinv_get_watermark($id) {
+    if (!$id > 0) {
         return NULL;
     }
 
-    $invoice = wpinv_get_invoice( $id );
+    $invoice = wpinv_get_invoice($id);
     
-    if ( !empty( $invoice ) && "wpi_invoice" === $invoice->post_type ) {
-        if ( $invoice->is_paid() ) {
-            return __( 'Paid', 'invoicing' );
+    if (!empty($invoice) && "wpi_invoice" === $invoice->post_type) {
+        if ($invoice->is_paid()) {
+            return __('Paid', 'invoicing');
         }
-        if ( $invoice->is_refunded() ) {
-            return __( 'Refunded', 'invoicing' );
+        if ($invoice->is_refunded()) {
+            return __('Refunded', 'invoicing');
         }
-        if ( $invoice->has_status( array( 'wpi-cancelled' ) ) ) {
-            return __( 'Cancelled', 'invoicing' );
+        if ($invoice->has_status(array('wpi-cancelled'))) {
+            return __('Cancelled', 'invoicing');
         }
     }
     
@@ -780,30 +780,30 @@ 
 /**
  * @deprecated
  */
-function wpinv_display_invoice_details( $invoice ) {
-    return getpaid_invoice_meta( $invoice );
+function wpinv_display_invoice_details($invoice) {
+    return getpaid_invoice_meta($invoice);
 }
 
 /**
  * Displays invoice meta.
  */
-function getpaid_invoice_meta( $invoice ) {
+function getpaid_invoice_meta($invoice) {
 
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Ensure that we have an invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return;
     }
 
     // Get the invoice meta.
-    $meta = getpaid_get_invoice_meta( $invoice );
+    $meta = getpaid_get_invoice_meta($invoice);
 
     // Display the meta.
-    wpinv_get_template( 'invoice/invoice-meta.php', compact( 'invoice', 'meta' ) );
+    wpinv_get_template('invoice/invoice-meta.php', compact('invoice', 'meta'));
 
 }
-add_action( 'getpaid_invoice_details_right', 'getpaid_invoice_meta', 10 );
+add_action('getpaid_invoice_details_right', 'getpaid_invoice_meta', 10);
 
 /**
  * Retrieves the address markup to use on Invoices.
@@ -815,29 +815,29 @@ 
  * @param  string $separator How to separate address lines.
  * @return string
  */
-function wpinv_get_invoice_address_markup( $billing_details, $separator = '<br/>' ) {
+function wpinv_get_invoice_address_markup($billing_details, $separator = '<br/>') {
 
     // Retrieve the address markup...
-    $country= empty( $billing_details['country'] ) ? '' : $billing_details['country'];
-    $format = wpinv_get_full_address_format( $country );
+    $country = empty($billing_details['country']) ? '' : $billing_details['country'];
+    $format = wpinv_get_full_address_format($country);
 
     // ... and the replacements.
-    $replacements = wpinv_get_invoice_address_replacements( $billing_details );
+    $replacements = wpinv_get_invoice_address_replacements($billing_details);
 
-    $formatted_address = str_ireplace( array_keys( $replacements ), $replacements, $format );
+    $formatted_address = str_ireplace(array_keys($replacements), $replacements, $format);
     
 	// Remove unavailable tags.
-    $formatted_address = preg_replace( "/\{\{\w+\}\}/", '', $formatted_address );
+    $formatted_address = preg_replace("/\{\{\w+\}\}/", '', $formatted_address);
 
     // Clean up white space.
-	$formatted_address = preg_replace( '/  +/', ' ', trim( $formatted_address ) );
-    $formatted_address = preg_replace( '/\n\n+/', "\n", $formatted_address );
+	$formatted_address = preg_replace('/  +/', ' ', trim($formatted_address));
+    $formatted_address = preg_replace('/\n\n+/', "\n", $formatted_address);
     
     // Break newlines apart and remove empty lines/trim commas and white space.
-	$formatted_address = array_filter( array_map( 'wpinv_trim_formatted_address_line', explode( "\n", $formatted_address ) ) );
+	$formatted_address = array_filter(array_map('wpinv_trim_formatted_address_line', explode("\n", $formatted_address)));
 
     // Add html breaks.
-	$formatted_address = implode( $separator, $formatted_address );
+	$formatted_address = implode($separator, $formatted_address);
 
 	// We're done!
 	return $formatted_address;
@@ -849,88 +849,88 @@ 
  * 
  * @param WPInv_Invoice $invoice
  */
-function wpinv_display_to_address( $invoice = 0 ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/billing-address.php', compact( 'invoice' ) );
+function wpinv_display_to_address($invoice = 0) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/billing-address.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details_left', 'wpinv_display_to_address', 40 );
+add_action('getpaid_invoice_details_left', 'wpinv_display_to_address', 40);
 
 
 /**
  * Displays invoice line items.
  */
-function wpinv_display_line_items( $invoice_id = 0 ) {
+function wpinv_display_line_items($invoice_id = 0) {
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // Abort if there is no invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return;
     }
 
     // Line item columns.
-    $columns = getpaid_invoice_item_columns( $invoice );
-    $columns = apply_filters( 'getpaid_invoice_line_items_table_columns', $columns, $invoice );
+    $columns = getpaid_invoice_item_columns($invoice);
+    $columns = apply_filters('getpaid_invoice_line_items_table_columns', $columns, $invoice);
 
-    wpinv_get_template( 'invoice/line-items.php', compact( 'invoice', 'columns' ) );
+    wpinv_get_template('invoice/line-items.php', compact('invoice', 'columns'));
 }
-add_action( 'getpaid_invoice_line_items', 'wpinv_display_line_items', 10 );
+add_action('getpaid_invoice_line_items', 'wpinv_display_line_items', 10);
 
 /**
  * Displays invoice notices on invoices.
  */
 function wpinv_display_invoice_notice() {
 
-    $label  = wpinv_get_option( 'vat_invoice_notice_label' );
-    $notice = wpinv_get_option( 'vat_invoice_notice' );
+    $label  = wpinv_get_option('vat_invoice_notice_label');
+    $notice = wpinv_get_option('vat_invoice_notice');
 
-    if ( empty( $label ) && empty( $notice ) ) {
+    if (empty($label) && empty($notice)) {
         return;
     }
 
     echo '<div class="mt-4 mb-4 wpinv-vat-notice">';
 
-    if ( ! empty( $label ) ) {
-        $label = sanitize_text_field( $label );
+    if (!empty($label)) {
+        $label = sanitize_text_field($label);
         echo "<h5>$label</h5>";
     }
 
-    if ( ! empty( $notice ) ) {
-        echo '<small class="form-text text-muted">' . wpautop( wptexturize( $notice ) ) . '</small>';
+    if (!empty($notice)) {
+        echo '<small class="form-text text-muted">' . wpautop(wptexturize($notice)) . '</small>';
     }
 
     echo '</div>';
 }
-add_action( 'getpaid_invoice_line_items', 'wpinv_display_invoice_notice', 100 );
+add_action('getpaid_invoice_line_items', 'wpinv_display_invoice_notice', 100);
 
 /**
  * @param WPInv_Invoice $invoice
  */
-function wpinv_display_invoice_notes( $invoice ) {
+function wpinv_display_invoice_notes($invoice) {
 
     // Retrieve the notes.
-    $notes = wpinv_get_invoice_notes( $invoice->get_id(), 'customer' );
+    $notes = wpinv_get_invoice_notes($invoice->get_id(), 'customer');
 
     // Abort if we have non.
-    if ( empty( $notes ) ) {
+    if (empty($notes)) {
         return;
     }
 
     // Echo the note.
     echo '<div class="getpaid-invoice-notes-wrapper border position-relative w-100 mb-4 p-0">';
-    echo '<h3 class="getpaid-invoice-notes-title text-dark bg-light border-bottom m-0 d-block">' . __( 'Notes', 'invoicing' ) .'</h3>';
+    echo '<h3 class="getpaid-invoice-notes-title text-dark bg-light border-bottom m-0 d-block">' . __('Notes', 'invoicing') . '</h3>';
     echo '<ul class="getpaid-invoice-notes mt-4 p-0">';
 
-    foreach( $notes as $note ) {
-        wpinv_get_invoice_note_line_item( $note );
+    foreach ($notes as $note) {
+        wpinv_get_invoice_note_line_item($note);
     }
 
     echo '</ul>';
     echo '</div>';
 }
-add_action( 'getpaid_invoice_line_items', 'wpinv_display_invoice_notes', 60 );
+add_action('getpaid_invoice_line_items', 'wpinv_display_invoice_notes', 60);
 
 /**
  * Loads scripts on our invoice templates.
@@ -938,32 +938,32 @@ 
 function wpinv_display_style() {
 
     // Make sure that all scripts have been loaded.
-    if ( ! did_action( 'wp_enqueue_scripts' ) ) {
-        do_action( 'wp_enqueue_scripts' );
+    if (!did_action('wp_enqueue_scripts')) {
+        do_action('wp_enqueue_scripts');
     }
 
     // Register the invoices style.
-    wp_register_style( 'wpinv-single-style', WPINV_PLUGIN_URL . 'assets/css/invoice.css', array(), filemtime( WPINV_PLUGIN_DIR . 'assets/css/invoice.css' ) );
+    wp_register_style('wpinv-single-style', WPINV_PLUGIN_URL . 'assets/css/invoice.css', array(), filemtime(WPINV_PLUGIN_DIR . 'assets/css/invoice.css'));
 
     // Load required styles
-    wp_print_styles( 'open-sans' );
-    wp_print_styles( 'wpinv-single-style' );
-    wp_print_styles( 'ayecode-ui' );
+    wp_print_styles('open-sans');
+    wp_print_styles('wpinv-single-style');
+    wp_print_styles('ayecode-ui');
 
     // Maybe load custom css.
-    $custom_css = wpinv_get_option( 'template_custom_css' );
+    $custom_css = wpinv_get_option('template_custom_css');
 
-    if ( isset( $custom_css ) && ! empty( $custom_css ) ) {
-        $custom_css     = wp_kses( $custom_css, array( '\'', '\"' ) );
-        $custom_css     = str_replace( '&gt;', '>', $custom_css );
+    if (isset($custom_css) && !empty($custom_css)) {
+        $custom_css     = wp_kses($custom_css, array('\'', '\"'));
+        $custom_css     = str_replace('&gt;', '>', $custom_css);
         echo '<style type="text/css">';
         echo $custom_css;
         echo '</style>';
     }
 
 }
-add_action( 'wpinv_invoice_print_head', 'wpinv_display_style' );
-add_action( 'wpinv_invalid_invoice_head', 'wpinv_display_style' );
+add_action('wpinv_invoice_print_head', 'wpinv_display_style');
+add_action('wpinv_invalid_invoice_head', 'wpinv_display_style');
 
 
 /**
@@ -975,41 +975,41 @@ 
     // Retrieve the current invoice.
     $invoice_id = getpaid_get_current_invoice_id();
 
-    if ( empty( $invoice_id ) ) {
+    if (empty($invoice_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'Invalid invoice', 'invoicing' ),
+                'content' => __('Invalid invoice', 'invoicing'),
             )
         );
 
     }
 
     // Can the user view this invoice?
-    if ( ! wpinv_user_can_view_invoice( $invoice_id ) ) {
+    if (!wpinv_user_can_view_invoice($invoice_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'You are not allowed to view this invoice', 'invoicing' ),
+                'content' => __('You are not allowed to view this invoice', 'invoicing'),
             )
         );
 
     }
 
     // Ensure that it is not yet paid for.
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // Maybe mark it as viewed.
-    getpaid_maybe_mark_invoice_as_viewed( $invoice );
+    getpaid_maybe_mark_invoice_as_viewed($invoice);
 
-    if ( $invoice->is_paid() ) {
+    if ($invoice->is_paid()) {
 
         return aui()->alert(
             array(
                 'type'    => 'success',
-                'content' => __( 'This invoice has already been paid.', 'invoicing' ),
+                'content' => __('This invoice has already been paid.', 'invoicing'),
             )
         );
 
@@ -1019,14 +1019,14 @@ 
     $wpi_checkout_id = $invoice_id;
 
     // We'll display this invoice via the default form.
-    $form = new GetPaid_Payment_Form( wpinv_get_default_payment_form() );
+    $form = new GetPaid_Payment_Form(wpinv_get_default_payment_form());
 
-    if ( 0 == $form->get_id() ) {
+    if (0 == $form->get_id()) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'Error loading the payment form', 'invoicing' ),
+                'content' => __('Error loading the payment form', 'invoicing'),
             )
         );
 
@@ -1034,7 +1034,7 @@ 
 
     // Set the invoice.
     $form->invoice = $invoice;
-    $form->set_items( $invoice->get_items() );
+    $form->set_items($invoice->get_items());
 
     // Generate the html.
     return $form->get_html();
@@ -1042,7 +1042,7 @@ 
 }
 
 function wpinv_empty_cart_message() {
-	return apply_filters( 'wpinv_empty_cart_message', '<span class="wpinv_empty_cart">' . __( 'Your cart is empty.', 'invoicing' ) . '</span>' );
+	return apply_filters('wpinv_empty_cart_message', '<span class="wpinv_empty_cart">' . __('Your cart is empty.', 'invoicing') . '</span>');
 }
 
 /**
@@ -1059,38 +1059,38 @@ 
         )
     );
 }
-add_action( 'wpinv_cart_empty', 'wpinv_empty_checkout_cart' );
+add_action('wpinv_cart_empty', 'wpinv_empty_checkout_cart');
 
-function wpinv_receipt_billing_address( $invoice_id = 0 ) {
-    $invoice = wpinv_get_invoice( $invoice_id );
+function wpinv_receipt_billing_address($invoice_id = 0) {
+    $invoice = wpinv_get_invoice($invoice_id);
 
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return NULL;
     }
 
     $billing_details = $invoice->get_user_info();
-    $address_row = wpinv_get_invoice_address_markup( $billing_details );
+    $address_row = wpinv_get_invoice_address_markup($billing_details);
 
     ob_start();
     ?>
     <table class="table table-bordered table-sm wpi-billing-details">
         <tbody>
             <tr class="wpi-receipt-name">
-                <th class="text-left"><?php _e( 'Name', 'invoicing' ); ?></th>
-                <td><?php echo esc_html( trim( $billing_details['first_name'] . ' ' . $billing_details['last_name'] ) ) ;?></td>
+                <th class="text-left"><?php _e('Name', 'invoicing'); ?></th>
+                <td><?php echo esc_html(trim($billing_details['first_name'] . ' ' . $billing_details['last_name'])); ?></td>
             </tr>
             <tr class="wpi-receipt-email">
-                <th class="text-left"><?php _e( 'Email', 'invoicing' ); ?></th>
-                <td><?php echo $billing_details['email'] ;?></td>
+                <th class="text-left"><?php _e('Email', 'invoicing'); ?></th>
+                <td><?php echo $billing_details['email']; ?></td>
             </tr>
             <tr class="wpi-receipt-address">
-                <th class="text-left"><?php _e( 'Address', 'invoicing' ); ?></th>
-                <td><?php echo $address_row ;?></td>
+                <th class="text-left"><?php _e('Address', 'invoicing'); ?></th>
+                <td><?php echo $address_row; ?></td>
             </tr>
-            <?php if ( $billing_details['phone'] ) { ?>
+            <?php if ($billing_details['phone']) { ?>
             <tr class="wpi-receipt-phone">
-                <th class="text-left"><?php _e( 'Phone', 'invoicing' ); ?></th>
-                <td><?php echo esc_html( $billing_details['phone'] ) ;?></td>
+                <th class="text-left"><?php _e('Phone', 'invoicing'); ?></th>
+                <td><?php echo esc_html($billing_details['phone']); ?></td>
             </tr>
             <?php } ?>
         </tbody>
@@ -1098,7 +1098,7 @@ 
     <?php
     $output = ob_get_clean();
     
-    $output = apply_filters( 'wpinv_receipt_billing_address', $output, $invoice_id );
+    $output = apply_filters('wpinv_receipt_billing_address', $output, $invoice_id);
 
     echo $output;
 }
@@ -1106,66 +1106,66 @@ 
 /**
  * Filters the receipt page.
  */
-function wpinv_filter_success_page_content( $content ) {
+function wpinv_filter_success_page_content($content) {
 
     // Ensure this is our page.
-    if ( isset( $_GET['payment-confirm'] ) && wpinv_is_success_page() ) {
+    if (isset($_GET['payment-confirm']) && wpinv_is_success_page()) {
 
-        $gateway = sanitize_text_field( $_GET['payment-confirm'] );
-        return apply_filters( "wpinv_payment_confirm_$gateway", $content );
+        $gateway = sanitize_text_field($_GET['payment-confirm']);
+        return apply_filters("wpinv_payment_confirm_$gateway", $content);
 
     }
 
     return $content;
 }
-add_filter( 'the_content', 'wpinv_filter_success_page_content', 99999 );
+add_filter('the_content', 'wpinv_filter_success_page_content', 99999);
 
-function wpinv_invoice_link( $invoice_id ) {
-    $invoice = wpinv_get_invoice( $invoice_id );
+function wpinv_invoice_link($invoice_id) {
+    $invoice = wpinv_get_invoice($invoice_id);
 
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return NULL;
     }
 
-    $invoice_link = '<a href="' . esc_url( $invoice->get_view_url() ) . '">' . $invoice->get_number() . '</a>';
+    $invoice_link = '<a href="' . esc_url($invoice->get_view_url()) . '">' . $invoice->get_number() . '</a>';
 
-    return apply_filters( 'wpinv_get_invoice_link', $invoice_link, $invoice );
+    return apply_filters('wpinv_get_invoice_link', $invoice_link, $invoice);
 }
 
-function wpinv_get_invoice_note_line_item( $note, $echo = true ) {
-    if ( empty( $note ) ) {
+function wpinv_get_invoice_note_line_item($note, $echo = true) {
+    if (empty($note)) {
         return NULL;
     }
 
-    if ( is_int( $note ) ) {
-        $note = get_comment( $note );
+    if (is_int($note)) {
+        $note = get_comment($note);
     }
 
-    if ( !( is_object( $note ) && is_a( $note, 'WP_Comment' ) ) ) {
+    if (!(is_object($note) && is_a($note, 'WP_Comment'))) {
         return NULL;
     }
 
-    $note_classes   = array( 'note' );
-    $note_classes[] = get_comment_meta( $note->comment_ID, '_wpi_customer_note', true ) ? 'customer-note' : '';
+    $note_classes   = array('note');
+    $note_classes[] = get_comment_meta($note->comment_ID, '_wpi_customer_note', true) ? 'customer-note' : '';
     $note_classes[] = $note->comment_author === 'System' ? 'system-note' : '';
-    $note_classes   = apply_filters( 'wpinv_invoice_note_class', array_filter( $note_classes ), $note );
-    $note_classes   = !empty( $note_classes ) ? implode( ' ', $note_classes ) : '';
+    $note_classes   = apply_filters('wpinv_invoice_note_class', array_filter($note_classes), $note);
+    $note_classes   = !empty($note_classes) ? implode(' ', $note_classes) : '';
 
     ob_start();
     ?>
-    <li rel="<?php echo absint( $note->comment_ID ) ; ?>" class="<?php echo esc_attr( $note_classes ); ?> mt-4 pl-3 pr-3">
+    <li rel="<?php echo absint($note->comment_ID); ?>" class="<?php echo esc_attr($note_classes); ?> mt-4 pl-3 pr-3">
         <div class="note_content bg-light border position-relative p-4">
 
-            <?php echo wpautop( wptexturize( wp_kses_post( $note->comment_content ) ) ); ?>
+            <?php echo wpautop(wptexturize(wp_kses_post($note->comment_content))); ?>
 
-            <?php if ( ! is_admin() ) : ?>
+            <?php if (!is_admin()) : ?>
                 <em class="meta position-absolute form-text">
                     <?php
                         printf(
-                            __( '%1$s - %2$s at %3$s', 'invoicing' ),
+                            __('%1$s - %2$s at %3$s', 'invoicing'),
                             $note->comment_author,
-                            getpaid_format_date_value( $note->comment_date ),
-                            date_i18n( get_option( 'time_format' ), strtotime( $note->comment_date ) )
+                            getpaid_format_date_value($note->comment_date),
+                            date_i18n(get_option('time_format'), strtotime($note->comment_date))
                         );
                     ?>
                 </em>
@@ -1173,21 +1173,21 @@ 
 
         </div>
 
-        <?php if ( is_admin() ) : ?>
+        <?php if (is_admin()) : ?>
 
             <p class="meta px-4 py-2">
-                <abbr class="exact-date" title="<?php echo esc_attr( $note->comment_date ); ?>">
+                <abbr class="exact-date" title="<?php echo esc_attr($note->comment_date); ?>">
                     <?php
                         printf(
-                            __( '%1$s - %2$s at %3$s', 'invoicing' ),
+                            __('%1$s - %2$s at %3$s', 'invoicing'),
                             $note->comment_author,
-                            getpaid_format_date_value( $note->comment_date ),
-                            date_i18n( get_option( 'time_format' ), strtotime( $note->comment_date ) )
+                            getpaid_format_date_value($note->comment_date),
+                            date_i18n(get_option('time_format'), strtotime($note->comment_date))
                         );
                     ?>
                 </abbr>&nbsp;&nbsp;
-                <?php if ( $note->comment_author !== 'System' && wpinv_current_user_can_manage_invoicing() ) { ?>
-                    <a href="#" class="delete_note"><?php _e( 'Delete note', 'invoicing' ); ?></a>
+                <?php if ($note->comment_author !== 'System' && wpinv_current_user_can_manage_invoicing()) { ?>
+                    <a href="#" class="delete_note"><?php _e('Delete note', 'invoicing'); ?></a>
                 <?php } ?>
             </p>
 
@@ -1196,9 +1196,9 @@ 
     </li>
     <?php
     $note_content = ob_get_clean();
-    $note_content = apply_filters( 'wpinv_get_invoice_note_line_item', $note_content, $note, $echo );
+    $note_content = apply_filters('wpinv_get_invoice_note_line_item', $note_content, $note, $echo);
 
-    if ( $echo ) {
+    if ($echo) {
         echo $note_content;
     } else {
         return $note_content;
@@ -1208,36 +1208,36 @@ 
 function wpinv_invalid_invoice_content() {
     global $post;
 
-    $invoice = wpinv_get_invoice( $post->ID );
+    $invoice = wpinv_get_invoice($post->ID);
 
-    $error = __( 'This invoice is only viewable by clicking on the invoice link that was sent to you via email.', 'invoicing' );
-    if ( !empty( $invoice->get_id() ) && $invoice->has_status( array_keys( wpinv_get_invoice_statuses() ) ) ) {
-        if ( is_user_logged_in() ) {
-            if ( wpinv_require_login_to_checkout() ) {
-                if ( isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
-                    $error = __( 'You are not allowed to view this invoice.', 'invoicing' );
+    $error = __('This invoice is only viewable by clicking on the invoice link that was sent to you via email.', 'invoicing');
+    if (!empty($invoice->get_id()) && $invoice->has_status(array_keys(wpinv_get_invoice_statuses()))) {
+        if (is_user_logged_in()) {
+            if (wpinv_require_login_to_checkout()) {
+                if (isset($_GET['invoice_key']) && $_GET['invoice_key'] === $invoice->get_key()) {
+                    $error = __('You are not allowed to view this invoice.', 'invoicing');
                 }
             }
         } else {
-            if ( wpinv_require_login_to_checkout() ) {
-                if ( isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
-                    $error = __( 'You must be logged in to view this invoice.', 'invoicing' );
+            if (wpinv_require_login_to_checkout()) {
+                if (isset($_GET['invoice_key']) && $_GET['invoice_key'] === $invoice->get_key()) {
+                    $error = __('You must be logged in to view this invoice.', 'invoicing');
                 }
             }
         }
     } else {
-        $error = __( 'This invoice is deleted or does not exist.', 'invoicing' );
+        $error = __('This invoice is deleted or does not exist.', 'invoicing');
     }
     ?>
     <div class="row wpinv-row-invalid">
         <div class="col-md-6 col-md-offset-3 wpinv-message error">
-            <h3><?php _e( 'Access Denied', 'invoicing' ); ?></h3>
+            <h3><?php _e('Access Denied', 'invoicing'); ?></h3>
             <p class="wpinv-msg-text"><?php echo $error; ?></p>
         </div>
     </div>
     <?php
 }
-add_action( 'wpinv_invalid_invoice_content', 'wpinv_invalid_invoice_content' );
+add_action('wpinv_invalid_invoice_content', 'wpinv_invalid_invoice_content');
 
 /**
  * Function to get privacy policy text.
@@ -1246,21 +1246,21 @@ 
  * @return string
  */
 function wpinv_get_policy_text() {
-    $privacy_page_id = get_option( 'wp_page_for_privacy_policy', 0 );
+    $privacy_page_id = get_option('wp_page_for_privacy_policy', 0);
 
-    $text = wpinv_get_option('invoicing_privacy_checkout_message', sprintf( __( 'Your personal data will be used to process your invoice, payment and for other purposes described in our %s.', 'invoicing' ), '[wpinv_privacy_policy]' ));
+    $text = wpinv_get_option('invoicing_privacy_checkout_message', sprintf(__('Your personal data will be used to process your invoice, payment and for other purposes described in our %s.', 'invoicing'), '[wpinv_privacy_policy]'));
 
-    if(!$privacy_page_id){
-        $privacy_page_id = wpinv_get_option( 'privacy_page', 0 );
+    if (!$privacy_page_id) {
+        $privacy_page_id = wpinv_get_option('privacy_page', 0);
     }
 
-    $privacy_link    = $privacy_page_id ? '<a href="' . esc_url( get_permalink( $privacy_page_id ) ) . '" class="wpinv-privacy-policy-link" target="_blank">' . __( 'privacy policy', 'invoicing' ) . '</a>' : __( 'privacy policy', 'invoicing' );
+    $privacy_link = $privacy_page_id ? '<a href="' . esc_url(get_permalink($privacy_page_id)) . '" class="wpinv-privacy-policy-link" target="_blank">' . __('privacy policy', 'invoicing') . '</a>' : __('privacy policy', 'invoicing');
 
     $find_replace = array(
         '[wpinv_privacy_policy]' => $privacy_link,
     );
 
-    $privacy_text = str_replace( array_keys( $find_replace ), array_values( $find_replace ), $text );
+    $privacy_text = str_replace(array_keys($find_replace), array_values($find_replace), $text);
 
     return wp_kses_post(wpautop($privacy_text));
 }
@@ -1268,21 +1268,21 @@ 
 function wpinv_oxygen_fix_conflict() {
     global $ct_ignore_post_types;
 
-    if ( ! is_array( $ct_ignore_post_types ) ) {
+    if (!is_array($ct_ignore_post_types)) {
         $ct_ignore_post_types = array();
     }
 
-    $post_types = array( 'wpi_discount', 'wpi_invoice', 'wpi_item' );
+    $post_types = array('wpi_discount', 'wpi_invoice', 'wpi_item');
 
-    foreach ( $post_types as $post_type ) {
+    foreach ($post_types as $post_type) {
         $ct_ignore_post_types[] = $post_type;
 
         // Ignore post type
-        add_filter( 'pre_option_oxygen_vsb_ignore_post_type_' . $post_type, '__return_true', 999 );
+        add_filter('pre_option_oxygen_vsb_ignore_post_type_' . $post_type, '__return_true', 999);
     }
 
-    remove_filter( 'template_include', 'wpinv_template', 10, 1 );
-    add_filter( 'template_include', 'wpinv_template', 999, 1 );
+    remove_filter('template_include', 'wpinv_template', 10, 1);
+    add_filter('template_include', 'wpinv_template', 999, 1);
 }
 
 /**
@@ -1290,10 +1290,10 @@ 
  * 
  * @param GetPaid_Payment_Form $form
  */
-function getpaid_display_payment_form( $form ) {
+function getpaid_display_payment_form($form) {
 
-    if ( is_numeric( $form ) ) {
-        $form = new GetPaid_Payment_Form( $form );
+    if (is_numeric($form)) {
+        $form = new GetPaid_Payment_Form($form);
     }
 
     $form->display();
@@ -1303,55 +1303,55 @@ 
 /**
  * Helper function to display a item payment form on the frontend.
  */
-function getpaid_display_item_payment_form( $items ) {
+function getpaid_display_item_payment_form($items) {
 
-    $form = new GetPaid_Payment_Form( wpinv_get_default_payment_form() );
-    $form->set_items( $items );
+    $form = new GetPaid_Payment_Form(wpinv_get_default_payment_form());
+    $form->set_items($items);
 
-    if ( 0 == count( $form->get_items() ) ) {
+    if (0 == count($form->get_items())) {
         echo aui()->alert(
 			array(
 				'type'    => 'warning',
-				'content' => __( 'No published items found', 'invoicing' ),
+				'content' => __('No published items found', 'invoicing'),
 			)
         );
         return;
     }
 
-    $form_items = esc_attr( getpaid_convert_items_to_string( $items ) );
+    $form_items = esc_attr(getpaid_convert_items_to_string($items));
     $form_items = "<input type='hidden' name='getpaid-form-items' value='$form_items' />";
-    $form->display( $form_items );
+    $form->display($form_items);
 }
 
 /**
  * Helper function to display an invoice payment form on the frontend.
  */
-function getpaid_display_invoice_payment_form( $invoice_id ) {
+function getpaid_display_invoice_payment_form($invoice_id) {
 
-    $invoice = wpinv_get_invoice( $invoice_id );
+    $invoice = wpinv_get_invoice($invoice_id);
 
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
 		echo aui()->alert(
 			array(
 				'type'    => 'warning',
-				'content' => __( 'Invoice not found', 'invoicing' ),
+				'content' => __('Invoice not found', 'invoicing'),
 			)
         );
         return;
     }
 
-    if ( $invoice->is_paid() ) {
+    if ($invoice->is_paid()) {
 		echo aui()->alert(
 			array(
 				'type'    => 'warning',
-				'content' => __( 'Invoice has already been paid', 'invoicing' ),
+				'content' => __('Invoice has already been paid', 'invoicing'),
 			)
         );
         return;
     }
 
-    $form = new GetPaid_Payment_Form( wpinv_get_default_payment_form() );
-    $form->set_items( $invoice->get_items() );
+    $form = new GetPaid_Payment_Form(wpinv_get_default_payment_form());
+    $form->set_items($invoice->get_items());
 
     $form->display();
 }
@@ -1359,23 +1359,23 @@ 
 /**
  * Helper function to convert item string to array.
  */
-function getpaid_convert_items_to_array( $items ) {
-    $items    = array_filter( array_map( 'trim', explode( ',', $items ) ) );
+function getpaid_convert_items_to_array($items) {
+    $items    = array_filter(array_map('trim', explode(',', $items)));
     $prepared = array();
 
-    foreach ( $items as $item ) {
-        $data = array_map( 'trim', explode( '|', $item ) );
+    foreach ($items as $item) {
+        $data = array_map('trim', explode('|', $item));
 
-        if ( empty( $data[0] ) || ! is_numeric( $data[0] ) ) {
+        if (empty($data[0]) || !is_numeric($data[0])) {
             continue;
         }
 
         $quantity = 1;
-        if ( isset( $data[1] ) && is_numeric( $data[1] ) ) {
+        if (isset($data[1]) && is_numeric($data[1])) {
             $quantity = (int) $data[1];
         }
 
-        $prepared[ $data[0] ] = $quantity;
+        $prepared[$data[0]] = $quantity;
 
     }
 
@@ -1385,13 +1385,13 @@ 
 /**
  * Helper function to convert item array to string.
  */
-function getpaid_convert_items_to_string( $items ) {
+function getpaid_convert_items_to_string($items) {
     $prepared = array();
 
-    foreach ( $items as $item => $quantity ) {
+    foreach ($items as $item => $quantity) {
         $prepared[] = "$item|$quantity";
     }
-    return implode( ',', $prepared );
+    return implode(',', $prepared);
 }
 
 /**
@@ -1399,21 +1399,21 @@ 
  * 
  * Provide a label and one of $form, $items or $invoice.
  */
-function getpaid_get_payment_button( $label, $form = null, $items = null, $invoice = null ) {
-    $label = sanitize_text_field( $label );
+function getpaid_get_payment_button($label, $form = null, $items = null, $invoice = null) {
+    $label = sanitize_text_field($label);
 
-    if ( ! empty( $form ) ) {
-        $form  = esc_attr( $form );
+    if (!empty($form)) {
+        $form = esc_attr($form);
         return "<button class='btn btn-primary getpaid-payment-button' type='button' data-form='$form'>$label</button>"; 
     }
 	
-	if ( ! empty( $items ) ) {
-        $items  = esc_attr( $items );
+	if (!empty($items)) {
+        $items = esc_attr($items);
         return "<button class='btn btn-primary getpaid-payment-button' type='button' data-item='$items'>$label</button>"; 
     }
     
-    if ( ! empty( $invoice ) ) {
-        $invoice  = esc_attr( $invoice );
+    if (!empty($invoice)) {
+        $invoice = esc_attr($invoice);
         return "<button class='btn btn-primary getpaid-payment-button' type='button' data-invoice='$invoice'>$label</button>"; 
     }
 
@@ -1424,17 +1424,17 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_the_invoice_description( $invoice ) {
+function getpaid_the_invoice_description($invoice) {
     $description = $invoice->get_description();
 
-    if ( empty( $description ) ) {
+    if (empty($description)) {
         return;
     }
 
-    $description = wp_kses_post( $description );
+    $description = wp_kses_post($description);
     echo "<small class='getpaid-invoice-description text-dark p-2 form-text'><em>$description</em></small>";
 }
-add_action( 'getpaid_invoice_line_items', 'getpaid_the_invoice_description', 100 );
+add_action('getpaid_invoice_line_items', 'getpaid_the_invoice_description', 100);
 
 /**
  * Render element on a form.
@@ -1442,60 +1442,60 @@ 
  * @param array $element
  * @param GetPaid_Payment_Form $form
  */
-function getpaid_payment_form_element( $element, $form ) {
+function getpaid_payment_form_element($element, $form) {
 
     // Set up the args.
-    $element_type    = trim( $element['type'] );
+    $element_type    = trim($element['type']);
     $element['form'] = $form;
-    extract( $element );
+    extract($element);
 
     // Try to locate the appropriate template.
-    $located = wpinv_locate_template( "payment-forms/elements/$element_type.php" );
+    $located = wpinv_locate_template("payment-forms/elements/$element_type.php");
     
     // Abort if this is not our element.
-    if ( empty( $located ) || ! file_exists( $located ) ) {
+    if (empty($located) || !file_exists($located)) {
         return;
     }
 
     // Generate the class and id of the element.
-    $wrapper_class = 'getpaid-payment-form-element-' . trim( esc_attr( $element_type ) );
-    $id            = isset( $id ) ? $id : uniqid( 'gp' );
+    $wrapper_class = 'getpaid-payment-form-element-' . trim(esc_attr($element_type));
+    $id            = isset($id) ? $id : uniqid('gp');
 
     // Echo the opening wrapper.
     echo "<div class='getpaid-payment-form-element $wrapper_class'>";
 
     // Fires before displaying a given element type's content.
-    do_action( "getpaid_before_payment_form_{$element_type}_element", $element, $form );
+    do_action("getpaid_before_payment_form_{$element_type}_element", $element, $form);
 
     // Include the template for the element.
     include $located;
 
     // Fires after displaying a given element type's content.
-    do_action( "getpaid_payment_form_{$element_type}_element", $element, $form );
+    do_action("getpaid_payment_form_{$element_type}_element", $element, $form);
 
     // Echo the closing wrapper.
     echo '</div>';
 }
-add_action( 'getpaid_payment_form_element', 'getpaid_payment_form_element', 10, 2 );
+add_action('getpaid_payment_form_element', 'getpaid_payment_form_element', 10, 2);
 
 /**
  * Render an element's edit page.
  *
  * @param WP_Post $post
  */
-function getpaid_payment_form_edit_element_template( $post ) {
+function getpaid_payment_form_edit_element_template($post) {
 
     // Retrieve all elements.
-    $all_elements = wp_list_pluck( wpinv_get_data( 'payment-form-elements' ), 'type' );
+    $all_elements = wp_list_pluck(wpinv_get_data('payment-form-elements'), 'type');
 
-    foreach ( $all_elements as $element ) {
+    foreach ($all_elements as $element) {
 
         // Try to locate the appropriate template.
-        $element = sanitize_key( $element );
-        $located = wpinv_locate_template( "payment-forms-admin/edit/$element.php" );
+        $element = sanitize_key($element);
+        $located = wpinv_locate_template("payment-forms-admin/edit/$element.php");
 
         // Continue if this is not our element.
-        if ( empty( $located ) || ! file_exists( $located ) ) {
+        if (empty($located) || !file_exists($located)) {
             continue;
         }
 
@@ -1506,7 +1506,7 @@ 
     }
 
 }
-add_action( 'getpaid_payment_form_edit_element_template', 'getpaid_payment_form_edit_element_template' );
+add_action('getpaid_payment_form_edit_element_template', 'getpaid_payment_form_edit_element_template');
 
 /**
  * Render an element's preview.
@@ -1515,16 +1515,16 @@ 
 function getpaid_payment_form_render_element_preview_template() {
 
     // Retrieve all elements.
-    $all_elements = wp_list_pluck( wpinv_get_data( 'payment-form-elements' ), 'type' );
+    $all_elements = wp_list_pluck(wpinv_get_data('payment-form-elements'), 'type');
 
-    foreach ( $all_elements as $element ) {
+    foreach ($all_elements as $element) {
 
         // Try to locate the appropriate template.
-        $element = sanitize_key( $element );
-        $located = wpinv_locate_template( "payment-forms-admin/previews/$element.php" );
+        $element = sanitize_key($element);
+        $located = wpinv_locate_template("payment-forms-admin/previews/$element.php");
 
         // Continue if this is not our element.
-        if ( empty( $located ) || ! file_exists( $located ) ) {
+        if (empty($located) || !file_exists($located)) {
             continue;
         }
 
@@ -1535,7 +1535,7 @@ 
     }
 
 }
-add_action( 'wpinv_payment_form_render_element_template', 'getpaid_payment_form_render_element_preview_template' );
+add_action('wpinv_payment_form_render_element_template', 'getpaid_payment_form_render_element_preview_template');
 
 /**
  * Shows a list of gateways that support recurring payments.
@@ -1543,17 +1543,17 @@ 
 function wpinv_get_recurring_gateways_text() {
     $gateways = array();
 
-    foreach ( wpinv_get_payment_gateways() as $key => $gateway ) {
-        if ( wpinv_gateway_support_subscription( $key ) ) {
-            $gateways[] = sanitize_text_field( $gateway['admin_label'] );
+    foreach (wpinv_get_payment_gateways() as $key => $gateway) {
+        if (wpinv_gateway_support_subscription($key)) {
+            $gateways[] = sanitize_text_field($gateway['admin_label']);
         }
     }
 
-    if ( empty( $gateways ) ) {
-        return "<span class='form-text text-danger'>" . __( 'No active gateways support subscription payments.', 'invoicing' ) ."</span>";
+    if (empty($gateways)) {
+        return "<span class='form-text text-danger'>" . __('No active gateways support subscription payments.', 'invoicing') . "</span>";
     }
 
-    return "<span class='form-text text-muted'>" . wp_sprintf( __( 'Subscription payments only supported by: %s', 'invoicing' ), implode( ', ', $gateways ) ) ."</span>";
+    return "<span class='form-text text-muted'>" . wp_sprintf(__('Subscription payments only supported by: %s', 'invoicing'), implode(', ', $gateways)) . "</span>";
 
 }
 
@@ -1563,7 +1563,7 @@ 
  * @return GetPaid_Template
  */
 function getpaid_template() {
-    return getpaid()->get( 'template' );
+    return getpaid()->get('template');
 }
 
 /**
@@ -1572,23 +1572,23 @@ 
  * @param array args
  * @return string
  */
-function getpaid_paginate_links( $args ) {
+function getpaid_paginate_links($args) {
 
     $args['type']     = 'array';
     $args['mid_size'] = 1;
-    $pages        = paginate_links( $args );
+    $pages = paginate_links($args);
 
-    if ( ! is_array( $pages ) ) {
+    if (!is_array($pages)) {
         return '';
     }
 
     $_pages = array();
-    foreach ( $pages as $page ) {
-        $_pages[] = str_replace( 'page-numbers', 'page-link text-decoration-none', $page );
+    foreach ($pages as $page) {
+        $_pages[] = str_replace('page-numbers', 'page-link text-decoration-none', $page);
     }
 
     $links  = "<nav>\n\t<ul class='pagination justify-content-end m-0'>\n\t\t<li class='page-item'>";
-    $links .= join( "</li>\n\t\t<li class='page-item'>", $_pages );
+    $links .= join("</li>\n\t\t<li class='page-item'>", $_pages);
     $links .= "</li>\n\t</ul>\n</nav>\n";
 
     return $links;
@@ -1601,21 +1601,21 @@ 
  * @param string state
  * @return string
  */
-function getpaid_get_states_select_markup( $country, $state, $placeholder, $label, $help_text, $required = false, $wrapper_class = 'col-12', $field_name = 'wpinv_state' ) {
+function getpaid_get_states_select_markup($country, $state, $placeholder, $label, $help_text, $required = false, $wrapper_class = 'col-12', $field_name = 'wpinv_state') {
 
-    $states = wpinv_get_country_states( $country );
-    $uniqid = uniqid( '_' );
+    $states = wpinv_get_country_states($country);
+    $uniqid = uniqid('_');
 
-    if ( ! empty( $states ) ) {
+    if (!empty($states)) {
 
-        return aui()->select( array(
+        return aui()->select(array(
             'options'          => $states,
-            'name'             => esc_attr( $field_name ),
-            'id'               => sanitize_html_class( $field_name ) . $uniqid,
-            'value'            => sanitize_text_field( $state ),
+            'name'             => esc_attr($field_name),
+            'id'               => sanitize_html_class($field_name) . $uniqid,
+            'value'            => sanitize_text_field($state),
             'placeholder'      => $placeholder,
             'required'         => $required,
-            'label'            => wp_kses_post( $label ),
+            'label'            => wp_kses_post($label),
             'label_type'       => 'vertical',
             'help_text'        => $help_text,
             'class'            => 'getpaid-address-field wpinv_state',
@@ -1627,14 +1627,14 @@ 
 
     return aui()->input(
         array(
-            'name'        => esc_attr( $field_name ),
-            'id'          => sanitize_html_class( $field_name ) . $uniqid,
+            'name'        => esc_attr($field_name),
+            'id'          => sanitize_html_class($field_name) . $uniqid,
             'placeholder' => $placeholder,
             'required'    => $required,
-            'label'       => wp_kses_post( $label ),
+            'label'       => wp_kses_post($label),
             'label_type'  => 'vertical',
             'help_text'   => $help_text,
-            'value'       => sanitize_text_field( $state ),
+            'value'       => sanitize_text_field($state),
             'class'       => 'getpaid-address-field wpinv_state',
             'wrap_class'  => "$wrapper_class getpaid-address-field-wrapper__state",
             'label_class' => 'getpaid-address-field-label getpaid-address-field-label__state',
@@ -1649,16 +1649,16 @@ 
  * @param array $element
  * @return string
  */
-function getpaid_get_form_element_grid_class( $element ) {
+function getpaid_get_form_element_grid_class($element) {
 
     $class = "col-12";
-    $width = empty( $element['grid_width'] ) ? 'full' : $element['grid_width'];
+    $width = empty($element['grid_width']) ? 'full' : $element['grid_width'];
 
-    if ( $width == 'half' ) {
+    if ($width == 'half') {
         $class = "col-12 col-md-6";
     }
 
-    if ( $width == 'third' ) {
+    if ($width == 'third') {
         $class = "col-12 col-md-4";
     }
 

includes/payments/class-getpaid-payment-form-submission-taxes.php

Spacing +44 added lines, -44 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Payment form submission taxes class
@@ -35,17 +35,17 @@ 
 	 *
 	 * @param GetPaid_Payment_Form_Submission $submission
 	 */
-	public function __construct( $submission ) {
+	public function __construct($submission) {
 
 		// Validate VAT number.
-		$this->validate_vat( $submission );
+		$this->validate_vat($submission);
 
-		foreach ( $submission->get_items() as $item ) {
-			$this->process_item_tax( $item, $submission );
+		foreach ($submission->get_items() as $item) {
+			$this->process_item_tax($item, $submission);
 		}
 
 		// Process any existing invoice taxes.
-		if ( $submission->has_invoice() ) {
+		if ($submission->has_invoice()) {
 			$this->taxes = $submission->get_invoice()->get_taxes();
 		}
 
@@ -65,19 +65,19 @@ 
 	 * @param GetPaid_Form_Item $item
 	 * @param GetPaid_Payment_Form_Submission $submission
 	 */
-	public function process_item_tax( $item, $submission ) {
+	public function process_item_tax($item, $submission) {
 
-		$rate     = wpinv_get_tax_rate( $submission->country, $submission->state, $item->get_id() );
+		$rate     = wpinv_get_tax_rate($submission->country, $submission->state, $item->get_id());
 		$price    = $item->get_sub_total();
 		$item_tax = $price * $rate * 0.01;
 
-		if ( wpinv_prices_include_tax() ) {
-			$item_tax = $price - ( $price - $price * $rate * 0.01 );
+		if (wpinv_prices_include_tax()) {
+			$item_tax = $price - ($price - $price * $rate * 0.01);
 		}
 
 		$this->initial_tax += $item_tax;
 
-		if ( $item->is_recurring() ) {
+		if ($item->is_recurring()) {
 			$this->recurring_tax += $item_tax;
 		}
 
@@ -90,11 +90,11 @@ 
 	 * @since 1.0.19
 	 * @return bool
 	 */
-	public function has_digital_item( $submission ) {
+	public function has_digital_item($submission) {
 
-		foreach ( $submission->get_items() as $item ) {
+		foreach ($submission->get_items() as $item) {
 
-			if ( 'digital' == $item->get_vat_rule() ) {
+			if ('digital' == $item->get_vat_rule()) {
 				return true;
 			}
 
@@ -110,7 +110,7 @@ 
 	 * @return bool
 	 */
 	public function is_eu_store() {
-		return $this->is_eu_country( wpinv_get_default_country() );
+		return $this->is_eu_country(wpinv_get_default_country());
 	}
 
 	/**
@@ -120,8 +120,8 @@ 
 	 * @since 1.0.19
 	 * @return bool
 	 */
-	public function is_eu_country( $country ) {
-		return getpaid_is_eu_state( $country ) || getpaid_is_gst_country( $country );
+	public function is_eu_country($country) {
+		return getpaid_is_eu_state($country) || getpaid_is_gst_country($country);
 	}
 
 	/**
@@ -131,8 +131,8 @@ 
 	 * @since 1.0.19
 	 * @return bool
 	 */
-	public function is_eu_transaction( $customer_country ) {
-		return $this->is_eu_country( $customer_country ) && $this->is_eu_store();
+	public function is_eu_transaction($customer_country) {
+		return $this->is_eu_country($customer_country) && $this->is_eu_store();
 	}
 
 	/**
@@ -142,12 +142,12 @@ 
 	 * @since 1.0.19
 	 * @return string
 	 */
-	public function get_vat_number( $submission ) {
+	public function get_vat_number($submission) {
 
 		// Retrieve from the posted number.
-		$vat_number = $submission->get_field( 'wpinv_vat_number', 'billing' );
-		if ( ! empty( $vat_number ) ) {
-			return wpinv_clean( $vat_number );
+		$vat_number = $submission->get_field('wpinv_vat_number', 'billing');
+		if (!empty($vat_number)) {
+			return wpinv_clean($vat_number);
 		}
 
 		// Retrieve from the invoice.
@@ -161,12 +161,12 @@ 
 	 * @since 1.0.19
 	 * @return string
 	 */
-	public function get_company( $submission ) {
+	public function get_company($submission) {
 
 		// Retrieve from the posted data.
-		$company = $submission->get_field( 'wpinv_company', 'billing' );
-		if ( ! empty( $company ) ) {
-			return wpinv_clean( $company );
+		$company = $submission->get_field('wpinv_company', 'billing');
+		if (!empty($company)) {
+			return wpinv_clean($company);
 		}
 
 		// Retrieve from the invoice.
@@ -181,10 +181,10 @@ 
 	 * @since 1.0.19
 	 * @return string
 	 */
-	public function requires_vat( $ip_in_eu, $country_in_eu ) {
+	public function requires_vat($ip_in_eu, $country_in_eu) {
 
-		$prevent_b2c = wpinv_get_option( 'vat_prevent_b2c_purchase' );
-		$prevent_b2c = ! empty( $prevent_b2c );
+		$prevent_b2c = wpinv_get_option('vat_prevent_b2c_purchase');
+		$prevent_b2c = !empty($prevent_b2c);
 		$is_eu       = $ip_in_eu || $country_in_eu;
 
 		return $prevent_b2c && $is_eu;
@@ -196,30 +196,30 @@ 
 	 * @param GetPaid_Payment_Form_Submission $submission
 	 * @since 1.0.19
 	 */
-	public function validate_vat( $submission ) {
+	public function validate_vat($submission) {
 
-		$has_digital = $this->has_digital_item( $submission );
-		$in_eu       = $this->is_eu_transaction( $submission->country );
+		$has_digital = $this->has_digital_item($submission);
+		$in_eu       = $this->is_eu_transaction($submission->country);
 
 		// Abort if we are not validating vat numbers.
-		if ( ! $has_digital && ! $in_eu ) {
+		if (!$has_digital && !$in_eu) {
             return;
 		}
 
 		// Prepare variables.
-		$vat_number  = $this->get_vat_number( $submission );
-		$company     = $this->get_company( $submission );
+		$vat_number  = $this->get_vat_number($submission);
+		$company     = $this->get_company($submission);
 		$ip_country  = getpaid_get_ip_country();
-        $is_eu       = $this->is_eu_country( $submission->country );
-        $is_ip_eu    = $this->is_eu_country( $ip_country );
+        $is_eu       = $this->is_eu_country($submission->country);
+        $is_ip_eu    = $this->is_eu_country($ip_country);
 
 		// If we're preventing business to consumer purchases, ensure
-		if ( $this->requires_vat( $is_ip_eu, $is_eu ) && empty( $vat_number ) ) {
+		if ($this->requires_vat($is_ip_eu, $is_eu) && empty($vat_number)) {
 
 			// Ensure that a vat number has been specified.
 			throw new Exception(
 				wp_sprintf(
-					__( 'Please enter your %s number to verify your purchase is by an EU business.', 'invoicing' ),
+					__('Please enter your %s number to verify your purchase is by an EU business.', 'invoicing'),
 					getpaid_vat_name()
 				)
 			);
@@ -227,14 +227,14 @@ 
 		}
 
 		// Abort if we are not validating vat (vat number should exist, user should be in eu and business too).
-		if ( ! $is_eu || ! $in_eu || empty( $vat_number ) ) {
+		if (!$is_eu || !$in_eu || empty($vat_number)) {
             return;
 		}
 
-		$is_valid = WPInv_EUVat::validate_vat_number( $vat_number, $company, $submission->country );
+		$is_valid = WPInv_EUVat::validate_vat_number($vat_number, $company, $submission->country);
 
-		if ( is_string( $is_valid ) ) {
-			throw new Exception( $is_valid );
+		if (is_string($is_valid)) {
+			throw new Exception($is_valid);
 		}
 
 	}

includes/payments/class-getpaid-payment-form-submission.php

Spacing +108 added lines, -108 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
 	exit;
 }
 
@@ -134,8 +134,8 @@ 
 		$this->state   = wpinv_get_default_state();
 
 		// Do we have an actual submission?
-		if ( isset( $_POST['getpaid_payment_form_submission'] ) ) {
-			$this->load_data( $_POST );
+		if (isset($_POST['getpaid_payment_form_submission'])) {
+			$this->load_data($_POST);
 		}
 
 	}
@@ -145,19 +145,19 @@ 
 	 *
 	 * @param array $data
 	 */
-	public function load_data( $data ) {
+	public function load_data($data) {
 
 		// Remove slashes from the submitted data...
-		$data       = wp_unslash( $data );
+		$data       = wp_unslash($data);
 
 		// Allow plugins to filter the data.
-		$data       = apply_filters( 'getpaid_submission_data', $data, $this );
+		$data       = apply_filters('getpaid_submission_data', $data, $this);
 
 		// Cache it...
 		$this->data = $data;
 
 		// Then generate a unique id from the data.
-		$this->id   = md5( wp_json_encode( $data ) );
+		$this->id   = md5(wp_json_encode($data));
 
 		// Finally, process the submission.
 		try {
@@ -167,26 +167,26 @@ 
 			$processors = apply_filters(
 				'getpaid_payment_form_submission_processors',
 				array(
-					array( $this, 'process_payment_form' ),
-					array( $this, 'process_invoice' ),
-					array( $this, 'process_fees' ),
-					array( $this, 'process_items' ),
-					array( $this, 'process_taxes' ),
-					array( $this, 'process_discount' ),
+					array($this, 'process_payment_form'),
+					array($this, 'process_invoice'),
+					array($this, 'process_fees'),
+					array($this, 'process_items'),
+					array($this, 'process_taxes'),
+					array($this, 'process_discount'),
 				),
 				$this		
 			);
 
-			foreach ( $processors as $processor ) {
-				call_user_func_array( $processor, array( &$this ) );
+			foreach ($processors as $processor) {
+				call_user_func_array($processor, array(&$this));
 			}
 
-		} catch ( Exception $e ) {
+		} catch (Exception $e) {
 			$this->last_error = $e->getMessage();
 		}
 
 		// Fired when we are done processing a submission.
-		do_action_ref_array( 'getpaid_process_submission', array( &$this ) );
+		do_action_ref_array('getpaid_process_submission', array(&$this));
 
 	}
 
@@ -207,18 +207,18 @@ 
 	public function process_payment_form() {
 
 		// Every submission needs an active payment form.
-		if ( empty( $this->data['form_id'] ) ) {
-			throw new Exception( __( 'Missing payment form', 'invoicing' ) );
+		if (empty($this->data['form_id'])) {
+			throw new Exception(__('Missing payment form', 'invoicing'));
 		}
 
 		// Fetch the payment form.
-		$this->payment_form = new GetPaid_Payment_Form( $this->data['form_id'] );
+		$this->payment_form = new GetPaid_Payment_Form($this->data['form_id']);
 
-		if ( ! $this->payment_form->is_active() ) {
-			throw new Exception( __( 'Payment form not active', 'invoicing' ) );
+		if (!$this->payment_form->is_active()) {
+			throw new Exception(__('Payment form not active', 'invoicing'));
 		}
 
-		do_action_ref_array( 'getpaid_submissions_process_payment_form', array( &$this ) );
+		do_action_ref_array('getpaid_submissions_process_payment_form', array(&$this));
 	}
 
     /**
@@ -248,30 +248,30 @@ 
 	public function process_invoice() {
 
 		// Abort if there is no invoice.
-		if ( empty( $this->data['invoice_id'] ) ) {
+		if (empty($this->data['invoice_id'])) {
 			return;
 		}
 
 		// If the submission is for an existing invoice, ensure that it exists
 		// and that it is not paid for.
-		$invoice = wpinv_get_invoice( $this->data['invoice_id'] );
+		$invoice = wpinv_get_invoice($this->data['invoice_id']);
 
-        if ( empty( $invoice ) ) {
-			throw new Exception( __( 'Invalid invoice', 'invoicing' ) );
+        if (empty($invoice)) {
+			throw new Exception(__('Invalid invoice', 'invoicing'));
 		}
 
-		if ( $invoice->is_paid() ) {
-			throw new Exception( __( 'This invoice is already paid for.', 'invoicing' ) );
+		if ($invoice->is_paid()) {
+			throw new Exception(__('This invoice is already paid for.', 'invoicing'));
 		}
 
-		$this->payment_form->set_items( $invoice->get_items() );
+		$this->payment_form->set_items($invoice->get_items());
 		$this->payment_form->invoice = $invoice;
 
 		$this->country = $invoice->get_country();
 		$this->state   = $invoice->get_state();
 		$this->invoice = $invoice;
 
-		do_action_ref_array( 'getpaid_submissions_process_invoice', array( &$this ) );
+		do_action_ref_array('getpaid_submissions_process_invoice', array(&$this));
 	}
 
 	/**
@@ -291,7 +291,7 @@ 
 	 * @return bool
 	 */
 	public function has_invoice() {
-		return ! empty( $this->invoice );
+		return !empty($this->invoice);
 	}
 
 	/*
@@ -310,13 +310,13 @@ 
 	 */
 	public function process_items() {
 
-		$processor = new GetPaid_Payment_Form_Submission_Items( $this );
+		$processor = new GetPaid_Payment_Form_Submission_Items($this);
 
-		foreach ( $processor->items as $item ) {
-			$this->add_item( $item );
+		foreach ($processor->items as $item) {
+			$this->add_item($item);
 		}
 
-		do_action_ref_array( 'getpaid_submissions_process_items', array( &$this ) );
+		do_action_ref_array('getpaid_submissions_process_items', array(&$this));
 	}
 
 	/**
@@ -325,18 +325,18 @@ 
 	 * @since 1.0.19
 	 * @param GetPaid_Form_Item $item
 	 */
-	public function add_item( $item ) {
+	public function add_item($item) {
 
 		// Make sure that it is available for purchase.
-		if ( ! $item->can_purchase() ) {
+		if (!$item->can_purchase()) {
 			return;
 		}
 
 		// Each submission can only contain one recurring item.
-		if ( $item->is_recurring() ) {
+		if ($item->is_recurring()) {
 
-			if ( $this->has_recurring != 0 ) {
-				throw new Exception( __( 'You can only buy one recurring item at a time.', 'invoicing' ) );
+			if ($this->has_recurring != 0) {
+				throw new Exception(__('You can only buy one recurring item at a time.', 'invoicing'));
 			}
 
 			$this->has_recurring = $item->get_id();
@@ -344,7 +344,7 @@ 
 		}
 
 		// Update the items and totals.
-		$this->items[ $item->get_id() ]         = $item;
+		$this->items[$item->get_id()]         = $item;
 		$this->totals['subtotal']['initial']   += $item->get_sub_total();
 		$this->totals['subtotal']['recurring'] += $item->get_recurring_sub_total();
 
@@ -358,17 +358,17 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_item( $item_id ) {
+	public function remove_item($item_id) {
 
-		if ( isset( $this->items[ $item_id ] ) ) {
-			$this->totals['subtotal']['initial']   -= $this->items[ $item_id ]->get_sub_total();
-			$this->totals['subtotal']['recurring'] -= $this->items[ $item_id ]->get_recurring_sub_total();
+		if (isset($this->items[$item_id])) {
+			$this->totals['subtotal']['initial']   -= $this->items[$item_id]->get_sub_total();
+			$this->totals['subtotal']['recurring'] -= $this->items[$item_id]->get_recurring_sub_total();
 
-			if ( $this->items[ $item_id ]->is_recurring() ) {
+			if ($this->items[$item_id]->is_recurring()) {
 				$this->has_recurring = 0;
 			}
 
-			unset( $this->items[ $item_id ] );
+			unset($this->items[$item_id]);
 		}
 		
 	}
@@ -418,28 +418,28 @@ 
 	public function process_taxes() {
 
 		// Abort if we're not using taxes.
-		if ( ! $this->use_taxes() ) {
+		if (!$this->use_taxes()) {
 			return;
 		}
 
 		// If a custom country && state has been passed in, use it to calculate taxes.
-		$country = $this->get_field( 'wpinv_country', 'billing' );
-		if ( ! empty( $country ) ) {
+		$country = $this->get_field('wpinv_country', 'billing');
+		if (!empty($country)) {
 			$this->country = $country;
 		}
 
-		$state = $this->get_field( 'wpinv_state', 'billing' );
-		if ( ! empty( $state ) ) {
+		$state = $this->get_field('wpinv_state', 'billing');
+		if (!empty($state)) {
 			$this->state = $state;
 		}
 
-		$processor = new GetPaid_Payment_Form_Submission_Taxes( $this );
+		$processor = new GetPaid_Payment_Form_Submission_Taxes($this);
 
-		foreach ( $processor->taxes as $tax ) {
-			$this->add_tax( $tax );
+		foreach ($processor->taxes as $tax) {
+			$this->add_tax($tax);
 		}
 
-		do_action_ref_array( 'getpaid_submissions_process_taxes', array( &$this ) );
+		do_action_ref_array('getpaid_submissions_process_taxes', array(&$this));
 	}
 
 	/**
@@ -448,10 +448,10 @@ 
 	 * @param array $tax An array of tax details. name, initial_tax, and recurring_tax are required.
 	 * @since 1.0.19
 	 */
-	public function add_tax( $tax ) {
-		$this->taxes[ $tax['name'] ]         = $tax;
-		$this->totals['taxes']['initial']   += wpinv_sanitize_amount( $tax['initial_tax'] );
-		$this->totals['taxes']['recurring'] += wpinv_sanitize_amount( $tax['recurring_tax'] );
+	public function add_tax($tax) {
+		$this->taxes[$tax['name']]         = $tax;
+		$this->totals['taxes']['initial']   += wpinv_sanitize_amount($tax['initial_tax']);
+		$this->totals['taxes']['recurring'] += wpinv_sanitize_amount($tax['recurring_tax']);
 	}
 
 	/**
@@ -459,12 +459,12 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_tax( $tax_name ) {
+	public function remove_tax($tax_name) {
 
-		if ( isset( $this->taxes[ $tax_name ] ) ) {
-			$this->totals['taxes']['initial']   -= $this->taxes[ $tax_name ]['initial_tax'];
-			$this->totals['taxes']['recurring'] -= $this->taxes[ $tax_name ]['recurring_tax'];
-			unset( $this->taxes[ $tax_name ] );
+		if (isset($this->taxes[$tax_name])) {
+			$this->totals['taxes']['initial']   -= $this->taxes[$tax_name]['initial_tax'];
+			$this->totals['taxes']['recurring'] -= $this->taxes[$tax_name]['recurring_tax'];
+			unset($this->taxes[$tax_name]);
 		}
 
 	}
@@ -478,11 +478,11 @@ 
 
 		$use_taxes = wpinv_use_taxes();
 
-		if ( $this->has_invoice() && ! $this->invoice->is_taxable() ) {
+		if ($this->has_invoice() && !$this->invoice->is_taxable()) {
 			$use_taxes = false;
 		}
 
-		return apply_filters( 'getpaid_submission_use_taxes', $use_taxes, $this );
+		return apply_filters('getpaid_submission_use_taxes', $use_taxes, $this);
 
 	}
 
@@ -531,13 +531,13 @@ 
 
 		$initial_total    = $this->get_subtotal() + $this->get_fee() + $this->get_tax();
 		$recurring_total  = $this->get_recurring_subtotal() + $this->get_recurring_fee() + $this->get_recurring_tax();
-		$processor        = new GetPaid_Payment_Form_Submission_Discount( $this, $initial_total, $recurring_total );
+		$processor        = new GetPaid_Payment_Form_Submission_Discount($this, $initial_total, $recurring_total);
 
-		foreach ( $processor->discounts as $discount ) {
-			$this->add_discount( $discount );
+		foreach ($processor->discounts as $discount) {
+			$this->add_discount($discount);
 		}
 
-		do_action_ref_array( 'getpaid_submissions_process_discounts', array( &$this ) );
+		do_action_ref_array('getpaid_submissions_process_discounts', array(&$this));
 	}
 
 	/**
@@ -546,10 +546,10 @@ 
 	 * @param array $discount An array of discount details. name, initial_discount, and recurring_discount are required. Include discount_code if the discount is from a discount code.
 	 * @since 1.0.19
 	 */
-	public function add_discount( $discount ) {
-		$this->discounts[ $discount['name'] ]   = $discount;
-		$this->totals['discount']['initial']   += wpinv_sanitize_amount( $discount['initial_discount'] );
-		$this->totals['discount']['recurring'] += wpinv_sanitize_amount( $discount['recurring_discount'] );
+	public function add_discount($discount) {
+		$this->discounts[$discount['name']]   = $discount;
+		$this->totals['discount']['initial']   += wpinv_sanitize_amount($discount['initial_discount']);
+		$this->totals['discount']['recurring'] += wpinv_sanitize_amount($discount['recurring_discount']);
 	}
 
 	/**
@@ -557,12 +557,12 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_discount( $name ) {
+	public function remove_discount($name) {
 
-		if ( isset( $this->discounts[ $name ] ) ) {
-			$this->totals['discount']['initial']   -= $this->discounts[ $name ]['initial_discount'];
-			$this->totals['discount']['recurring'] -= $this->discounts[ $name ]['recurring_discount'];
-			unset( $this->discounts[ $name ] );
+		if (isset($this->discounts[$name])) {
+			$this->totals['discount']['initial']   -= $this->discounts[$name]['initial_discount'];
+			$this->totals['discount']['recurring'] -= $this->discounts[$name]['recurring_discount'];
+			unset($this->discounts[$name]);
 		}
 
 	}
@@ -574,7 +574,7 @@ 
 	 * @return bool
 	 */
 	public function has_discount_code() {
-		return ! empty( $this->discounts['discount_code'] );
+		return !empty($this->discounts['discount_code']);
 	}
 
 	/**
@@ -631,13 +631,13 @@ 
 	 */
 	public function process_fees() {
 
-		$fees_processor = new GetPaid_Payment_Form_Submission_Fees( $this );
+		$fees_processor = new GetPaid_Payment_Form_Submission_Fees($this);
 
-		foreach ( $fees_processor->fees as $fee ) {
-			$this->add_fee( $fee );
+		foreach ($fees_processor->fees as $fee) {
+			$this->add_fee($fee);
 		}
 
-		do_action_ref_array( 'getpaid_submissions_process_fees', array( &$this ) );
+		do_action_ref_array('getpaid_submissions_process_fees', array(&$this));
 	}
 
 	/**
@@ -646,11 +646,11 @@ 
 	 * @param array $fee An array of fee details. name, initial_fee, and recurring_fee are required.
 	 * @since 1.0.19
 	 */
-	public function add_fee( $fee ) {
+	public function add_fee($fee) {
 
-		$this->fees[ $fee['name'] ]         = $fee;
-		$this->totals['fees']['initial']   += wpinv_sanitize_amount( $fee['initial_fee'] );
-		$this->totals['fees']['recurring'] += wpinv_sanitize_amount( $fee['recurring_fee'] );
+		$this->fees[$fee['name']]         = $fee;
+		$this->totals['fees']['initial']   += wpinv_sanitize_amount($fee['initial_fee']);
+		$this->totals['fees']['recurring'] += wpinv_sanitize_amount($fee['recurring_fee']);
 
 	}
 
@@ -659,12 +659,12 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_fee( $name ) {
+	public function remove_fee($name) {
 
-		if ( isset( $this->fees[ $name ] ) ) {
-			$this->totals['fees']['initial']   -= $this->fees[ $name ]['initial_fee'];
-			$this->totals['fees']['recurring'] -= $this->fees[ $name ]['recurring_fee'];
-			unset( $this->fees[ $name ] );
+		if (isset($this->fees[$name])) {
+			$this->totals['fees']['initial']   -= $this->fees[$name]['initial_fee'];
+			$this->totals['fees']['recurring'] -= $this->fees[$name]['recurring_fee'];
+			unset($this->fees[$name]);
 		}
 
 	}
@@ -703,7 +703,7 @@ 
 	 * @since 1.0.19
 	 */
 	public function has_fees() {
-		return count( $this->fees ) !== 0;
+		return count($this->fees) !== 0;
 	}
 
 	/*
@@ -721,7 +721,7 @@ 
 	 */
 	public function get_total() {
 		$total = $this->get_subtotal() + $this->get_fee() + $this->get_tax() - $this->get_discount();
-		return max( $total, 0 );
+		return max($total, 0);
 	}
 
 	/**
@@ -731,7 +731,7 @@ 
 	 */
 	public function get_recurring_total() {
 		$total = $this->get_recurring_subtotal() + $this->get_recurring_fee() + $this->get_recurring_tax() - $this->get_recurring_discount();
-		return max( $total, 0 );
+		return max($total, 0);
 	}
 
 	/**
@@ -743,12 +743,12 @@ 
 		$initial   = $this->get_total();
 		$recurring = $this->get_recurring_total();
 
-		if ( $this->has_recurring == 0 ) {
+		if ($this->has_recurring == 0) {
 			$recurring = 0;
 		}
 
 		$collect = $initial > 0 || $recurring > 0;
-		return apply_filters( 'getpaid_submission_should_collect_payment_details', $collect, $this  );
+		return apply_filters('getpaid_submission_should_collect_payment_details', $collect, $this);
 	}
 
 	/**
@@ -757,7 +757,7 @@ 
 	 * @since 1.0.19
 	 */
 	public function get_billing_email() {
-		return apply_filters( 'getpaid_get_submission_billing_email', $this->get_field( 'billing_email' ), $this  );
+		return apply_filters('getpaid_get_submission_billing_email', $this->get_field('billing_email'), $this);
 	}
 
 	/**
@@ -767,7 +767,7 @@ 
 	 */
 	public function has_billing_email() {
 		$billing_email = $this->get_billing_email();
-		return ! empty( $billing_email ) && is_email( $billing_email );
+		return !empty($billing_email) && is_email($billing_email);
 	}
 
 	/**
@@ -797,8 +797,8 @@ 
 	 * @since 1.0.19
 	 * @return mixed|null
 	 */
-	public function get_field( $field, $sub_array_key = null ) {
-		return getpaid_get_array_field( $this->data, $field, $sub_array_key );
+	public function get_field($field, $sub_array_key = null) {
+		return getpaid_get_array_field($this->data, $field, $sub_array_key);
 	}
 
 	/**
@@ -806,8 +806,8 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function is_required_field_set( $field ) {
-		return empty( $field['required'] ) || ! empty( $this->data[ $field['id'] ] );
+	public function is_required_field_set($field) {
+		return empty($field['required']) || !empty($this->data[$field['id']]);
 	}
 
 	/**
@@ -815,8 +815,8 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function format_amount( $amount ) {
-		return wpinv_price( $amount, $this->get_currency() );
+	public function format_amount($amount) {
+		return wpinv_price($amount, $this->get_currency());
 	}
 
 }

includes/payments/class-getpaid-checkout.php

Spacing +97 added lines, -97 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Main Checkout Class.
@@ -22,7 +22,7 @@ 
 	 * 
 	 * @param GetPaid_Payment_Form_Submission $submission
 	 */
-	public function __construct( $submission ) {
+	public function __construct($submission) {
 		$this->payment_form_submission = $submission;
 	}
 
@@ -38,19 +38,19 @@ 
 		// Prepare the invoice.
 		$items      = $this->get_submission_items();
 		$invoice    = $this->get_submission_invoice();
-		$invoice    = $this->process_submission_invoice( $invoice, $items );
+		$invoice    = $this->process_submission_invoice($invoice, $items);
 		$prepared   = $this->prepare_submission_data_for_saving();
 
-		$this->prepare_billing_info( $invoice );
+		$this->prepare_billing_info($invoice);
 
-		$shipping   = $this->prepare_shipping_info( $invoice );
+		$shipping = $this->prepare_shipping_info($invoice);
 
 		// Save the invoice.
 		$invoice->recalculate_total();
         $invoice->save();
 
 		// Send to the gateway.
-		$this->post_process_submission( $invoice, $prepared, $shipping );
+		$this->post_process_submission($invoice, $prepared, $shipping);
 	}
 
 	/**
@@ -63,34 +63,34 @@ 
 		$data       = $submission->get_data();
 
 		// Do we have an error?
-        if ( ! empty( $submission->last_error ) ) {
-			wp_send_json_error( $submission->last_error );
+        if (!empty($submission->last_error)) {
+			wp_send_json_error($submission->last_error);
         }
 
 		// We need a billing email.
-        if ( ! $submission->has_billing_email() ) {
-            wp_send_json_error( __( 'Provide a valid billing email.', 'invoicing' ) );
+        if (!$submission->has_billing_email()) {
+            wp_send_json_error(__('Provide a valid billing email.', 'invoicing'));
 		}
 
 		// Non-recurring gateways should not be allowed to process recurring invoices.
-		if ( $submission->should_collect_payment_details() && $submission->has_recurring && ! wpinv_gateway_support_subscription( $data['wpi-gateway'] ) ) {
-			wp_send_json_error( __( 'The selected payment gateway does not support subscription payments.', 'invoicing' ) );
+		if ($submission->should_collect_payment_details() && $submission->has_recurring && !wpinv_gateway_support_subscription($data['wpi-gateway'])) {
+			wp_send_json_error(__('The selected payment gateway does not support subscription payments.', 'invoicing'));
 		}
 
 		// Ensure the gateway is active.
-		if ( $submission->should_collect_payment_details() && ! wpinv_is_gateway_active( $data['wpi-gateway'] ) ) {
-			wpinv_set_error( 'invalid_gateway', __( 'The selected payment gateway is not active', 'invoicing' ) );
+		if ($submission->should_collect_payment_details() && !wpinv_is_gateway_active($data['wpi-gateway'])) {
+			wpinv_set_error('invalid_gateway', __('The selected payment gateway is not active', 'invoicing'));
 		}
 
 		// Clear any existing errors.
 		wpinv_clear_errors();
 
 		// Allow themes and plugins to hook to errors
-		do_action( 'getpaid_checkout_error_checks', $submission );
+		do_action('getpaid_checkout_error_checks', $submission);
 
 		// Do we have any errors?
-        if ( wpinv_get_errors() ) {
-            wp_send_json_error( getpaid_get_errors_html() );
+        if (wpinv_get_errors()) {
+            wp_send_json_error(getpaid_get_errors_html());
 		}
 
 	}
@@ -105,8 +105,8 @@ 
 		$items = $this->payment_form_submission->get_items();
 
         // Ensure that we have items.
-        if ( empty( $items ) && ! $this->payment_form_submission->has_fees() ) {
-            wp_send_json_error( __( 'Please provide at least one item or amount.', 'invoicing' ) );
+        if (empty($items) && !$this->payment_form_submission->has_fees()) {
+            wp_send_json_error(__('Please provide at least one item or amount.', 'invoicing'));
 		}
 
 		return $items;
@@ -120,17 +120,17 @@ 
 	protected function get_submission_invoice() {
 		$submission = $this->payment_form_submission;
 
-		if ( ! $submission->has_invoice() ) {
+		if (!$submission->has_invoice()) {
 			$invoice = new WPInv_Invoice();
-			$invoice->created_via( 'payment_form' );
+			$invoice->created_via('payment_form');
 			return $invoice;
         }
 
 		$invoice = $submission->get_invoice();
 
 		// Make sure that it is neither paid or refunded.
-		if ( $invoice->is_paid() || $invoice->is_refunded() ) {
-			wp_send_json_error( __( 'This invoice has already been paid for.', 'invoicing' ) );
+		if ($invoice->is_paid() || $invoice->is_refunded()) {
+			wp_send_json_error(__('This invoice has already been paid for.', 'invoicing'));
 		}
 
 		return $invoice;
@@ -143,26 +143,26 @@ 
 	 * @param GetPaid_Form_Item[] $items
 	 * @return WPInv_Invoice
 	 */
-	protected function process_submission_invoice( $invoice, $items ) {
+	protected function process_submission_invoice($invoice, $items) {
 
 		$submission = $this->payment_form_submission;
 		$data       = $submission->get_data();
 
 		// Set-up the invoice details.
-		$invoice->set_email( sanitize_email( $submission->get_billing_email() ) );
-		$invoice->set_user_id( $this->get_submission_customer() );
-		$invoice->set_payment_form( absint( $submission->get_payment_form()->get_id() ) );
-        $invoice->set_items( $items );
-        $invoice->set_fees( $submission->get_fees() );
-        $invoice->set_taxes( $submission->get_taxes() );
-		$invoice->set_discounts( $submission->get_discounts() );
-		$invoice->set_gateway( $data['wpi-gateway'] );
-
-		if ( $submission->has_discount_code() ) {
-            $invoice->set_discount_code( $submission->get_discount_code() );
+		$invoice->set_email(sanitize_email($submission->get_billing_email()));
+		$invoice->set_user_id($this->get_submission_customer());
+		$invoice->set_payment_form(absint($submission->get_payment_form()->get_id()));
+        $invoice->set_items($items);
+        $invoice->set_fees($submission->get_fees());
+        $invoice->set_taxes($submission->get_taxes());
+		$invoice->set_discounts($submission->get_discounts());
+		$invoice->set_gateway($data['wpi-gateway']);
+
+		if ($submission->has_discount_code()) {
+            $invoice->set_discount_code($submission->get_discount_code());
 		}
 
-		getpaid_maybe_add_default_address( $invoice );
+		getpaid_maybe_add_default_address($invoice);
 		return $invoice;
 	}
 
@@ -175,26 +175,26 @@ 
 		$submission = $this->payment_form_submission;
 
 		// If this is an existing invoice...
-		if ( $submission->has_invoice() ) {
+		if ($submission->has_invoice()) {
 			return $submission->get_invoice()->get_user_id();
 		}
 
 		// (Maybe) create the user.
         $user = get_current_user_id();
 
-        if ( empty( $user ) ) {
-            $user = get_user_by( 'email', $submission->get_billing_email() );
+        if (empty($user)) {
+            $user = get_user_by('email', $submission->get_billing_email());
         }
 
-        if ( empty( $user ) ) {
-            $user = wpinv_create_user( $submission->get_billing_email() );
+        if (empty($user)) {
+            $user = wpinv_create_user($submission->get_billing_email());
         }
 
-        if ( is_wp_error( $user ) ) {
-            wp_send_json_error( $user->get_error_message() );
+        if (is_wp_error($user)) {
+            wp_send_json_error($user->get_error_message());
         }
 
-        if ( is_numeric( $user ) ) {
+        if (is_numeric($user)) {
             return $user;
 		}
 
@@ -215,30 +215,30 @@ 
         $prepared = array();
 
         // Raw submission details.
-		$data     = $submission->get_data();
+		$data = $submission->get_data();
 
 		// Loop through the submitted details.
-        foreach ( $submission->get_payment_form()->get_elements() as $field ) {
+        foreach ($submission->get_payment_form()->get_elements() as $field) {
 
 			// Skip premade fields.
-            if ( ! empty( $field['premade'] ) || $field['type'] == 'address' ) {
+            if (!empty($field['premade']) || $field['type'] == 'address') {
                 continue;
             }
 
             // If it is required and not set, abort.
-            if ( ! $submission->is_required_field_set( $field ) ) {
-                wp_send_json_error( __( 'Please fill all required fields.', 'invoicing' ) );
+            if (!$submission->is_required_field_set($field)) {
+                wp_send_json_error(__('Please fill all required fields.', 'invoicing'));
             }
 
             // Handle misc fields.
-            if ( isset( $data[ $field['id'] ] ) ) {
+            if (isset($data[$field['id']])) {
                 $label = $field['id'];
 
-                if ( isset( $field['label'] ) ) {
+                if (isset($field['label'])) {
                     $label = $field['label'];
                 }
 
-				$prepared[ wpinv_clean( $label ) ] = wp_kses_post( $data[ $field['id'] ] );
+				$prepared[wpinv_clean($label)] = wp_kses_post($data[$field['id']]);
 
             }
 
@@ -255,30 +255,30 @@ 
 	 * @param WPInv_Invoice $invoice
 	 * @param string $type
      */
-    public function prepare_address_details( $invoice, $type = 'billing' ) {
+    public function prepare_address_details($invoice, $type = 'billing') {
 
 		$data     = $this->payment_form_submission->get_data();
-		$type     = sanitize_key( $type );
+		$type     = sanitize_key($type);
 		$address  = array();
 		$prepared = array();
 
-		if ( ! empty( $data[ $type ] ) ) {
-			$address = $data[ $type ];
+		if (!empty($data[$type])) {
+			$address = $data[$type];
 		}
 
 		// Clean address details.
-		foreach ( $address as $key => $value ) {
-			$key             = sanitize_key( $key );
-			$key             = str_replace( 'wpinv_', '', $key );
-			$value           = wpinv_clean( $value );
-			$prepared[ $key] = apply_filters( "getpaid_checkout_{$type}_address_$key", $value, $this->payment_form_submission, $invoice );
+		foreach ($address as $key => $value) {
+			$key             = sanitize_key($key);
+			$key             = str_replace('wpinv_', '', $key);
+			$value           = wpinv_clean($value);
+			$prepared[$key] = apply_filters("getpaid_checkout_{$type}_address_$key", $value, $this->payment_form_submission, $invoice);
 		}
 
 		// Filter address details.
-		$prepared = apply_filters( "getpaid_checkout_{$type}_address", $prepared, $this->payment_form_submission, $invoice );
+		$prepared = apply_filters("getpaid_checkout_{$type}_address", $prepared, $this->payment_form_submission, $invoice);
 
 		// Remove non-whitelisted values.
-		return array_filter( $prepared, 'getpaid_is_address_field_whitelisted', ARRAY_FILTER_USE_KEY );
+		return array_filter($prepared, 'getpaid_is_address_field_whitelisted', ARRAY_FILTER_USE_KEY);
 
 	}
 
@@ -288,12 +288,12 @@ 
 	 * @return array
 	 * @param WPInv_Invoice $invoice
      */
-    protected function prepare_billing_info( &$invoice ) {
+    protected function prepare_billing_info(&$invoice) {
 
-		$billing_address = $this->prepare_address_details( $invoice, 'billing' );
+		$billing_address = $this->prepare_address_details($invoice, 'billing');
 
 		// Update the invoice with the billing details.
-		$invoice->set_props( $billing_address );
+		$invoice->set_props($billing_address);
 
 	}
 
@@ -303,15 +303,15 @@ 
 	 * @return array
 	 * @param WPInv_Invoice $invoice
      */
-    protected function prepare_shipping_info( $invoice ) {
+    protected function prepare_shipping_info($invoice) {
 
 		$data = $this->payment_form_submission->get_data();
 
-		if ( empty( $data['same-shipping-address'] ) ) {
-			return $this->prepare_address_details( $invoice, 'shipping' );
+		if (empty($data['same-shipping-address'])) {
+			return $this->prepare_address_details($invoice, 'shipping');
 		}
 
-		return $this->prepare_address_details( $invoice, 'billing' );
+		return $this->prepare_address_details($invoice, 'billing');
 
 	}
 
@@ -322,27 +322,27 @@ 
 	 * @param array $prepared_payment_form_data
 	 * @param array $shipping
 	 */
-	protected function post_process_submission( $invoice, $prepared_payment_form_data, $shipping ) {
+	protected function post_process_submission($invoice, $prepared_payment_form_data, $shipping) {
 
 		// Ensure the invoice exists.
-        if ( ! $invoice->exists() ) {
-            wp_send_json_error( __( 'An error occured while saving your invoice. Please try again.', 'invoicing' ) );
+        if (!$invoice->exists()) {
+            wp_send_json_error(__('An error occured while saving your invoice. Please try again.', 'invoicing'));
         }
 
         // Save payment form data.
-        if ( ! empty( $prepared_payment_form_data ) ) {
-            update_post_meta( $invoice->get_id(), 'payment_form_data', $prepared_payment_form_data );
+        if (!empty($prepared_payment_form_data)) {
+            update_post_meta($invoice->get_id(), 'payment_form_data', $prepared_payment_form_data);
 		}
 
 		// Save payment form data.
-        if ( ! empty( $shipping ) ) {
-            update_post_meta( $invoice->get_id(), 'shipping_address', $shipping );
+        if (!empty($shipping)) {
+            update_post_meta($invoice->get_id(), 'shipping_address', $shipping);
 		}
 
 		// Backwards compatibility.
-        add_filter( 'wp_redirect', array( $this, 'send_redirect_response' ) );
+        add_filter('wp_redirect', array($this, 'send_redirect_response'));
 
-		$this->process_payment( $invoice );
+		$this->process_payment($invoice);
 
         // If we are here, there was an error.
 		wpinv_send_back_to_checkout();
@@ -354,41 +354,41 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	protected function process_payment( $invoice ) {
+	protected function process_payment($invoice) {
 
 		// Clear any checkout errors.
 		wpinv_clear_errors();
 
 		// No need to send free invoices to the gateway.
-		if ( $invoice->is_free() ) {
-			$this->process_free_payment( $invoice );
+		if ($invoice->is_free()) {
+			$this->process_free_payment($invoice);
 		}
 
 		$submission = $this->payment_form_submission;
 
 		// Fires before sending to the gateway.
-		do_action( 'getpaid_checkout_before_gateway', $invoice, $submission );
+		do_action('getpaid_checkout_before_gateway', $invoice, $submission);
 
 		// Allow the sumission data to be modified before it is sent to the gateway.
 		$submission_data    = $submission->get_data();
-		$submission_gateway = apply_filters( 'getpaid_gateway_submission_gateway', $invoice->get_gateway(), $submission, $invoice );
-		$submission_data    = apply_filters( 'getpaid_gateway_submission_data', $submission_data, $submission, $invoice );
+		$submission_gateway = apply_filters('getpaid_gateway_submission_gateway', $invoice->get_gateway(), $submission, $invoice);
+		$submission_data    = apply_filters('getpaid_gateway_submission_data', $submission_data, $submission, $invoice);
 
 		// Validate the currency.
-		if ( ! apply_filters( "getpaid_gateway_{$submission_gateway}_is_valid_for_currency", true, $invoice->get_currency() ) ) {
-			wpinv_set_error( 'invalid_currency', __( 'The chosen payment gateway does not support this currency', 'invoicing' ) );
+		if (!apply_filters("getpaid_gateway_{$submission_gateway}_is_valid_for_currency", true, $invoice->get_currency())) {
+			wpinv_set_error('invalid_currency', __('The chosen payment gateway does not support this currency', 'invoicing'));
 		}
 
 		// Check to see if we have any errors.
-		if ( wpinv_get_errors() ) {
+		if (wpinv_get_errors()) {
 			wpinv_send_back_to_checkout();
 		}
 
 		// Send info to the gateway for payment processing
-		do_action( "getpaid_gateway_$submission_gateway", $invoice, $submission_data, $submission );
+		do_action("getpaid_gateway_$submission_gateway", $invoice, $submission_data, $submission);
 
 		// Backwards compatibility.
-		wpinv_send_to_gateway( $submission_gateway, $invoice );
+		wpinv_send_to_gateway($submission_gateway, $invoice);
 
 	}
 
@@ -397,12 +397,12 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	protected function process_free_payment( $invoice ) {
+	protected function process_free_payment($invoice) {
 
-		$invoice->set_gateway( 'none' );
-		$invoice->add_note( __( "This is a free invoice and won't be sent to the payment gateway", 'invoicing' ), false, false, true );
+		$invoice->set_gateway('none');
+		$invoice->add_note(__("This is a free invoice and won't be sent to the payment gateway", 'invoicing'), false, false, true);
 		$invoice->mark_paid();
-		wpinv_send_to_success_page( array( 'invoice_key' => $invoice->get_key() ) );
+		wpinv_send_to_success_page(array('invoice_key' => $invoice->get_key()));
 
 	}
 
@@ -410,9 +410,9 @@ 
      * Sends a redrect response to payment details.
      *
      */
-    public function send_redirect_response( $url ) {
-        $url = urlencode( $url );
-        wp_send_json_success( $url );
+    public function send_redirect_response($url) {
+        $url = urlencode($url);
+        wp_send_json_success($url);
     }
 
 }