AyeCode / invoicing

includes/admin/class-wpinv-subscriptions-list-table.php

Indentation +419 added lines, -419 removed lines

@@ -6,7 +6,7 @@ 
 if ( ! defined( 'ABSPATH' ) ) exit;
 
 if ( ! class_exists( 'WP_List_Table' ) ) {
-	include_once ABSPATH . 'wp-admin/includes/class-wp-list-table.php';
+    include_once ABSPATH . 'wp-admin/includes/class-wp-list-table.php';
 }
 
 /**
@@ -14,423 +14,423 @@ 
  */
 class WPInv_Subscription_Lists_Table extends WP_List_Table {
 
-	/**
-	 * URL of this page
-	 *
-	 * @var   string
-	 * @since 1.0.19
-	 */
-	public $base_url;
-
-	/**
-	 * Query
-	 *
-	 * @var   GetPaid_Subscriptions_Query
-	 * @since 1.0.19
-	 */
-	public $query;
-
-	/**
-	 * Total subscriptions
-	 *
-	 * @var   string
-	 * @since 1.0.0
-	 */
-	public $total_count;
-
-	/**
-	 * Current status subscriptions
-	 *
-	 * @var   string
-	 * @since 1.0.0
-	 */
-	public $current_total_count;
-
-	/**
-	 * Status counts
-	 *
-	 * @var   array
-	 * @since 1.0.19
-	 */
-	public $status_counts;
-
-	/**
-	 * Number of results to show per page
-	 *
-	 * @var   int
-	 * @since 1.0.0
-	 */
-	public $per_page = 10;
-
-	/**
-	 *  Constructor function.
-	 */
-	public function __construct() {
-
-		parent::__construct(
-			array(
-				'singular' => 'subscription',
-				'plural'   => 'subscriptions',
-			)
-		);
-
-		$this->process_bulk_action();
-
-		$this->prepare_query();
-
-		$this->base_url = remove_query_arg( 'status' );
-
-	}
-
-	/**
-	 *  Prepares the display query
-	 */
-	public function prepare_query() {
-
-		// Prepare query args.
-		$query = array(
-			'number'  => $this->per_page,
-			'paged'   => $this->get_paged(),
-			'status'  => ( isset( $_GET['status'] ) && array_key_exists( $_GET['status'], getpaid_get_subscription_statuses() ) ) ? $_GET['status'] : 'all',
-			'orderby' => ( isset( $_GET['orderby'] ) ) ? $_GET['orderby'] : 'id',
-			'order'   => ( isset( $_GET['order'] ) ) ? $_GET['order'] : 'DESC',
-		);
-
-		// Prepare class properties.
-		$this->query               = new GetPaid_Subscriptions_Query( $query );
-		$this->total_count         = $this->query->get_total();
-		$this->current_total_count = $this->query->get_total();
-		$this->items               = $this->query->get_results();
-		$this->status_counts       = getpaid_get_subscription_status_counts( $query );
-
-		if ( 'all' != $query['status'] ) {
-			unset( $query['status'] );
-			$this->total_count   = getpaid_get_subscriptions( $query, 'count' );
-		}
-
-	}
-
-	/**
-	 * Gets the list of views available on this table.
-	 *
-	 * The format is an associative array:
-	 * - `'id' => 'link'`
-	 *
-	 * @since 1.0.0
-	 *
-	 * @return array
-	 */
-	protected function get_views() {
-
-		$current  = isset( $_GET['status'] ) ? $_GET['status'] : 'all';
-		$views    = array(
-
-			'all' => sprintf(
-				'<a href="%s" %s>%s&nbsp;<span class="count">(%d)</span></a>',
-				esc_url( add_query_arg( 'status', false, $this->base_url ) ),
-				$current === 'all' ? ' class="current"' : '',
-				__('All','invoicing' ),
-				$this->total_count
-			)
-
-		);
-
-		foreach ( array_filter( $this->status_counts ) as $status => $count ) {
-
-			$views[ $status ] = sprintf(
-				'<a href="%s" %s>%s&nbsp;<span class="count">(%d)</span></a>',
-				esc_url( add_query_arg( 'status', urlencode( $status ), $this->base_url ) ),
-				$current === $status ? ' class="current"' : '',
-				sanitize_text_field( getpaid_get_subscription_status_label( $status ) ),
-				$count
-			);
-
-		}
-
-		return $views;
-
-	}
-
-	/**
-	 * Render most columns
-	 *
-	 * @access      private
-	 * @since       1.0.0
-	 * @return      string
-	 */
-	public function column_default( $item, $column_name ) {
-		return apply_filters( "getpaid_subscriptions_table_column_$column_name", $item->$column_name );
-	}
-
-	/**
-	 * This is how checkbox column renders.
-	 *
-	 * @param WPInv_Subscription $item
-	 * @return string
-	 */
-	public function column_cb( $item ) {
-		return sprintf( '<input type="checkbox" name="id[]" value="%s" />', esc_html( $item->get_id() ) );
-	}
-
-	/**
-	 * Status column
-	 *
-	 * @param WPInv_Subscription $item
-	 * @since       1.0.0
-	 * @return      string
-	 */
-	public function column_status( $item ) {
-		return $item->get_status_label_html();
-	}
-
-	/**
-	 * Subscription column
-	 *
-	 * @param WPInv_Subscription $item
-	 * @since       1.0.0
-	 * @return      string
-	 */
-	public function column_subscription( $item ) {
-
-		$username = __( '(Missing User)', 'invoicing' );
-
-		$user = get_userdata( $item->get_customer_id() );
-		if ( $user ) {
-
-			$username = sprintf(
-				'<a href="user-edit.php?user_id=%s">%s</a>',
-				absint( $user->ID ),
-				! empty( $user->display_name ) ? sanitize_text_field( $user->display_name ) : sanitize_email( $user->user_email )
-			);
-
-		}
-
-		// translators: $1: is opening link, $2: is subscription id number, $3: is closing link tag, $4: is user's name
-		$column_content = sprintf(
-			_x( '%1$s#%2$s%3$s for %4$s', 'Subscription title on admin table. (e.g.: #211 for John Doe)', 'invoicing' ),
-			'<a href="' . esc_url( admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $item->get_id() ) ) ) . '">',
-			'<strong>' . esc_attr( $item->get_id() ) . '</strong>', '</a>',
-			$username
-		);
-
-		$row_actions = array();
-
-		// View subscription.
-		$view_url    = esc_url( add_query_arg( 'id', $item->get_id(), admin_url( 'admin.php?page=wpinv-subscriptions' ) ));
-		$row_actions['view'] = '<a href="' . $view_url . '">' . __( 'View Subscription', 'invoicing' ) . '</a>';
-
-		// View invoice.
-		$invoice = get_post( $item->get_product_id() );
-
-		if ( ! empty( $invoice ) ) {
-			$view_url    = get_edit_post_link( $invoice );
-			$row_actions['invoice'] = '<a href="' . $view_url . '">' . __( 'View Invoice', 'invoicing' ) . '</a>';
-		}
-
-		$row_actions = $this->row_actions( apply_filters( 'getpaid_subscription_table_row_actions', $row_actions, $item ) );
-
-		return "<strong>$column_content</strong>" . $this->column_amount( $item ) . $row_actions;
-	}
-
-	/**
-	 * Renewal date column
-	 *
-	 * @param WPInv_Subscription $item
-	 * @since       1.0.0
-	 * @return      string
-	 */
-	public function column_renewal_date( $item ) {
-
-		$expiration = $item->get_expiration();
-		if ( ! $item->is_active() || empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
-			return "&mdash;";
-		}
-
-		return date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $expiration ) );
-
-	}
-
-	/**
-	 * Start date column
-	 *
-	 * @param WPInv_Subscription $item
-	 * @since       1.0.0
-	 * @return      string
-	 */
-	public function column_start_date( $item ) {
-
-		$created = $item->get_date_created();
-		if ( empty( $created ) || '0000-00-00 00:00:00' == $created ) {
-			return "&mdash;";
-		}
-
-		return date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $created ) );
-
-	}
-
-	/**
-	 * Amount column
-	 *
-	 * @param WPInv_Subscription $item
-	 * @since       1.0.19
-	 * @return      string
-	 */
-	public function column_amount( $item ) {
-
-		$initial   = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $item->get_initial_amount() ) ), $item->get_parent_payment()->get_currency() );
-		$recurring = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $item->get_recurring_amount() ) ), $item->get_parent_payment()->get_currency() );
-		$period    = 1 == $item->get_frequency() ? getpaid_get_subscription_period_label( $item->get_period() ) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency( $item->get_period(),$item->get_frequency() );
-
-		if ( $item->has_trial_period() ) {
-
-			// translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
-			$amount = sprintf(
-				_x( '%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
-				$initial,
-				sanitize_text_field( $item->get_trial_period() ),
-				$recurring,
-				sanitize_text_field( strtolower( $period ) )
-			);
-
-		} else if ( $initial != $recurring ) {
-
-			// translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring perio
-			$amount = sprintf(
-				_x( 'Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing' ),
-				$initial,
-				$recurring,
-				sanitize_text_field( strtolower( $period ) )
-			);
-
-		} else {
-
-			// translators: $1: is the recurring amount, $2: is the recurring period
-			$amount = sprintf(
-				_x( '%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing' ),
-				$initial,
-				sanitize_text_field( strtolower( $period ) )
-			);
-
-		}
-
-		return "<span class='text-muted form-text mt-2 mb-2'>$amount</span>";
-	}
-
-	/**
-	 * Billing Times column
-	 *
-	 * @param WPInv_Subscription $item
-	 * @since       1.0.0
-	 * @return      string
-	 */
-	public function column_renewals( $item ) {
-		$max_bills = $item->get_bill_times();
-		return $item->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
-	}
-
-	/**
-	 * Product ID column
-	 *
-	 * @param WPInv_Subscription $item
-	 * @since       1.0.0
-	 * @return      string
-	 */
-	public function column_item( $item ) {
-		$_item = get_post( $item->get_product_id() );
-
-		if ( ! empty( $_item ) ) {
-			$link = get_edit_post_link( $_item );
-			$link = esc_url( $link );
-			$name = esc_html( get_the_title( $_item ) );
-			return "<a href='$link'>$name</a>";
-		} else {
-			return sprintf( __( 'Item #%s', 'invoicing' ), $item->get_product_id() );
-		}
-
-	}
-
-	/**
-	 * Retrieve the current page number
-	 *
-	 * @return      int
-	 */
-	public function get_paged() {
-		return isset( $_GET['paged'] ) ? absint( $_GET['paged'] ) : 1;
-	}
-
-	/**
-	 * Setup the final data for the table
-	 *
-	 */
-	public function prepare_items() {
-
-		$columns  = $this->get_columns();
-		$hidden   = array();
-		$sortable = $this->get_sortable_columns();
-
-		$this->_column_headers = array( $columns, $hidden, $sortable );
-
-		$this->set_pagination_args(
-			array(
-			'total_items' => $this->current_total_count,
-			'per_page'    => $this->per_page,
-			'total_pages' => ceil( $this->current_total_count / $this->per_page )
-			)
-		);
-	}
-
-	/**
-	 * Table columns
-	 *
-	 * @return array
-	 */
-	public function get_columns(){
-		$columns = array(
-			'cb'                => '<input type="checkbox" />',
-			'subscription'      => __( 'Subscription', 'invoicing' ),
-			'start_date'        => __( 'Start Date', 'invoicing' ),
-			'renewal_date'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'          => __( 'Renewals', 'invoicing' ),
-			'item'              => __( 'Item', 'invoicing' ),
-			'status'            => __( 'Status', 'invoicing' ),
-		);
-
-		return apply_filters( 'manage_getpaid_subscriptions_table_columns', $columns );
-	}
-
-	/**
-	 * Sortable table columns.
-	 *
-	 * @return array
-	 */
-	public function get_sortable_columns() {
-		$sortable = array(
-			'subscription' => array( 'id', true ),
-			'start_date'   => array( 'created', true ),
-			'renewal_date' => array( 'expiration', true ),
-			'renewals'     => array( 'bill_times', true ),
-			'item'         => array( 'product_id', true ),
-			'status'       => array( 'status', true ),
-		);
-
-		return apply_filters( 'manage_getpaid_subscriptions_sortable_table_columns', $sortable );
-	}
-
-	/**
-	 * Whether the table has items to display or not
-	 *
-	 * @return bool
-	 */
-	public function has_items() {
-		return ! empty( $this->current_total_count );
-	}
-
-	/**
-	 * Processes bulk actions.
-	 *
-	 */
-	public function process_bulk_action() {
-
-	}
+    /**
+     * URL of this page
+     *
+     * @var   string
+     * @since 1.0.19
+     */
+    public $base_url;
+
+    /**
+     * Query
+     *
+     * @var   GetPaid_Subscriptions_Query
+     * @since 1.0.19
+     */
+    public $query;
+
+    /**
+     * Total subscriptions
+     *
+     * @var   string
+     * @since 1.0.0
+     */
+    public $total_count;
+
+    /**
+     * Current status subscriptions
+     *
+     * @var   string
+     * @since 1.0.0
+     */
+    public $current_total_count;
+
+    /**
+     * Status counts
+     *
+     * @var   array
+     * @since 1.0.19
+     */
+    public $status_counts;
+
+    /**
+     * Number of results to show per page
+     *
+     * @var   int
+     * @since 1.0.0
+     */
+    public $per_page = 10;
+
+    /**
+     *  Constructor function.
+     */
+    public function __construct() {
+
+        parent::__construct(
+            array(
+                'singular' => 'subscription',
+                'plural'   => 'subscriptions',
+            )
+        );
+
+        $this->process_bulk_action();
+
+        $this->prepare_query();
+
+        $this->base_url = remove_query_arg( 'status' );
+
+    }
+
+    /**
+     *  Prepares the display query
+     */
+    public function prepare_query() {
+
+        // Prepare query args.
+        $query = array(
+            'number'  => $this->per_page,
+            'paged'   => $this->get_paged(),
+            'status'  => ( isset( $_GET['status'] ) && array_key_exists( $_GET['status'], getpaid_get_subscription_statuses() ) ) ? $_GET['status'] : 'all',
+            'orderby' => ( isset( $_GET['orderby'] ) ) ? $_GET['orderby'] : 'id',
+            'order'   => ( isset( $_GET['order'] ) ) ? $_GET['order'] : 'DESC',
+        );
+
+        // Prepare class properties.
+        $this->query               = new GetPaid_Subscriptions_Query( $query );
+        $this->total_count         = $this->query->get_total();
+        $this->current_total_count = $this->query->get_total();
+        $this->items               = $this->query->get_results();
+        $this->status_counts       = getpaid_get_subscription_status_counts( $query );
+
+        if ( 'all' != $query['status'] ) {
+            unset( $query['status'] );
+            $this->total_count   = getpaid_get_subscriptions( $query, 'count' );
+        }
+
+    }
+
+    /**
+     * Gets the list of views available on this table.
+     *
+     * The format is an associative array:
+     * - `'id' => 'link'`
+     *
+     * @since 1.0.0
+     *
+     * @return array
+     */
+    protected function get_views() {
+
+        $current  = isset( $_GET['status'] ) ? $_GET['status'] : 'all';
+        $views    = array(
+
+            'all' => sprintf(
+                '<a href="%s" %s>%s&nbsp;<span class="count">(%d)</span></a>',
+                esc_url( add_query_arg( 'status', false, $this->base_url ) ),
+                $current === 'all' ? ' class="current"' : '',
+                __('All','invoicing' ),
+                $this->total_count
+            )
+
+        );
+
+        foreach ( array_filter( $this->status_counts ) as $status => $count ) {
+
+            $views[ $status ] = sprintf(
+                '<a href="%s" %s>%s&nbsp;<span class="count">(%d)</span></a>',
+                esc_url( add_query_arg( 'status', urlencode( $status ), $this->base_url ) ),
+                $current === $status ? ' class="current"' : '',
+                sanitize_text_field( getpaid_get_subscription_status_label( $status ) ),
+                $count
+            );
+
+        }
+
+        return $views;
+
+    }
+
+    /**
+     * Render most columns
+     *
+     * @access      private
+     * @since       1.0.0
+     * @return      string
+     */
+    public function column_default( $item, $column_name ) {
+        return apply_filters( "getpaid_subscriptions_table_column_$column_name", $item->$column_name );
+    }
+
+    /**
+     * This is how checkbox column renders.
+     *
+     * @param WPInv_Subscription $item
+     * @return string
+     */
+    public function column_cb( $item ) {
+        return sprintf( '<input type="checkbox" name="id[]" value="%s" />', esc_html( $item->get_id() ) );
+    }
+
+    /**
+     * Status column
+     *
+     * @param WPInv_Subscription $item
+     * @since       1.0.0
+     * @return      string
+     */
+    public function column_status( $item ) {
+        return $item->get_status_label_html();
+    }
+
+    /**
+     * Subscription column
+     *
+     * @param WPInv_Subscription $item
+     * @since       1.0.0
+     * @return      string
+     */
+    public function column_subscription( $item ) {
+
+        $username = __( '(Missing User)', 'invoicing' );
+
+        $user = get_userdata( $item->get_customer_id() );
+        if ( $user ) {
+
+            $username = sprintf(
+                '<a href="user-edit.php?user_id=%s">%s</a>',
+                absint( $user->ID ),
+                ! empty( $user->display_name ) ? sanitize_text_field( $user->display_name ) : sanitize_email( $user->user_email )
+            );
+
+        }
+
+        // translators: $1: is opening link, $2: is subscription id number, $3: is closing link tag, $4: is user's name
+        $column_content = sprintf(
+            _x( '%1$s#%2$s%3$s for %4$s', 'Subscription title on admin table. (e.g.: #211 for John Doe)', 'invoicing' ),
+            '<a href="' . esc_url( admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $item->get_id() ) ) ) . '">',
+            '<strong>' . esc_attr( $item->get_id() ) . '</strong>', '</a>',
+            $username
+        );
+
+        $row_actions = array();
+
+        // View subscription.
+        $view_url    = esc_url( add_query_arg( 'id', $item->get_id(), admin_url( 'admin.php?page=wpinv-subscriptions' ) ));
+        $row_actions['view'] = '<a href="' . $view_url . '">' . __( 'View Subscription', 'invoicing' ) . '</a>';
+
+        // View invoice.
+        $invoice = get_post( $item->get_product_id() );
+
+        if ( ! empty( $invoice ) ) {
+            $view_url    = get_edit_post_link( $invoice );
+            $row_actions['invoice'] = '<a href="' . $view_url . '">' . __( 'View Invoice', 'invoicing' ) . '</a>';
+        }
+
+        $row_actions = $this->row_actions( apply_filters( 'getpaid_subscription_table_row_actions', $row_actions, $item ) );
+
+        return "<strong>$column_content</strong>" . $this->column_amount( $item ) . $row_actions;
+    }
+
+    /**
+     * Renewal date column
+     *
+     * @param WPInv_Subscription $item
+     * @since       1.0.0
+     * @return      string
+     */
+    public function column_renewal_date( $item ) {
+
+        $expiration = $item->get_expiration();
+        if ( ! $item->is_active() || empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
+            return "&mdash;";
+        }
+
+        return date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $expiration ) );
+
+    }
+
+    /**
+     * Start date column
+     *
+     * @param WPInv_Subscription $item
+     * @since       1.0.0
+     * @return      string
+     */
+    public function column_start_date( $item ) {
+
+        $created = $item->get_date_created();
+        if ( empty( $created ) || '0000-00-00 00:00:00' == $created ) {
+            return "&mdash;";
+        }
+
+        return date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $created ) );
+
+    }
+
+    /**
+     * Amount column
+     *
+     * @param WPInv_Subscription $item
+     * @since       1.0.19
+     * @return      string
+     */
+    public function column_amount( $item ) {
+
+        $initial   = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $item->get_initial_amount() ) ), $item->get_parent_payment()->get_currency() );
+        $recurring = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $item->get_recurring_amount() ) ), $item->get_parent_payment()->get_currency() );
+        $period    = 1 == $item->get_frequency() ? getpaid_get_subscription_period_label( $item->get_period() ) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency( $item->get_period(),$item->get_frequency() );
+
+        if ( $item->has_trial_period() ) {
+
+            // translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
+            $amount = sprintf(
+                _x( '%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
+                $initial,
+                sanitize_text_field( $item->get_trial_period() ),
+                $recurring,
+                sanitize_text_field( strtolower( $period ) )
+            );
+
+        } else if ( $initial != $recurring ) {
+
+            // translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring perio
+            $amount = sprintf(
+                _x( 'Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing' ),
+                $initial,
+                $recurring,
+                sanitize_text_field( strtolower( $period ) )
+            );
+
+        } else {
+
+            // translators: $1: is the recurring amount, $2: is the recurring period
+            $amount = sprintf(
+                _x( '%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing' ),
+                $initial,
+                sanitize_text_field( strtolower( $period ) )
+            );
+
+        }
+
+        return "<span class='text-muted form-text mt-2 mb-2'>$amount</span>";
+    }
+
+    /**
+     * Billing Times column
+     *
+     * @param WPInv_Subscription $item
+     * @since       1.0.0
+     * @return      string
+     */
+    public function column_renewals( $item ) {
+        $max_bills = $item->get_bill_times();
+        return $item->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+    }
+
+    /**
+     * Product ID column
+     *
+     * @param WPInv_Subscription $item
+     * @since       1.0.0
+     * @return      string
+     */
+    public function column_item( $item ) {
+        $_item = get_post( $item->get_product_id() );
+
+        if ( ! empty( $_item ) ) {
+            $link = get_edit_post_link( $_item );
+            $link = esc_url( $link );
+            $name = esc_html( get_the_title( $_item ) );
+            return "<a href='$link'>$name</a>";
+        } else {
+            return sprintf( __( 'Item #%s', 'invoicing' ), $item->get_product_id() );
+        }
+
+    }
+
+    /**
+     * Retrieve the current page number
+     *
+     * @return      int
+     */
+    public function get_paged() {
+        return isset( $_GET['paged'] ) ? absint( $_GET['paged'] ) : 1;
+    }
+
+    /**
+     * Setup the final data for the table
+     *
+     */
+    public function prepare_items() {
+
+        $columns  = $this->get_columns();
+        $hidden   = array();
+        $sortable = $this->get_sortable_columns();
+
+        $this->_column_headers = array( $columns, $hidden, $sortable );
+
+        $this->set_pagination_args(
+            array(
+            'total_items' => $this->current_total_count,
+            'per_page'    => $this->per_page,
+            'total_pages' => ceil( $this->current_total_count / $this->per_page )
+            )
+        );
+    }
+
+    /**
+     * Table columns
+     *
+     * @return array
+     */
+    public function get_columns(){
+        $columns = array(
+            'cb'                => '<input type="checkbox" />',
+            'subscription'      => __( 'Subscription', 'invoicing' ),
+            'start_date'        => __( 'Start Date', 'invoicing' ),
+            'renewal_date'      => __( 'Next Payment', 'invoicing' ),
+            'renewals'          => __( 'Renewals', 'invoicing' ),
+            'item'              => __( 'Item', 'invoicing' ),
+            'status'            => __( 'Status', 'invoicing' ),
+        );
+
+        return apply_filters( 'manage_getpaid_subscriptions_table_columns', $columns );
+    }
+
+    /**
+     * Sortable table columns.
+     *
+     * @return array
+     */
+    public function get_sortable_columns() {
+        $sortable = array(
+            'subscription' => array( 'id', true ),
+            'start_date'   => array( 'created', true ),
+            'renewal_date' => array( 'expiration', true ),
+            'renewals'     => array( 'bill_times', true ),
+            'item'         => array( 'product_id', true ),
+            'status'       => array( 'status', true ),
+        );
+
+        return apply_filters( 'manage_getpaid_subscriptions_sortable_table_columns', $sortable );
+    }
+
+    /**
+     * Whether the table has items to display or not
+     *
+     * @return bool
+     */
+    public function has_items() {
+        return ! empty( $this->current_total_count );
+    }
+
+    /**
+     * Processes bulk actions.
+     *
+     */
+    public function process_bulk_action() {
+
+    }
 
 }

Spacing +87 added lines, -87 removed lines

@@ -3,9 +3,9 @@ 
  * Displays a list of all subscriptions rules
  */
 
-if ( ! defined( 'ABSPATH' ) ) exit;
+if (!defined('ABSPATH')) exit;
 
-if ( ! class_exists( 'WP_List_Table' ) ) {
+if (!class_exists('WP_List_Table')) {
 	include_once ABSPATH . 'wp-admin/includes/class-wp-list-table.php';
 }
 
@@ -78,7 +78,7 @@ 
 
 		$this->prepare_query();
 
-		$this->base_url = remove_query_arg( 'status' );
+		$this->base_url = remove_query_arg('status');
 
 	}
 
@@ -91,21 +91,21 @@ 
 		$query = array(
 			'number'  => $this->per_page,
 			'paged'   => $this->get_paged(),
-			'status'  => ( isset( $_GET['status'] ) && array_key_exists( $_GET['status'], getpaid_get_subscription_statuses() ) ) ? $_GET['status'] : 'all',
-			'orderby' => ( isset( $_GET['orderby'] ) ) ? $_GET['orderby'] : 'id',
-			'order'   => ( isset( $_GET['order'] ) ) ? $_GET['order'] : 'DESC',
+			'status'  => (isset($_GET['status']) && array_key_exists($_GET['status'], getpaid_get_subscription_statuses())) ? $_GET['status'] : 'all',
+			'orderby' => (isset($_GET['orderby'])) ? $_GET['orderby'] : 'id',
+			'order'   => (isset($_GET['order'])) ? $_GET['order'] : 'DESC',
 		);
 
 		// Prepare class properties.
-		$this->query               = new GetPaid_Subscriptions_Query( $query );
+		$this->query               = new GetPaid_Subscriptions_Query($query);
 		$this->total_count         = $this->query->get_total();
 		$this->current_total_count = $this->query->get_total();
 		$this->items               = $this->query->get_results();
-		$this->status_counts       = getpaid_get_subscription_status_counts( $query );
+		$this->status_counts       = getpaid_get_subscription_status_counts($query);
 
-		if ( 'all' != $query['status'] ) {
-			unset( $query['status'] );
-			$this->total_count   = getpaid_get_subscriptions( $query, 'count' );
+		if ('all' != $query['status']) {
+			unset($query['status']);
+			$this->total_count = getpaid_get_subscriptions($query, 'count');
 		}
 
 	}
@@ -122,26 +122,26 @@ 
 	 */
 	protected function get_views() {
 
-		$current  = isset( $_GET['status'] ) ? $_GET['status'] : 'all';
+		$current  = isset($_GET['status']) ? $_GET['status'] : 'all';
 		$views    = array(
 
 			'all' => sprintf(
 				'<a href="%s" %s>%s&nbsp;<span class="count">(%d)</span></a>',
-				esc_url( add_query_arg( 'status', false, $this->base_url ) ),
+				esc_url(add_query_arg('status', false, $this->base_url)),
 				$current === 'all' ? ' class="current"' : '',
-				__('All','invoicing' ),
+				__('All', 'invoicing'),
 				$this->total_count
 			)
 
 		);
 
-		foreach ( array_filter( $this->status_counts ) as $status => $count ) {
+		foreach (array_filter($this->status_counts) as $status => $count) {
 
-			$views[ $status ] = sprintf(
+			$views[$status] = sprintf(
 				'<a href="%s" %s>%s&nbsp;<span class="count">(%d)</span></a>',
-				esc_url( add_query_arg( 'status', urlencode( $status ), $this->base_url ) ),
+				esc_url(add_query_arg('status', urlencode($status), $this->base_url)),
 				$current === $status ? ' class="current"' : '',
-				sanitize_text_field( getpaid_get_subscription_status_label( $status ) ),
+				sanitize_text_field(getpaid_get_subscription_status_label($status)),
 				$count
 			);
 
@@ -158,8 +158,8 @@ 
 	 * @since       1.0.0
 	 * @return      string
 	 */
-	public function column_default( $item, $column_name ) {
-		return apply_filters( "getpaid_subscriptions_table_column_$column_name", $item->$column_name );
+	public function column_default($item, $column_name) {
+		return apply_filters("getpaid_subscriptions_table_column_$column_name", $item->$column_name);
 	}
 
 	/**
@@ -168,8 +168,8 @@ 
 	 * @param WPInv_Subscription $item
 	 * @return string
 	 */
-	public function column_cb( $item ) {
-		return sprintf( '<input type="checkbox" name="id[]" value="%s" />', esc_html( $item->get_id() ) );
+	public function column_cb($item) {
+		return sprintf('<input type="checkbox" name="id[]" value="%s" />', esc_html($item->get_id()));
 	}
 
 	/**
@@ -179,7 +179,7 @@ 
 	 * @since       1.0.0
 	 * @return      string
 	 */
-	public function column_status( $item ) {
+	public function column_status($item) {
 		return $item->get_status_label_html();
 	}
 
@@ -190,46 +190,46 @@ 
 	 * @since       1.0.0
 	 * @return      string
 	 */
-	public function column_subscription( $item ) {
+	public function column_subscription($item) {
 
-		$username = __( '(Missing User)', 'invoicing' );
+		$username = __('(Missing User)', 'invoicing');
 
-		$user = get_userdata( $item->get_customer_id() );
-		if ( $user ) {
+		$user = get_userdata($item->get_customer_id());
+		if ($user) {
 
 			$username = sprintf(
 				'<a href="user-edit.php?user_id=%s">%s</a>',
-				absint( $user->ID ),
-				! empty( $user->display_name ) ? sanitize_text_field( $user->display_name ) : sanitize_email( $user->user_email )
+				absint($user->ID),
+				!empty($user->display_name) ? sanitize_text_field($user->display_name) : sanitize_email($user->user_email)
 			);
 
 		}
 
 		// translators: $1: is opening link, $2: is subscription id number, $3: is closing link tag, $4: is user's name
 		$column_content = sprintf(
-			_x( '%1$s#%2$s%3$s for %4$s', 'Subscription title on admin table. (e.g.: #211 for John Doe)', 'invoicing' ),
-			'<a href="' . esc_url( admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $item->get_id() ) ) ) . '">',
-			'<strong>' . esc_attr( $item->get_id() ) . '</strong>', '</a>',
+			_x('%1$s#%2$s%3$s for %4$s', 'Subscription title on admin table. (e.g.: #211 for John Doe)', 'invoicing'),
+			'<a href="' . esc_url(admin_url('admin.php?page=wpinv-subscriptions&id=' . absint($item->get_id()))) . '">',
+			'<strong>' . esc_attr($item->get_id()) . '</strong>', '</a>',
 			$username
 		);
 
 		$row_actions = array();
 
 		// View subscription.
-		$view_url    = esc_url( add_query_arg( 'id', $item->get_id(), admin_url( 'admin.php?page=wpinv-subscriptions' ) ));
-		$row_actions['view'] = '<a href="' . $view_url . '">' . __( 'View Subscription', 'invoicing' ) . '</a>';
+		$view_url    = esc_url(add_query_arg('id', $item->get_id(), admin_url('admin.php?page=wpinv-subscriptions')));
+		$row_actions['view'] = '<a href="' . $view_url . '">' . __('View Subscription', 'invoicing') . '</a>';
 
 		// View invoice.
-		$invoice = get_post( $item->get_product_id() );
+		$invoice = get_post($item->get_product_id());
 
-		if ( ! empty( $invoice ) ) {
-			$view_url    = get_edit_post_link( $invoice );
-			$row_actions['invoice'] = '<a href="' . $view_url . '">' . __( 'View Invoice', 'invoicing' ) . '</a>';
+		if (!empty($invoice)) {
+			$view_url = get_edit_post_link($invoice);
+			$row_actions['invoice'] = '<a href="' . $view_url . '">' . __('View Invoice', 'invoicing') . '</a>';
 		}
 
-		$row_actions = $this->row_actions( apply_filters( 'getpaid_subscription_table_row_actions', $row_actions, $item ) );
+		$row_actions = $this->row_actions(apply_filters('getpaid_subscription_table_row_actions', $row_actions, $item));
 
-		return "<strong>$column_content</strong>" . $this->column_amount( $item ) . $row_actions;
+		return "<strong>$column_content</strong>" . $this->column_amount($item) . $row_actions;
 	}
 
 	/**
@@ -239,14 +239,14 @@ 
 	 * @since       1.0.0
 	 * @return      string
 	 */
-	public function column_renewal_date( $item ) {
+	public function column_renewal_date($item) {
 
 		$expiration = $item->get_expiration();
-		if ( ! $item->is_active() || empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
+		if (!$item->is_active() || empty($expiration) || '0000-00-00 00:00:00' == $expiration) {
 			return "&mdash;";
 		}
 
-		return date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $expiration ) );
+		return date_i18n(/** @scrutinizer ignore-type */get_option('date_format'), strtotime($expiration));
 
 	}
 
@@ -257,14 +257,14 @@ 
 	 * @since       1.0.0
 	 * @return      string
 	 */
-	public function column_start_date( $item ) {
+	public function column_start_date($item) {
 
 		$created = $item->get_date_created();
-		if ( empty( $created ) || '0000-00-00 00:00:00' == $created ) {
+		if (empty($created) || '0000-00-00 00:00:00' == $created) {
 			return "&mdash;";
 		}
 
-		return date_i18n( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $created ) );
+		return date_i18n(/** @scrutinizer ignore-type */get_option('date_format'), strtotime($created));
 
 	}
 
@@ -275,40 +275,40 @@ 
 	 * @since       1.0.19
 	 * @return      string
 	 */
-	public function column_amount( $item ) {
+	public function column_amount($item) {
 
-		$initial   = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $item->get_initial_amount() ) ), $item->get_parent_payment()->get_currency() );
-		$recurring = wpinv_price( wpinv_format_amount( wpinv_sanitize_amount( $item->get_recurring_amount() ) ), $item->get_parent_payment()->get_currency() );
-		$period    = 1 == $item->get_frequency() ? getpaid_get_subscription_period_label( $item->get_period() ) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency( $item->get_period(),$item->get_frequency() );
+		$initial   = wpinv_price(wpinv_format_amount(wpinv_sanitize_amount($item->get_initial_amount())), $item->get_parent_payment()->get_currency());
+		$recurring = wpinv_price(wpinv_format_amount(wpinv_sanitize_amount($item->get_recurring_amount())), $item->get_parent_payment()->get_currency());
+		$period    = 1 == $item->get_frequency() ? getpaid_get_subscription_period_label($item->get_period()) : WPInv_Subscriptions::wpinv_get_pretty_subscription_frequency($item->get_period(), $item->get_frequency());
 
-		if ( $item->has_trial_period() ) {
+		if ($item->has_trial_period()) {
 
 			// translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
 			$amount = sprintf(
-				_x( '%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
+				_x('%1$s trial for %2$s(s) then %3$s / %4$s', 'Subscription amount on admin table. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing'),
 				$initial,
-				sanitize_text_field( $item->get_trial_period() ),
+				sanitize_text_field($item->get_trial_period()),
 				$recurring,
-				sanitize_text_field( strtolower( $period ) )
+				sanitize_text_field(strtolower($period))
 			);
 
-		} else if ( $initial != $recurring ) {
+		} else if ($initial != $recurring) {
 
 			// translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring perio
 			$amount = sprintf(
-				_x( 'Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing' ),
+				_x('Initial payment of %1$s then %2$s / %3$s', 'Subscription amount on admin table. (e.g.:Initial payment of $100 then $120 / year)', 'invoicing'),
 				$initial,
 				$recurring,
-				sanitize_text_field( strtolower( $period ) )
+				sanitize_text_field(strtolower($period))
 			);
 
 		} else {
 
 			// translators: $1: is the recurring amount, $2: is the recurring period
 			$amount = sprintf(
-				_x( '%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing' ),
+				_x('%1$s / %2$s', 'Subscription amount on admin table. (e.g.: $120 / year)', 'invoicing'),
 				$initial,
-				sanitize_text_field( strtolower( $period ) )
+				sanitize_text_field(strtolower($period))
 			);
 
 		}
@@ -323,9 +323,9 @@ 
 	 * @since       1.0.0
 	 * @return      string
 	 */
-	public function column_renewals( $item ) {
+	public function column_renewals($item) {
 		$max_bills = $item->get_bill_times();
-		return $item->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+		return $item->get_times_billed() . ' / ' . (empty($max_bills) ? "&infin;" : $max_bills);
 	}
 
 	/**
@@ -335,16 +335,16 @@ 
 	 * @since       1.0.0
 	 * @return      string
 	 */
-	public function column_item( $item ) {
-		$_item = get_post( $item->get_product_id() );
+	public function column_item($item) {
+		$_item = get_post($item->get_product_id());
 
-		if ( ! empty( $_item ) ) {
-			$link = get_edit_post_link( $_item );
-			$link = esc_url( $link );
-			$name = esc_html( get_the_title( $_item ) );
+		if (!empty($_item)) {
+			$link = get_edit_post_link($_item);
+			$link = esc_url($link);
+			$name = esc_html(get_the_title($_item));
 			return "<a href='$link'>$name</a>";
 		} else {
-			return sprintf( __( 'Item #%s', 'invoicing' ), $item->get_product_id() );
+			return sprintf(__('Item #%s', 'invoicing'), $item->get_product_id());
 		}
 
 	}
@@ -355,7 +355,7 @@ 
 	 * @return      int
 	 */
 	public function get_paged() {
-		return isset( $_GET['paged'] ) ? absint( $_GET['paged'] ) : 1;
+		return isset($_GET['paged']) ? absint($_GET['paged']) : 1;
 	}
 
 	/**
@@ -368,13 +368,13 @@ 
 		$hidden   = array();
 		$sortable = $this->get_sortable_columns();
 
-		$this->_column_headers = array( $columns, $hidden, $sortable );
+		$this->_column_headers = array($columns, $hidden, $sortable);
 
 		$this->set_pagination_args(
 			array(
 			'total_items' => $this->current_total_count,
 			'per_page'    => $this->per_page,
-			'total_pages' => ceil( $this->current_total_count / $this->per_page )
+			'total_pages' => ceil($this->current_total_count / $this->per_page)
 			)
 		);
 	}
@@ -384,18 +384,18 @@ 
 	 *
 	 * @return array
 	 */
-	public function get_columns(){
+	public function get_columns() {
 		$columns = array(
 			'cb'                => '<input type="checkbox" />',
-			'subscription'      => __( 'Subscription', 'invoicing' ),
-			'start_date'        => __( 'Start Date', 'invoicing' ),
-			'renewal_date'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'          => __( 'Renewals', 'invoicing' ),
-			'item'              => __( 'Item', 'invoicing' ),
-			'status'            => __( 'Status', 'invoicing' ),
+			'subscription'      => __('Subscription', 'invoicing'),
+			'start_date'        => __('Start Date', 'invoicing'),
+			'renewal_date'      => __('Next Payment', 'invoicing'),
+			'renewals'          => __('Renewals', 'invoicing'),
+			'item'              => __('Item', 'invoicing'),
+			'status'            => __('Status', 'invoicing'),
 		);
 
-		return apply_filters( 'manage_getpaid_subscriptions_table_columns', $columns );
+		return apply_filters('manage_getpaid_subscriptions_table_columns', $columns);
 	}
 
 	/**
@@ -405,15 +405,15 @@ 
 	 */
 	public function get_sortable_columns() {
 		$sortable = array(
-			'subscription' => array( 'id', true ),
-			'start_date'   => array( 'created', true ),
-			'renewal_date' => array( 'expiration', true ),
-			'renewals'     => array( 'bill_times', true ),
-			'item'         => array( 'product_id', true ),
-			'status'       => array( 'status', true ),
+			'subscription' => array('id', true),
+			'start_date'   => array('created', true),
+			'renewal_date' => array('expiration', true),
+			'renewals'     => array('bill_times', true),
+			'item'         => array('product_id', true),
+			'status'       => array('status', true),
 		);
 
-		return apply_filters( 'manage_getpaid_subscriptions_sortable_table_columns', $sortable );
+		return apply_filters('manage_getpaid_subscriptions_sortable_table_columns', $sortable);
 	}
 
 	/**
@@ -422,7 +422,7 @@ 
 	 * @return bool
 	 */
 	public function has_items() {
-		return ! empty( $this->current_total_count );
+		return !empty($this->current_total_count);
 	}
 
 	/**

includes/wpinv-helper-functions.php

Spacing +312 added lines, -312 removed lines

@@ -7,86 +7,86 @@ 
  */
 
 // 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_item_quantities_enabled() {
-    $ret = wpinv_get_option( 'item_quantities', true );
+    $ret = wpinv_get_option('item_quantities', true);
 
-    return (bool) apply_filters( 'wpinv_item_quantities_enabled', $ret );
+    return (bool) apply_filters('wpinv_item_quantities_enabled', $ret);
 }
 
 function wpinv_get_ip() {
     $ip = '127.0.0.1';
 
-    if ( !empty( $_SERVER['HTTP_CLIENT_IP'] ) ) {
-        $ip = sanitize_text_field( $_SERVER['HTTP_CLIENT_IP'] );
-    } elseif ( !empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
-        $ip = sanitize_text_field( $_SERVER['HTTP_X_FORWARDED_FOR'] );
-    } elseif( !empty( $_SERVER['REMOTE_ADDR'] ) ) {
-        $ip = sanitize_text_field( $_SERVER['REMOTE_ADDR'] );
+    if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
+        $ip = sanitize_text_field($_SERVER['HTTP_CLIENT_IP']);
+    } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
+        $ip = sanitize_text_field($_SERVER['HTTP_X_FORWARDED_FOR']);
+    } elseif (!empty($_SERVER['REMOTE_ADDR'])) {
+        $ip = sanitize_text_field($_SERVER['REMOTE_ADDR']);
     }
 
-    return apply_filters( 'wpinv_get_ip', $ip );
+    return apply_filters('wpinv_get_ip', $ip);
 }
 
 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);
 }
 
-function wpinv_sanitize_amount( $amount, $decimals = NULL ) {
+function wpinv_sanitize_amount($amount, $decimals = NULL) {
     $is_negative   = false;
     $thousands_sep = wpinv_thousands_separator();
     $decimal_sep   = wpinv_decimal_separator();
-    if ( $decimals === NULL ) {
+    if ($decimals === NULL) {
         $decimals = wpinv_decimals();
     }
 
     // Sanitize the amount
-    if ( $decimal_sep == ',' && false !== ( $found = strpos( $amount, $decimal_sep ) ) ) {
-        if ( ( $thousands_sep == '.' || $thousands_sep == ' ' ) && false !== ( $found = strpos( $amount, $thousands_sep ) ) ) {
-            $amount = str_replace( $thousands_sep, '', $amount );
-        } elseif( empty( $thousands_sep ) && false !== ( $found = strpos( $amount, '.' ) ) ) {
-            $amount = str_replace( '.', '', $amount );
+    if ($decimal_sep == ',' && false !== ($found = strpos($amount, $decimal_sep))) {
+        if (($thousands_sep == '.' || $thousands_sep == ' ') && false !== ($found = strpos($amount, $thousands_sep))) {
+            $amount = str_replace($thousands_sep, '', $amount);
+        } elseif (empty($thousands_sep) && false !== ($found = strpos($amount, '.'))) {
+            $amount = str_replace('.', '', $amount);
         }
 
-        $amount = str_replace( $decimal_sep, '.', $amount );
-    } elseif( $thousands_sep == ',' && false !== ( $found = strpos( $amount, $thousands_sep ) ) ) {
-        $amount = str_replace( $thousands_sep, '', $amount );
+        $amount = str_replace($decimal_sep, '.', $amount);
+    } elseif ($thousands_sep == ',' && false !== ($found = strpos($amount, $thousands_sep))) {
+        $amount = str_replace($thousands_sep, '', $amount);
     }
 
-    if( $amount < 0 ) {
+    if ($amount < 0) {
         $is_negative = true;
     }
 
-    $amount   = preg_replace( '/[^0-9\.]/', '', $amount );
+    $amount   = preg_replace('/[^0-9\.]/', '', $amount);
 
-    $decimals = apply_filters( 'wpinv_sanitize_amount_decimals', absint( $decimals ), $amount );
-    $amount   = number_format( (double) $amount, absint( $decimals ), '.', '' );
+    $decimals = apply_filters('wpinv_sanitize_amount_decimals', absint($decimals), $amount);
+    $amount   = number_format((double) $amount, absint($decimals), '.', '');
 
-    if( $is_negative ) {
+    if ($is_negative) {
         $amount *= -1;
     }
 
-    return apply_filters( 'wpinv_sanitize_amount', $amount, $decimals );
+    return apply_filters('wpinv_sanitize_amount', $amount, $decimals);
 }
-add_filter( 'wpinv_sanitize_amount_decimals', 'wpinv_currency_decimal_filter', 10, 1 );
+add_filter('wpinv_sanitize_amount_decimals', 'wpinv_currency_decimal_filter', 10, 1);
 
-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);
 }
 
 /**
@@ -95,32 +95,32 @@ 
  * @since 1.0.19
  * @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');
     }
 
-	return apply_filters( 'wpinv_statuses', $invoice_statuses, $invoice );
+	return apply_filters('wpinv_statuses', $invoice_statuses, $invoice);
 }
 
-function wpinv_status_nicename( $status ) {
-    $statuses = wpinv_get_invoice_statuses( true, true );
-    $status   = isset( $statuses[$status] ) ? $statuses[$status] : __( $status, 'invoicing' );
+function wpinv_status_nicename($status) {
+    $statuses = wpinv_get_invoice_statuses(true, true);
+    $status   = isset($statuses[$status]) ? $statuses[$status] : __($status, 'invoicing');
 
     return $status;
 }
@@ -129,7 +129,7 @@ 
  * Retrieves the default currency code.
  */
 function wpinv_get_currency() {
-    return apply_filters( 'wpinv_currency', wpinv_get_option( 'currency', 'USD' ) );
+    return apply_filters('wpinv_currency', wpinv_get_option('currency', 'USD'));
 }
 
 /**
@@ -137,61 +137,61 @@ 
  * 
  * @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);
 }
 
 function wpinv_thousands_separator() {
-    $thousand_sep = wpinv_get_option( 'thousands_separator', ',' );
+    $thousand_sep = wpinv_get_option('thousands_separator', ',');
     
-    return apply_filters( 'wpinv_thousands_separator', $thousand_sep );
+    return apply_filters('wpinv_thousands_separator', $thousand_sep);
 }
 
 function wpinv_decimal_separator() {
-    $decimal_sep = wpinv_get_option( 'decimal_separator', '.' );
+    $decimal_sep = wpinv_get_option('decimal_separator', '.');
     
-    return apply_filters( 'wpinv_decimal_separator', $decimal_sep );
+    return apply_filters('wpinv_decimal_separator', $decimal_sep);
 }
 
 function wpinv_decimals() {
-    $decimals = apply_filters( 'wpinv_decimals', wpinv_get_option( 'decimals', 2 ) );
+    $decimals = apply_filters('wpinv_decimals', wpinv_get_option('decimals', 2));
     
-    return absint( $decimals );
+    return absint($decimals);
 }
 
 /**
  * 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'));
 }
 
-function wpinv_price( $amount = '', $currency = '' ) {
-    if( empty( $currency ) ) {
+function wpinv_price($amount = '', $currency = '') {
+    if (empty($currency)) {
         $currency = wpinv_get_currency();
     }
 
@@ -199,14 +199,14 @@ 
 
     $negative = $amount < 0;
 
-    if ( $negative ) {
-        $amount = substr( $amount, 1 );
+    if ($negative) {
+        $amount = substr($amount, 1);
     }
 
-    $symbol = wpinv_currency_symbol( $currency );
+    $symbol = wpinv_currency_symbol($currency);
 
-    if ( $position == 'left' || $position == 'left_space' ) {
-        switch ( $currency ) {
+    if ($position == 'left' || $position == 'left_space') {
+        switch ($currency) {
             case "GBP" :
             case "BRL" :
             case "EUR" :
@@ -218,15 +218,15 @@ 
             case "NZD" :
             case "SGD" :
             case "JPY" :
-                $price = $position == 'left_space' ? $symbol . ' ' .  $amount : $symbol . $amount;
+                $price = $position == 'left_space' ? $symbol . ' ' . $amount : $symbol . $amount;
                 break;
             default :
                 //$price = $currency . ' ' . $amount;
-                $price = $position == 'left_space' ? $symbol . ' ' .  $amount : $symbol . $amount;
+                $price = $position == 'left_space' ? $symbol . ' ' . $amount : $symbol . $amount;
                 break;
         }
     } else {
-        switch ( $currency ) {
+        switch ($currency) {
             case "GBP" :
             case "BRL" :
             case "EUR" :
@@ -237,83 +237,83 @@ 
             case "MXN" :
             case "SGD" :
             case "JPY" :
-                $price = $position == 'right_space' ? $amount . ' ' .  $symbol : $amount . $symbol;
+                $price = $position == 'right_space' ? $amount . ' ' . $symbol : $amount . $symbol;
                 break;
             default :
                 //$price = $amount . ' ' . $currency;
-                $price = $position == 'right_space' ? $amount . ' ' .  $symbol : $amount . $symbol;
+                $price = $position == 'right_space' ? $amount . ' ' . $symbol : $amount . $symbol;
                 break;
         }
     }
     
-    if ( $negative ) {
+    if ($negative) {
         $price = '-' . $price;
     }
     
-    $price = apply_filters( 'wpinv_' . strtolower( $currency ) . '_currency_filter_' . $position, $price, $currency, $amount );
+    $price = apply_filters('wpinv_' . strtolower($currency) . '_currency_filter_' . $position, $price, $currency, $amount);
 
     return $price;
 }
 
-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();
 
-    if ( $decimals === NULL ) {
+    if ($decimals === NULL) {
         $decimals = wpinv_decimals();
     }
 
-    if ( $decimal_sep == ',' && false !== ( $sep_found = strpos( $amount, $decimal_sep ) ) ) {
-        $whole = substr( $amount, 0, $sep_found );
-        $part = substr( $amount, $sep_found + 1, ( strlen( $amount ) - 1 ) );
+    if ($decimal_sep == ',' && false !== ($sep_found = strpos($amount, $decimal_sep))) {
+        $whole = substr($amount, 0, $sep_found);
+        $part = substr($amount, $sep_found + 1, (strlen($amount) - 1));
         $amount = $whole . '.' . $part;
     }
 
-    if ( $thousands_sep == ',' && false !== ( $found = strpos( $amount, $thousands_sep ) ) ) {
-        $amount = str_replace( ',', '', $amount );
+    if ($thousands_sep == ',' && false !== ($found = strpos($amount, $thousands_sep))) {
+        $amount = str_replace(',', '', $amount);
     }
 
-    if ( $thousands_sep == ' ' && false !== ( $found = strpos( $amount, $thousands_sep ) ) ) {
-        $amount = str_replace( ' ', '', $amount );
+    if ($thousands_sep == ' ' && false !== ($found = strpos($amount, $thousands_sep))) {
+        $amount = str_replace(' ', '', $amount);
     }
 
-    if ( empty( $amount ) ) {
+    if (empty($amount)) {
         $amount = 0;
     }
     
-    $decimals  = apply_filters( 'wpinv_amount_format_decimals', $decimals ? $decimals : 0, $amount, $calculate );
-    $formatted = number_format( (float)$amount, $decimals, $decimal_sep, $thousands_sep );
+    $decimals  = apply_filters('wpinv_amount_format_decimals', $decimals ? $decimals : 0, $amount, $calculate);
+    $formatted = number_format((float) $amount, $decimals, $decimal_sep, $thousands_sep);
     
-    if ( $calculate ) {
-        if ( $thousands_sep === "," ) {
-            $formatted = str_replace( ",", "", $formatted );
+    if ($calculate) {
+        if ($thousands_sep === ",") {
+            $formatted = str_replace(",", "", $formatted);
         }
         
-        if ( $decimal_sep === "," ) {
-            $formatted = str_replace( ",", ".", $formatted );
+        if ($decimal_sep === ",") {
+            $formatted = str_replace(",", ".", $formatted);
         }
     }
 
-    return apply_filters( 'wpinv_amount_format', $formatted, $amount, $decimals, $decimal_sep, $thousands_sep, $calculate );
+    return apply_filters('wpinv_amount_format', $formatted, $amount, $decimals, $decimal_sep, $thousands_sep, $calculate);
 }
-add_filter( 'wpinv_amount_format_decimals', 'wpinv_currency_decimal_filter', 10, 1 );
+add_filter('wpinv_amount_format_decimals', 'wpinv_currency_decimal_filter', 10, 1);
 
-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);
 }
 
-function wpinv_get_file_extension( $str ) {
-    $parts = explode( '.', $str );
-    return end( $parts );
+function wpinv_get_file_extension($str) {
+    $parts = explode('.', $str);
+    return end($parts);
 }
 
-function wpinv_string_is_image_url( $str ) {
-    $ext = wpinv_get_file_extension( $str );
+function wpinv_string_is_image_url($str) {
+    $ext = wpinv_get_file_extension($str);
 
-    switch ( strtolower( $ext ) ) {
+    switch (strtolower($ext)) {
         case 'jpeg';
         case 'jpg';
             $return = true;
@@ -329,33 +329,33 @@ 
             break;
     }
 
-    return (bool)apply_filters( 'wpinv_string_is_image', $return, $str );
+    return (bool) apply_filters('wpinv_string_is_image', $return, $str);
 }
 
-function wpinv_error_log( $log, $title = '', $file = '', $line = '', $exit = false ) {
-    $should_log = apply_filters( 'wpinv_log_errors', WP_DEBUG );
+function wpinv_error_log($log, $title = '', $file = '', $line = '', $exit = false) {
+    $should_log = apply_filters('wpinv_log_errors', WP_DEBUG);
     
-    if ( true === $should_log ) {
+    if (true === $should_log) {
         $label = '';
-        if ( $file && $file !== '' ) {
-            $label .= basename( $file ) . ( $line ? '(' . $line . ')' : '' );
+        if ($file && $file !== '') {
+            $label .= basename($file) . ($line ? '(' . $line . ')' : '');
         }
         
-        if ( $title && $title !== '' ) {
+        if ($title && $title !== '') {
             $label = $label !== '' ? $label . ' ' : '';
             $label .= $title . ' ';
         }
         
-        $label = $label !== '' ? trim( $label ) . ' : ' : '';
+        $label = $label !== '' ? trim($label) . ' : ' : '';
         
-        if ( is_array( $log ) || is_object( $log ) ) {
-            error_log( $label . print_r( $log, true ) );
+        if (is_array($log) || is_object($log)) {
+            error_log($label . print_r($log, true));
         } else {
-            error_log( $label . $log );
+            error_log($label . $log);
         }
 
-        error_log( wp_debug_backtrace_summary() );
-        if ( $exit ) {
+        error_log(wp_debug_backtrace_summary());
+        if ($exit) {
             exit;
         }
     }
@@ -363,32 +363,32 @@ 
 
 function wpinv_is_ajax_disabled() {
     $retval = false;
-    return apply_filters( 'wpinv_is_ajax_disabled', $retval );
+    return apply_filters('wpinv_is_ajax_disabled', $retval);
 }
 
-function wpinv_get_current_page_url( $nocache = false ) {
+function wpinv_get_current_page_url($nocache = false) {
     global $wp;
 
-    if ( get_option( 'permalink_structure' ) ) {
-        $base = trailingslashit( home_url( $wp->request ) );
+    if (get_option('permalink_structure')) {
+        $base = trailingslashit(home_url($wp->request));
     } else {
-        $base = add_query_arg( $wp->query_string, '', trailingslashit( home_url( $wp->request ) ) );
-        $base = remove_query_arg( array( 'post_type', 'name' ), $base );
+        $base = add_query_arg($wp->query_string, '', trailingslashit(home_url($wp->request)));
+        $base = remove_query_arg(array('post_type', 'name'), $base);
     }
 
     $scheme = is_ssl() ? 'https' : 'http';
-    $uri    = set_url_scheme( $base, $scheme );
+    $uri    = set_url_scheme($base, $scheme);
 
-    if ( is_front_page() ) {
-        $uri = home_url( '/' );
-    } elseif ( wpinv_is_checkout( array(), false ) ) {
+    if (is_front_page()) {
+        $uri = home_url('/');
+    } elseif (wpinv_is_checkout(array(), false)) {
         $uri = wpinv_get_checkout_uri();
     }
 
-    $uri = apply_filters( 'wpinv_get_current_page_url', $uri );
+    $uri = apply_filters('wpinv_get_current_page_url', $uri);
 
-    if ( $nocache ) {
-        $uri = wpinv_add_cache_busting( $uri );
+    if ($nocache) {
+        $uri = wpinv_add_cache_busting($uri);
     }
 
     return $uri;
@@ -401,46 +401,46 @@ 
  * @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;
@@ -449,18 +449,18 @@ 
     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;
@@ -469,22 +469,22 @@ 
     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];
     }
 
@@ -504,12 +504,12 @@ 
  * @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;
 }
 
 /**
@@ -521,28 +521,28 @@ 
  * @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);
 }
 
 /**
@@ -556,12 +556,12 @@ 
  * @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);
 }
 
 /**
@@ -575,12 +575,12 @@ 
  * @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);
 }
 
 /**
@@ -595,16 +595,16 @@ 
  * @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);
 }
 
 /**
@@ -616,48 +616,48 @@ 
  * @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;
         }
     }
@@ -665,14 +665,14 @@ 
     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));
 }
 
 /**
@@ -683,11 +683,11 @@ 
  *
  * @return string
  */
-function wpi_help_tip( $tip, $allow_html = false ) {
-    if ( $allow_html ) {
-        $tip = wpi_sanitize_tooltip( $tip );
+function wpi_help_tip($tip, $allow_html = false) {
+    if ($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>';
@@ -701,8 +701,8 @@ 
  * @param string $var
  * @return string
  */
-function wpi_sanitize_tooltip( $var ) {
-    return htmlspecialchars( wp_kses( html_entity_decode( $var ), array(
+function wpi_sanitize_tooltip($var) {
+    return htmlspecialchars(wp_kses(html_entity_decode($var), array(
         'br'     => array(),
         'em'     => array(),
         'strong' => array(),
@@ -712,7 +712,7 @@ 
         'li'     => array(),
         'ol'     => array(),
         'p'      => array(),
-    ) ) );
+    )));
 }
 
 /**
@@ -722,7 +722,7 @@ 
  */
 function wpinv_get_screen_ids() {
 
-    $screen_id = sanitize_title( __( 'Invoicing', 'invoicing' ) );
+    $screen_id = sanitize_title(__('Invoicing', 'invoicing'));
 
     $screen_ids = array(
         'toplevel_page_' . $screen_id,
@@ -740,7 +740,7 @@ 
         'invoicing_page_wpi-addons',
     );
 
-    return apply_filters( 'wpinv_screen_ids', $screen_ids );
+    return apply_filters('wpinv_screen_ids', $screen_ids);
 }
 
 /**
@@ -751,14 +751,14 @@ 
  * @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;
@@ -772,16 +772,16 @@ 
  * @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;
 }
@@ -795,10 +795,10 @@ 
  * @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;
 
@@ -810,21 +810,21 @@ 
  * @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;
 }
 
 /**
@@ -833,43 +833,43 @@ 
  * @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;
@@ -878,23 +878,23 @@ 
 /**
  * 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( /** @scrutinizer ignore-type */get_option( 'date_format' ), strtotime( $date ) );
+    return date_i18n(/** @scrutinizer ignore-type */get_option('date_format'), strtotime($date));
 
 }
 
@@ -905,16 +905,16 @@ 
  * @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;
@@ -928,7 +928,7 @@ 
  * @since 1.0.19
  */
 function getpaid_api() {
-    return getpaid()->get( 'api' );
+    return getpaid()->get('api');
 }
 
 /**
@@ -938,7 +938,7 @@ 
  * @since 1.0.19
  */
 function getpaid_post_types() {
-    return getpaid()->get( 'post_types' );
+    return getpaid()->get('post_types');
 }
 
 /**
@@ -948,7 +948,7 @@ 
  * @since 1.0.19
  */
 function getpaid_session() {
-    return getpaid()->get( 'session' );
+    return getpaid()->get('session');
 }
 
 /**
@@ -958,7 +958,7 @@ 
  * @since 1.0.19
  */
 function getpaid_notes() {
-    return getpaid()->get( 'notes' );
+    return getpaid()->get('notes');
 }
 
 /**
@@ -970,28 +970,28 @@ 
  * 
  * @return int|array|WPInv_Subscription[]|GetPaid_Subscriptions_Query
  */
-function getpaid_get_subscriptions( $args = array(), $return = 'results' ) {
+function getpaid_get_subscriptions($args = array(), $return = 'results') {
 
-    $args = wp_parse_args( $args, array() );
+    $args = wp_parse_args($args, array());
 
     // Do not retrieve all fields if we just want the count.
-    if ( 'count' == $return ) {
+    if ('count' == $return) {
         $args['fields'] = 'id';
         $args['number'] = 1;
     }
 
     // Do not count all matches if we just want the results.
-    if ( 'results' == $return ) {
+    if ('results' == $return) {
         $args['count_total'] = false;
     }
 
-    $query = new GetPaid_Subscriptions_Query( $args );
+    $query = new GetPaid_Subscriptions_Query($args);
 
-    if ( 'results' == $return ) {
+    if ('results' == $return) {
         return $query->get_results();
     }
 
-    if ( 'count' == $return ) {
+    if ('count' == $return) {
         return $query->get_total();
     }
 
@@ -1008,13 +1008,13 @@ 
     return apply_filters(
         'getpaid_get_subscription_statuses',
         array(
-            'pending'    => __( 'Pending', 'invoicing' ),
-            'trialling'  => __( 'Trialing', 'invoicing' ),
-            'active'     => __( 'Active', 'invoicing' ),
-            'failing'    => __( 'Failing', 'invoicing' ),
-            'expired'    => __( 'Expired', 'invoicing' ),
-            'completed'  => __( 'Complete', 'invoicing' ),
-            'cancelled'  =>__( 'Cancelled', 'invoicing' ),
+            'pending'    => __('Pending', 'invoicing'),
+            'trialling'  => __('Trialing', 'invoicing'),
+            'active'     => __('Active', 'invoicing'),
+            'failing'    => __('Failing', 'invoicing'),
+            'expired'    => __('Expired', 'invoicing'),
+            'completed'  => __('Complete', 'invoicing'),
+            'cancelled'  =>__('Cancelled', 'invoicing'),
         )
     );
 
@@ -1025,9 +1025,9 @@ 
  * 
  * @return string
  */
-function getpaid_get_subscription_status_label( $status ) {
+function getpaid_get_subscription_status_label($status) {
     $statuses = getpaid_get_subscription_statuses();
-    return isset( $statuses[ $status ] ) ? $statuses[ $status ] : ucfirst( $status );
+    return isset($statuses[$status]) ? $statuses[$status] : ucfirst($status);
 }
 
 /**
@@ -1057,14 +1057,14 @@ 
  * 
  * @return array
  */
-function getpaid_get_subscription_status_counts( $args = array() ) {
+function getpaid_get_subscription_status_counts($args = array()) {
 
-    $statuses = array_keys( getpaid_get_subscription_statuses() );
+    $statuses = array_keys(getpaid_get_subscription_statuses());
     $counts   = array();
 
-    foreach ( $statuses as $status ) {
-        $_args             = wp_parse_args( "status=$status", $args );
-        $counts[ $status ] = getpaid_get_subscriptions( $_args, 'count' );
+    foreach ($statuses as $status) {
+        $_args             = wp_parse_args("status=$status", $args);
+        $counts[$status] = getpaid_get_subscriptions($_args, 'count');
     }
 
     return $counts;
@@ -1076,18 +1076,18 @@ 
  * 
  * @return string
  */
-function getpaid_get_subscription_period_label( $period ) {
+function getpaid_get_subscription_period_label($period) {
 
     $periods = array(
-        'd'     => __( 'day', 'invoicing' ),
-        'day'   => __( 'day', 'invoicing' ),
-        'w'     => __( 'week', 'invoicing' ),
-        'week'  => __( 'week', 'invoicing' ),
-        'm'     => __( 'month', 'invoicing' ),
-        'month' => __( 'month', 'invoicing' ),
-        'y'     => __( 'year', 'invoicing' ),
-        'year'  => __( 'year', 'invoicing' ),
+        'd'     => __('day', 'invoicing'),
+        'day'   => __('day', 'invoicing'),
+        'w'     => __('week', 'invoicing'),
+        'week'  => __('week', 'invoicing'),
+        'm'     => __('month', 'invoicing'),
+        'month' => __('month', 'invoicing'),
+        'y'     => __('year', 'invoicing'),
+        'year'  => __('year', 'invoicing'),
     );
 
-    return isset( $periods[ $period ] ) ? strtolower( $periods[ $period ] ) : strtolower( $periods['d'] );
+    return isset($periods[$period]) ? strtolower($periods[$period]) : strtolower($periods['d']);
 }