woocommerce / woocommerce-gateway-stripe

includes/class-wc-stripe-helper.php

Spacing +101 added lines, -101 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -22,14 +22,14 @@ 
 	 * @param object $order
 	 * @return string $currency
 	 */
-	public static function get_stripe_currency( $order = null ) {
-		if ( is_null( $order ) ) {
+	public static function get_stripe_currency($order = null) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		return WC_Stripe_Helper::is_wc_lt( '3.0' ) ? get_post_meta( $order_id, self::META_NAME_STRIPE_CURRENCY, true ) : $order->get_meta( self::META_NAME_STRIPE_CURRENCY, true );
+		return WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($order_id, self::META_NAME_STRIPE_CURRENCY, true) : $order->get_meta(self::META_NAME_STRIPE_CURRENCY, true);
 	}
 
 	/**
@@ -39,14 +39,14 @@ 
 	 * @param object $order
 	 * @param string $currency
 	 */
-	public static function update_stripe_currency( $order = null, $currency ) {
-		if ( is_null( $order ) ) {
+	public static function update_stripe_currency($order = null, $currency) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		WC_Stripe_Helper::is_wc_lt( '3.0' ) ? update_post_meta( $order_id, self::META_NAME_STRIPE_CURRENCY, $currency ) : $order->update_meta_data( self::META_NAME_STRIPE_CURRENCY, $currency );
+		WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($order_id, self::META_NAME_STRIPE_CURRENCY, $currency) : $order->update_meta_data(self::META_NAME_STRIPE_CURRENCY, $currency);
 	}
 
 	/**
@@ -56,22 +56,22 @@ 
 	 * @param object $order
 	 * @return string $amount
 	 */
-	public static function get_stripe_fee( $order = null ) {
-		if ( is_null( $order ) ) {
+	public static function get_stripe_fee($order = null) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		$amount = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? get_post_meta( $order_id, self::META_NAME_FEE, true ) : $order->get_meta( self::META_NAME_FEE, true );
+		$amount = WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($order_id, self::META_NAME_FEE, true) : $order->get_meta(self::META_NAME_FEE, true);
 
 		// If not found let's check for legacy name.
-		if ( empty( $amount ) ) {
-			$amount = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? get_post_meta( $order_id, self::LEGACY_META_NAME_FEE, true ) : $order->get_meta( self::LEGACY_META_NAME_FEE, true );
+		if (empty($amount)) {
+			$amount = WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($order_id, self::LEGACY_META_NAME_FEE, true) : $order->get_meta(self::LEGACY_META_NAME_FEE, true);
 
 			// If found update to new name.
-			if ( $amount ) {
-				self::update_stripe_fee( $order, $amount );
+			if ($amount) {
+				self::update_stripe_fee($order, $amount);
 			}
 		}
 
@@ -85,14 +85,14 @@ 
 	 * @param object $order
 	 * @param float $amount
 	 */
-	public static function update_stripe_fee( $order = null, $amount = 0.0 ) {
-		if ( is_null( $order ) ) {
+	public static function update_stripe_fee($order = null, $amount = 0.0) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		WC_Stripe_Helper::is_wc_lt( '3.0' ) ? update_post_meta( $order_id, self::META_NAME_FEE, $amount ) : $order->update_meta_data( self::META_NAME_FEE, $amount );
+		WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($order_id, self::META_NAME_FEE, $amount) : $order->update_meta_data(self::META_NAME_FEE, $amount);
 	}
 
 	/**
@@ -101,15 +101,15 @@ 
 	 * @since 4.1.0
 	 * @param object $order
 	 */
-	public static function delete_stripe_fee( $order = null ) {
-		if ( is_null( $order ) ) {
+	public static function delete_stripe_fee($order = null) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		delete_post_meta( $order_id, self::META_NAME_FEE );
-		delete_post_meta( $order_id, self::LEGACY_META_NAME_FEE );
+		delete_post_meta($order_id, self::META_NAME_FEE);
+		delete_post_meta($order_id, self::LEGACY_META_NAME_FEE);
 	}
 
 	/**
@@ -119,22 +119,22 @@ 
 	 * @param object $order
 	 * @return string $amount
 	 */
-	public static function get_stripe_net( $order = null ) {
-		if ( is_null( $order ) ) {
+	public static function get_stripe_net($order = null) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		$amount = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? get_post_meta( $order_id, self::META_NAME_NET, true ) : $order->get_meta( self::META_NAME_NET, true );
+		$amount = WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($order_id, self::META_NAME_NET, true) : $order->get_meta(self::META_NAME_NET, true);
 
 		// If not found let's check for legacy name.
-		if ( empty( $amount ) ) {
-			$amount = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? get_post_meta( $order_id, self::LEGACY_META_NAME_NET, true ) : $order->get_meta( self::LEGACY_META_NAME_NET, true );
+		if (empty($amount)) {
+			$amount = WC_Stripe_Helper::is_wc_lt('3.0') ? get_post_meta($order_id, self::LEGACY_META_NAME_NET, true) : $order->get_meta(self::LEGACY_META_NAME_NET, true);
 
 			// If found update to new name.
-			if ( $amount ) {
-				self::update_stripe_net( $order, $amount );
+			if ($amount) {
+				self::update_stripe_net($order, $amount);
 			}
 		}
 
@@ -148,14 +148,14 @@ 
 	 * @param object $order
 	 * @param float $amount
 	 */
-	public static function update_stripe_net( $order = null, $amount = 0.0 ) {
-		if ( is_null( $order ) ) {
+	public static function update_stripe_net($order = null, $amount = 0.0) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		WC_Stripe_Helper::is_wc_lt( '3.0' ) ? update_post_meta( $order_id, self::META_NAME_NET, $amount ) : $order->update_meta_data( self::META_NAME_NET, $amount );
+		WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($order_id, self::META_NAME_NET, $amount) : $order->update_meta_data(self::META_NAME_NET, $amount);
 	}
 
 	/**
@@ -164,15 +164,15 @@ 
 	 * @since 4.1.0
 	 * @param object $order
 	 */
-	public static function delete_stripe_net( $order = null ) {
-		if ( is_null( $order ) ) {
+	public static function delete_stripe_net($order = null) {
+		if (is_null($order)) {
 			return false;
 		}
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
-		delete_post_meta( $order_id, self::META_NAME_NET );
-		delete_post_meta( $order_id, self::LEGACY_META_NAME_NET );
+		delete_post_meta($order_id, self::META_NAME_NET);
+		delete_post_meta($order_id, self::LEGACY_META_NAME_NET);
 	}
 
 	/**
@@ -183,15 +183,15 @@ 
 	 *
 	 * @return float|int
 	 */
-	public static function get_stripe_amount( $total, $currency = '' ) {
-		if ( ! $currency ) {
+	public static function get_stripe_amount($total, $currency = '') {
+		if ( ! $currency) {
 			$currency = get_woocommerce_currency();
 		}
 
-		if ( in_array( strtolower( $currency ), self::no_decimal_currencies() ) ) {
-			return absint( $total );
+		if (in_array(strtolower($currency), self::no_decimal_currencies())) {
+			return absint($total);
 		} else {
-			return absint( wc_format_decimal( ( (float) $total * 100 ), wc_get_price_decimals() ) ); // In cents.
+			return absint(wc_format_decimal(((float) $total * 100), wc_get_price_decimals())); // In cents.
 		}
 	}
 
@@ -206,24 +206,24 @@ 
 		return apply_filters(
 			'wc_stripe_localized_messages',
 			array(
-				'invalid_number'           => __( 'The card number is not a valid credit card number.', 'woocommerce-gateway-stripe' ),
-				'invalid_expiry_month'     => __( 'The card\'s expiration month is invalid.', 'woocommerce-gateway-stripe' ),
-				'invalid_expiry_year'      => __( 'The card\'s expiration year is invalid.', 'woocommerce-gateway-stripe' ),
-				'invalid_cvc'              => __( 'The card\'s security code is invalid.', 'woocommerce-gateway-stripe' ),
-				'incorrect_number'         => __( 'The card number is incorrect.', 'woocommerce-gateway-stripe' ),
-				'incomplete_number'        => __( 'The card number is incomplete.', 'woocommerce-gateway-stripe' ),
-				'incomplete_cvc'           => __( 'The card\'s security code is incomplete.', 'woocommerce-gateway-stripe' ),
-				'incomplete_expiry'        => __( 'The card\'s expiration date is incomplete.', 'woocommerce-gateway-stripe' ),
-				'expired_card'             => __( 'The card has expired.', 'woocommerce-gateway-stripe' ),
-				'incorrect_cvc'            => __( 'The card\'s security code is incorrect.', 'woocommerce-gateway-stripe' ),
-				'incorrect_zip'            => __( 'The card\'s zip code failed validation.', 'woocommerce-gateway-stripe' ),
-				'invalid_expiry_year_past' => __( 'The card\'s expiration year is in the past', 'woocommerce-gateway-stripe' ),
-				'card_declined'            => __( 'The card was declined.', 'woocommerce-gateway-stripe' ),
-				'missing'                  => __( 'There is no card on a customer that is being charged.', 'woocommerce-gateway-stripe' ),
-				'processing_error'         => __( 'An error occurred while processing the card.', 'woocommerce-gateway-stripe' ),
-				'invalid_request_error'    => __( 'Unable to process this payment, please try again or use alternative method.', 'woocommerce-gateway-stripe' ),
-				'invalid_sofort_country'   => __( 'The billing country is not accepted by SOFORT. Please try another country.', 'woocommerce-gateway-stripe' ),
-				'email_invalid'            => __( 'Invalid email address, please correct and try again.', 'woocommerce-gateway-stripe' ),
+				'invalid_number'           => __('The card number is not a valid credit card number.', 'woocommerce-gateway-stripe'),
+				'invalid_expiry_month'     => __('The card\'s expiration month is invalid.', 'woocommerce-gateway-stripe'),
+				'invalid_expiry_year'      => __('The card\'s expiration year is invalid.', 'woocommerce-gateway-stripe'),
+				'invalid_cvc'              => __('The card\'s security code is invalid.', 'woocommerce-gateway-stripe'),
+				'incorrect_number'         => __('The card number is incorrect.', 'woocommerce-gateway-stripe'),
+				'incomplete_number'        => __('The card number is incomplete.', 'woocommerce-gateway-stripe'),
+				'incomplete_cvc'           => __('The card\'s security code is incomplete.', 'woocommerce-gateway-stripe'),
+				'incomplete_expiry'        => __('The card\'s expiration date is incomplete.', 'woocommerce-gateway-stripe'),
+				'expired_card'             => __('The card has expired.', 'woocommerce-gateway-stripe'),
+				'incorrect_cvc'            => __('The card\'s security code is incorrect.', 'woocommerce-gateway-stripe'),
+				'incorrect_zip'            => __('The card\'s zip code failed validation.', 'woocommerce-gateway-stripe'),
+				'invalid_expiry_year_past' => __('The card\'s expiration year is in the past', 'woocommerce-gateway-stripe'),
+				'card_declined'            => __('The card was declined.', 'woocommerce-gateway-stripe'),
+				'missing'                  => __('There is no card on a customer that is being charged.', 'woocommerce-gateway-stripe'),
+				'processing_error'         => __('An error occurred while processing the card.', 'woocommerce-gateway-stripe'),
+				'invalid_request_error'    => __('Unable to process this payment, please try again or use alternative method.', 'woocommerce-gateway-stripe'),
+				'invalid_sofort_country'   => __('The billing country is not accepted by SOFORT. Please try another country.', 'woocommerce-gateway-stripe'),
+				'email_invalid'            => __('Invalid email address, please correct and try again.', 'woocommerce-gateway-stripe'),
 			)
 		);
 	}
@@ -264,24 +264,24 @@ 
 	 * @param string $type Type of number to format
 	 * @return string
 	 */
-	public static function format_balance_fee( $balance_transaction, $type = 'fee' ) {
-		if ( ! is_object( $balance_transaction ) ) {
+	public static function format_balance_fee($balance_transaction, $type = 'fee') {
+		if ( ! is_object($balance_transaction)) {
 			return;
 		}
 
-		if ( in_array( strtolower( $balance_transaction->currency ), self::no_decimal_currencies() ) ) {
-			if ( 'fee' === $type ) {
+		if (in_array(strtolower($balance_transaction->currency), self::no_decimal_currencies())) {
+			if ('fee' === $type) {
 				return $balance_transaction->fee;
 			}
 
 			return $balance_transaction->net;
 		}
 
-		if ( 'fee' === $type ) {
-			return number_format( $balance_transaction->fee / 100, 2, '.', '' );
+		if ('fee' === $type) {
+			return number_format($balance_transaction->fee / 100, 2, '.', '');
 		}
 
-		return number_format( $balance_transaction->net / 100, 2, '.', '' );
+		return number_format($balance_transaction->net / 100, 2, '.', '');
 	}
 
 	/**
@@ -289,7 +289,7 @@ 
 	 */
 	public static function get_minimum_amount() {
 		// Check order amount
-		switch ( get_woocommerce_currency() ) {
+		switch (get_woocommerce_currency()) {
 			case 'USD':
 			case 'CAD':
 			case 'EUR':
@@ -334,14 +334,14 @@ 
 	 * @param string $method The payment method to get the settings from.
 	 * @param string $setting The name of the setting to get.
 	 */
-	public static function get_settings( $method = null, $setting = null ) {
-		$all_settings = null === $method ? get_option( 'woocommerce_stripe_settings', array() ) : get_option( 'woocommerce_stripe_' . $method . '_settings', array() );
+	public static function get_settings($method = null, $setting = null) {
+		$all_settings = null === $method ? get_option('woocommerce_stripe_settings', array()) : get_option('woocommerce_stripe_' . $method . '_settings', array());
 
-		if ( null === $setting ) {
+		if (null === $setting) {
 			return $all_settings;
 		}
 
-		return isset( $all_settings[ $setting ] ) ? $all_settings[ $setting ] : '';
+		return isset($all_settings[$setting]) ? $all_settings[$setting] : '';
 	}
 
 	/**
@@ -351,7 +351,7 @@ 
 	 * @return bool
 	 */
 	public static function is_pre_orders_exists() {
-		return class_exists( 'WC_Pre_Orders_Order' );
+		return class_exists('WC_Pre_Orders_Order');
 	}
 
 	/**
@@ -363,9 +363,9 @@ 
 	 * @return bool
 	 */
 	public static function is_pre_30() {
-		error_log( 'is_pre_30() function has been deprecated since 4.1.11. Please use is_wc_lt( $version ) instead.' );
+		error_log('is_pre_30() function has been deprecated since 4.1.11. Please use is_wc_lt( $version ) instead.');
 
-		return self::is_wc_lt( '3.0' );
+		return self::is_wc_lt('3.0');
 	}
 
 	/**
@@ -375,8 +375,8 @@ 
 	 * @param string $version Version to check against.
 	 * @return bool
 	 */
-	public static function is_wc_lt( $version ) {
-		return version_compare( WC_VERSION, $version, '<' );
+	public static function is_wc_lt($version) {
+		return version_compare(WC_VERSION, $version, '<');
 	}
 
 	/**
@@ -389,7 +389,7 @@ 
 	 * @return string
 	 */
 	public static function get_webhook_url() {
-		return add_query_arg( 'wc-api', 'wc_stripe', trailingslashit( get_home_url() ) );
+		return add_query_arg('wc-api', 'wc_stripe', trailingslashit(get_home_url()));
 	}
 
 	/**
@@ -399,13 +399,13 @@ 
 	 * @version 4.0.0
 	 * @param string $source_id
 	 */
-	public static function get_order_by_source_id( $source_id ) {
+	public static function get_order_by_source_id($source_id) {
 		global $wpdb;
 
-		$order_id = $wpdb->get_var( $wpdb->prepare( "SELECT DISTINCT ID FROM $wpdb->posts as posts LEFT JOIN $wpdb->postmeta as meta ON posts.ID = meta.post_id WHERE meta.meta_value = %s AND meta.meta_key = %s", $source_id, '_stripe_source_id' ) );
+		$order_id = $wpdb->get_var($wpdb->prepare("SELECT DISTINCT ID FROM $wpdb->posts as posts LEFT JOIN $wpdb->postmeta as meta ON posts.ID = meta.post_id WHERE meta.meta_value = %s AND meta.meta_key = %s", $source_id, '_stripe_source_id'));
 
-		if ( ! empty( $order_id ) ) {
-			return wc_get_order( $order_id );
+		if ( ! empty($order_id)) {
+			return wc_get_order($order_id);
 		}
 
 		return false;
@@ -418,17 +418,17 @@ 
 	 * @since 4.1.16 Return false if charge_id is empty.
 	 * @param string $charge_id
 	 */
-	public static function get_order_by_charge_id( $charge_id ) {
+	public static function get_order_by_charge_id($charge_id) {
 		global $wpdb;
 
-		if ( empty( $charge_id ) ) {
+		if (empty($charge_id)) {
 			return false;
 		}
 
-		$order_id = $wpdb->get_var( $wpdb->prepare( "SELECT DISTINCT ID FROM $wpdb->posts as posts LEFT JOIN $wpdb->postmeta as meta ON posts.ID = meta.post_id WHERE meta.meta_value = %s AND meta.meta_key = %s", $charge_id, '_transaction_id' ) );
+		$order_id = $wpdb->get_var($wpdb->prepare("SELECT DISTINCT ID FROM $wpdb->posts as posts LEFT JOIN $wpdb->postmeta as meta ON posts.ID = meta.post_id WHERE meta.meta_value = %s AND meta.meta_key = %s", $charge_id, '_transaction_id'));
 
-		if ( ! empty( $order_id ) ) {
-			return wc_get_order( $order_id );
+		if ( ! empty($order_id)) {
+			return wc_get_order($order_id);
 		}
 
 		return false;
@@ -441,13 +441,13 @@ 
 	 * @param string $intent_id The ID of the intent.
 	 * @return WC_Order|bool Either an order or false when not found.
 	 */
-	public static function get_order_by_intent_id( $intent_id ) {
+	public static function get_order_by_intent_id($intent_id) {
 		global $wpdb;
 
-		$order_id = $wpdb->get_var( $wpdb->prepare( "SELECT DISTINCT ID FROM $wpdb->posts as posts LEFT JOIN $wpdb->postmeta as meta ON posts.ID = meta.post_id WHERE meta.meta_value = %s AND meta.meta_key = %s", $intent_id, '_stripe_intent_id' ) );
+		$order_id = $wpdb->get_var($wpdb->prepare("SELECT DISTINCT ID FROM $wpdb->posts as posts LEFT JOIN $wpdb->postmeta as meta ON posts.ID = meta.post_id WHERE meta.meta_value = %s AND meta.meta_key = %s", $intent_id, '_stripe_intent_id'));
 
-		if ( ! empty( $order_id ) ) {
-			return wc_get_order( $order_id );
+		if ( ! empty($order_id)) {
+			return wc_get_order($order_id);
 		}
 
 		return false;
@@ -463,13 +463,13 @@ 
 	 * @param string $statement_descriptor
 	 * @return string $statement_descriptor Sanitized statement descriptor
 	 */
-	public static function clean_statement_descriptor( $statement_descriptor = '' ) {
-		$disallowed_characters = array( '<', '>', '"', "'" );
+	public static function clean_statement_descriptor($statement_descriptor = '') {
+		$disallowed_characters = array('<', '>', '"', "'");
 
 		// Remove special characters.
-		$statement_descriptor = str_replace( $disallowed_characters, '', $statement_descriptor );
+		$statement_descriptor = str_replace($disallowed_characters, '', $statement_descriptor);
 
-		$statement_descriptor = substr( trim( $statement_descriptor ), 0, 22 );
+		$statement_descriptor = substr(trim($statement_descriptor), 0, 22);
 
 		return $statement_descriptor;
 	}

includes/payment-methods/class-wc-stripe-payment-request.php

Spacing +301 added lines, -301 removed lines

@@ -6,7 +6,7 @@ 
  * @since   4.0.0
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -64,41 +64,41 @@ 
 	 */
 	public function __construct() {
 		self::$_this            = $this;
-		$this->stripe_settings  = get_option( 'woocommerce_stripe_settings', array() );
-		$this->testmode         = ( ! empty( $this->stripe_settings['testmode'] ) && 'yes' === $this->stripe_settings['testmode'] ) ? true : false;
-		$this->publishable_key  = ! empty( $this->stripe_settings['publishable_key'] ) ? $this->stripe_settings['publishable_key'] : '';
-		$this->secret_key       = ! empty( $this->stripe_settings['secret_key'] ) ? $this->stripe_settings['secret_key'] : '';
-		$this->total_label      = ! empty( $this->stripe_settings['statement_descriptor'] ) ? WC_Stripe_Helper::clean_statement_descriptor( $this->stripe_settings['statement_descriptor'] ) : '';
+		$this->stripe_settings  = get_option('woocommerce_stripe_settings', array());
+		$this->testmode         = ( ! empty($this->stripe_settings['testmode']) && 'yes' === $this->stripe_settings['testmode']) ? true : false;
+		$this->publishable_key  = ! empty($this->stripe_settings['publishable_key']) ? $this->stripe_settings['publishable_key'] : '';
+		$this->secret_key       = ! empty($this->stripe_settings['secret_key']) ? $this->stripe_settings['secret_key'] : '';
+		$this->total_label      = ! empty($this->stripe_settings['statement_descriptor']) ? WC_Stripe_Helper::clean_statement_descriptor($this->stripe_settings['statement_descriptor']) : '';
 
-		if ( $this->testmode ) {
-			$this->publishable_key = ! empty( $this->stripe_settings['test_publishable_key'] ) ? $this->stripe_settings['test_publishable_key'] : '';
-			$this->secret_key      = ! empty( $this->stripe_settings['test_secret_key'] ) ? $this->stripe_settings['test_secret_key'] : '';
+		if ($this->testmode) {
+			$this->publishable_key = ! empty($this->stripe_settings['test_publishable_key']) ? $this->stripe_settings['test_publishable_key'] : '';
+			$this->secret_key      = ! empty($this->stripe_settings['test_secret_key']) ? $this->stripe_settings['test_secret_key'] : '';
 		}
 
-		$this->total_label = str_replace( "'", '', $this->total_label ) . apply_filters( 'wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)' );
+		$this->total_label = str_replace("'", '', $this->total_label) . apply_filters('wc_stripe_payment_request_total_label_suffix', ' (via WooCommerce)');
 
 		// Checks if Stripe Gateway is enabled.
-		if ( empty( $this->stripe_settings ) || ( isset( $this->stripe_settings['enabled'] ) && 'yes' !== $this->stripe_settings['enabled'] ) ) {
+		if (empty($this->stripe_settings) || (isset($this->stripe_settings['enabled']) && 'yes' !== $this->stripe_settings['enabled'])) {
 			return;
 		}
 
 		// Checks if Payment Request is enabled.
-		if ( ! isset( $this->stripe_settings['payment_request'] ) || 'yes' !== $this->stripe_settings['payment_request'] ) {
+		if ( ! isset($this->stripe_settings['payment_request']) || 'yes' !== $this->stripe_settings['payment_request']) {
 			return;
 		}
 
 		// Don't load for change payment method page.
-		if ( isset( $_GET['change_payment_method'] ) ) {
+		if (isset($_GET['change_payment_method'])) {
 			return;
 		}
 
-		$wc_default_country = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$wc_default_country = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		if ( ! in_array( $wc_default_country, $this->get_stripe_supported_countries() ) ) {
+		if ( ! in_array($wc_default_country, $this->get_stripe_supported_countries())) {
 			return;
 		}
 
-		add_action( 'template_redirect', array( $this, 'set_session' ) );
+		add_action('template_redirect', array($this, 'set_session'));
 		$this->init();
 	}
 
@@ -109,7 +109,7 @@ 
 	 * @return array The list of countries.
 	 */
 	public function get_stripe_supported_countries() {
-		return apply_filters( 'wc_stripe_supported_countries', array( 'AT', 'AU', 'BE', 'BR', 'CA', 'CH', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'HK', 'IE', 'IN', 'IT', 'JP', 'LT', 'LU', 'LV', 'MX', 'NL', 'NZ', 'NO', 'PH', 'PL', 'PR', 'PT', 'RO', 'SE', 'SG', 'SK', 'US' ) );
+		return apply_filters('wc_stripe_supported_countries', array('AT', 'AU', 'BE', 'BR', 'CA', 'CH', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'HK', 'IE', 'IN', 'IT', 'JP', 'LT', 'LU', 'LV', 'MX', 'NL', 'NZ', 'NO', 'PH', 'PL', 'PR', 'PT', 'RO', 'SE', 'SG', 'SK', 'US'));
 	}
 
 	/**
@@ -119,7 +119,7 @@ 
 	 * @return bool
 	 */
 	public function are_keys_set() {
-		if ( empty( $this->secret_key ) || empty( $this->publishable_key ) ) {
+		if (empty($this->secret_key) || empty($this->publishable_key)) {
 			return false;
 		}
 
@@ -143,18 +143,18 @@ 
 	 * @since 4.0.0
 	 */
 	public function set_session() {
-		if ( ! is_product() || ( isset( WC()->session ) && WC()->session->has_session() ) ) {
+		if ( ! is_product() || (isset(WC()->session) && WC()->session->has_session())) {
 			return;
 		}
 
-		$session_class = apply_filters( 'woocommerce_session_handler', 'WC_Session_Handler' );
+		$session_class = apply_filters('woocommerce_session_handler', 'WC_Session_Handler');
 		$wc_session    = new $session_class();
 
-		if ( version_compare( WC_VERSION, '3.3', '>=' ) ) {
+		if (version_compare(WC_VERSION, '3.3', '>=')) {
 			$wc_session->init();
 		}
 
-		$wc_session->set_customer_session_cookie( true );
+		$wc_session->set_customer_session_cookie(true);
 	}
 
 	/**
@@ -164,40 +164,40 @@ 
 	 * @version 4.0.0
 	 */
 	public function init() {
-		add_action( 'wp_enqueue_scripts', array( $this, 'scripts' ) );
+		add_action('wp_enqueue_scripts', array($this, 'scripts'));
 
 		/*
 		 * In order to display the Payment Request button in the correct position,
 		 * a new hook was added to WooCommerce 3.0. In older versions of WooCommerce,
 		 * CSS is used to position the button.
 		 */
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_button', array($this, 'display_payment_request_button_separator_html'), 2);
 		} else {
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_html' ), 1 );
-			add_action( 'woocommerce_after_add_to_cart_quantity', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_html'), 1);
+			add_action('woocommerce_after_add_to_cart_quantity', array($this, 'display_payment_request_button_separator_html'), 2);
 		}
 
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_proceed_to_checkout', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_proceed_to_checkout', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_html' ), 1 );
-		add_action( 'woocommerce_checkout_before_customer_details', array( $this, 'display_payment_request_button_separator_html' ), 2 );
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_html'), 1);
+		add_action('woocommerce_checkout_before_customer_details', array($this, 'display_payment_request_button_separator_html'), 2);
 
-		add_action( 'wc_ajax_wc_stripe_get_cart_details', array( $this, 'ajax_get_cart_details' ) );
-		add_action( 'wc_ajax_wc_stripe_get_shipping_options', array( $this, 'ajax_get_shipping_options' ) );
-		add_action( 'wc_ajax_wc_stripe_update_shipping_method', array( $this, 'ajax_update_shipping_method' ) );
-		add_action( 'wc_ajax_wc_stripe_create_order', array( $this, 'ajax_create_order' ) );
-		add_action( 'wc_ajax_wc_stripe_add_to_cart', array( $this, 'ajax_add_to_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_get_selected_product_data', array( $this, 'ajax_get_selected_product_data' ) );
-		add_action( 'wc_ajax_wc_stripe_clear_cart', array( $this, 'ajax_clear_cart' ) );
-		add_action( 'wc_ajax_wc_stripe_log_errors', array( $this, 'ajax_log_errors' ) );
+		add_action('wc_ajax_wc_stripe_get_cart_details', array($this, 'ajax_get_cart_details'));
+		add_action('wc_ajax_wc_stripe_get_shipping_options', array($this, 'ajax_get_shipping_options'));
+		add_action('wc_ajax_wc_stripe_update_shipping_method', array($this, 'ajax_update_shipping_method'));
+		add_action('wc_ajax_wc_stripe_create_order', array($this, 'ajax_create_order'));
+		add_action('wc_ajax_wc_stripe_add_to_cart', array($this, 'ajax_add_to_cart'));
+		add_action('wc_ajax_wc_stripe_get_selected_product_data', array($this, 'ajax_get_selected_product_data'));
+		add_action('wc_ajax_wc_stripe_clear_cart', array($this, 'ajax_clear_cart'));
+		add_action('wc_ajax_wc_stripe_log_errors', array($this, 'ajax_log_errors'));
 
-		add_filter( 'woocommerce_gateway_title', array( $this, 'filter_gateway_title' ), 10, 2 );
-		add_filter( 'woocommerce_validate_postcode', array( $this, 'postal_code_validation' ), 10, 3 );
+		add_filter('woocommerce_gateway_title', array($this, 'filter_gateway_title'), 10, 2);
+		add_filter('woocommerce_validate_postcode', array($this, 'postal_code_validation'), 10, 3);
 
-		add_action( 'woocommerce_checkout_order_processed', array( $this, 'add_order_meta' ), 10, 2 );
+		add_action('woocommerce_checkout_order_processed', array($this, 'add_order_meta'), 10, 2);
 	}
 
 	/**
@@ -208,7 +208,7 @@ 
 	 * @return string
 	 */
 	public function get_button_type() {
-		return isset( $this->stripe_settings['payment_request_button_type'] ) ? $this->stripe_settings['payment_request_button_type'] : 'default';
+		return isset($this->stripe_settings['payment_request_button_type']) ? $this->stripe_settings['payment_request_button_type'] : 'default';
 	}
 
 	/**
@@ -219,7 +219,7 @@ 
 	 * @return string
 	 */
 	public function get_button_theme() {
-		return isset( $this->stripe_settings['payment_request_button_theme'] ) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
+		return isset($this->stripe_settings['payment_request_button_theme']) ? $this->stripe_settings['payment_request_button_theme'] : 'dark';
 	}
 
 	/**
@@ -230,7 +230,7 @@ 
 	 * @return string
 	 */
 	public function get_button_height() {
-		return isset( $this->stripe_settings['payment_request_button_height'] ) ? str_replace( 'px', '', $this->stripe_settings['payment_request_button_height'] ) : '64';
+		return isset($this->stripe_settings['payment_request_button_height']) ? str_replace('px', '', $this->stripe_settings['payment_request_button_height']) : '64';
 	}
 
 	/**
@@ -240,40 +240,40 @@ 
 	 * @version 4.0.0
 	 */
 	public function get_product_data() {
-		if ( ! is_product() ) {
+		if ( ! is_product()) {
 			return false;
 		}
 
 		global $post;
 
-		$product = wc_get_product( $post->ID );
+		$product = wc_get_product($post->ID);
 
 		$data  = array();
 		$items = array();
 
 		$items[] = array(
-			'label'  => WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->name : $product->get_name(),
-			'amount' => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() ),
+			'label'  => WC_Stripe_Helper::is_wc_lt('3.0') ? $product->name : $product->get_name(),
+			'amount' => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price()),
 		);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 		}
 
-		if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+		if (wc_shipping_enabled() && $product->needs_shipping()) {
 			$items[] = array(
-				'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+				'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 				'amount'  => 0,
 				'pending' => true,
 			);
 
 			$data['shippingOptions'] = array(
 				'id'     => 'pending',
-				'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+				'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 				'detail' => '',
 				'amount' => 0,
 			);
@@ -281,41 +281,41 @@ 
 
 		$data['displayItems'] = $items;
 		$data['total']        = array(
-			'label'   => apply_filters( 'wc_stripe_payment_request_total_label', $this->total_label ),
-			'amount'  => WC_Stripe_Helper::get_stripe_amount( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() ),
+			'label'   => apply_filters('wc_stripe_payment_request_total_label', $this->total_label),
+			'amount'  => WC_Stripe_Helper::get_stripe_amount(WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price()),
 			'pending' => true,
 		);
 
-		$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-		$data['currency']        = strtolower( get_woocommerce_currency() );
-		$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+		$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+		$data['currency']        = strtolower(get_woocommerce_currency());
+		$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-		return apply_filters( 'wc_stripe_payment_request_product_data', $data, $product );
+		return apply_filters('wc_stripe_payment_request_product_data', $data, $product);
 	}
 
 	/**
 	 * Filters the gateway title to reflect Payment Request type
 	 *
 	 */
-	public function filter_gateway_title( $title, $id ) {
+	public function filter_gateway_title($title, $id) {
 		global $post;
 
-		if ( ! is_object( $post ) ) {
+		if ( ! is_object($post)) {
 			return $title;
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			$method_title = get_post_meta( $post->ID, '_payment_method_title', true );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			$method_title = get_post_meta($post->ID, '_payment_method_title', true);
 		} else {
-			$order        = wc_get_order( $post->ID );
-			$method_title = is_object( $order ) ? $order->get_payment_method_title() : '';
+			$order        = wc_get_order($post->ID);
+			$method_title = is_object($order) ? $order->get_payment_method_title() : '';
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Apple Pay (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Apple Pay (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
-		if ( 'stripe' === $id && ! empty( $method_title ) && 'Chrome Payment Request (Stripe)' === $method_title ) {
+		if ('stripe' === $id && ! empty($method_title) && 'Chrome Payment Request (Stripe)' === $method_title) {
 			return $method_title;
 		}
 
@@ -328,16 +328,16 @@ 
 	 * @since 3.1.4
 	 * @version 4.0.0
 	 */
-	public function postal_code_validation( $valid, $postcode, $country ) {
+	public function postal_code_validation($valid, $postcode, $country) {
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return $valid;
 		}
 
-		$payment_request_type = isset( $_POST['payment_request_type'] ) ? wc_clean( $_POST['payment_request_type'] ) : '';
+		$payment_request_type = isset($_POST['payment_request_type']) ? wc_clean($_POST['payment_request_type']) : '';
 
-		if ( 'apple_pay' !== $payment_request_type ) {
+		if ('apple_pay' !== $payment_request_type) {
 			return $valid;
 		}
 
@@ -347,7 +347,7 @@ 
 		 * the order and not let it go through. The remedy for now is just to remove this validation.
 		 * Note that this only works with shipping providers that don't validate full postal codes.
 		 */
-		if ( 'GB' === $country || 'CA' === $country ) {
+		if ('GB' === $country || 'CA' === $country) {
 			return true;
 		}
 
@@ -362,29 +362,29 @@ 
 	 * @param int $order_id
 	 * @param array $posted_data The posted data from checkout form.
 	 */
-	public function add_order_meta( $order_id, $posted_data ) {
-		if ( empty( $_POST['payment_request_type'] ) ) {
+	public function add_order_meta($order_id, $posted_data) {
+		if (empty($_POST['payment_request_type'])) {
 			return;
 		}
 
-		$order = wc_get_order( $order_id );
+		$order = wc_get_order($order_id);
 
-		$payment_request_type = wc_clean( $_POST['payment_request_type'] );
+		$payment_request_type = wc_clean($_POST['payment_request_type']);
 
-		if ( 'apple_pay' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Apple Pay (Stripe)' );
+		if ('apple_pay' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				update_post_meta($order_id, '_payment_method_title', 'Apple Pay (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Apple Pay (Stripe)' );
+				$order->set_payment_method_title('Apple Pay (Stripe)');
 				$order->save();
 			}
 		}
 
-		if ( 'payment_request_api' === $payment_request_type ) {
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				update_post_meta( $order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)' );
+		if ('payment_request_api' === $payment_request_type) {
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				update_post_meta($order_id, '_payment_method_title', 'Chrome Payment Request (Stripe)');
 			} else {
-				$order->set_payment_method_title( 'Chrome Payment Request (Stripe)' );
+				$order->set_payment_method_title('Chrome Payment Request (Stripe)');
 				$order->save();
 			}
 		}
@@ -423,20 +423,20 @@ 
 	 * @return bool
 	 */
 	public function allowed_items_in_cart() {
-		foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
-			$_product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
+		foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
+			$_product = apply_filters('woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key);
 
-			if ( ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $_product->product_type : $_product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $_product->product_type : $_product->get_type()), $this->supported_product_types())) {
 				return false;
 			}
 
 			// Trial subscriptions with shipping are not supported
-			if ( class_exists( 'WC_Subscriptions_Order' ) && WC_Subscriptions_Cart::cart_contains_subscription() && $_product->needs_shipping() && WC_Subscriptions_Product::get_trial_length( $_product ) > 0 ) {
+			if (class_exists('WC_Subscriptions_Order') && WC_Subscriptions_Cart::cart_contains_subscription() && $_product->needs_shipping() && WC_Subscriptions_Product::get_trial_length($_product) > 0) {
 				return false;
 			}
 
 			// Pre Orders compatbility where we don't support charge upon release.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release( WC_Pre_Orders_Cart::get_pre_order_product() ) ) {
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Cart::cart_contains_pre_order() && WC_Pre_Orders_Product::product_is_charged_upon_release(WC_Pre_Orders_Cart::get_pre_order_product())) {
 				return false;
 			}
 		}
@@ -452,83 +452,83 @@ 
 	 */
 	public function scripts() {
 		// If keys are not set bail.
-		if ( ! $this->are_keys_set() ) {
-			WC_Stripe_Logger::log( 'Keys are not set correctly.' );
+		if ( ! $this->are_keys_set()) {
+			WC_Stripe_Logger::log('Keys are not set correctly.');
 			return;
 		}
 
 		// If no SSL bail.
-		if ( ! $this->testmode && ! is_ssl() ) {
-			WC_Stripe_Logger::log( 'Stripe Payment Request live mode requires SSL.' );
+		if ( ! $this->testmode && ! is_ssl()) {
+			WC_Stripe_Logger::log('Stripe Payment Request live mode requires SSL.');
 			return;
 		}
 
-		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_product() && ! is_cart() && ! is_checkout() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() ) {
+		if (is_product()) {
 			global $post;
 
-			$product = wc_get_product( $post->ID );
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
-			if ( apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+			if (apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 				return;
 			}
 		}
 
-		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+		$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
 
 		$stripe_params = array(
-			'ajax_url'        => WC_AJAX::get_endpoint( '%%endpoint%%' ),
+			'ajax_url'        => WC_AJAX::get_endpoint('%%endpoint%%'),
 			'stripe'          => array(
 				'key'                => $this->publishable_key,
-				'allow_prepaid_card' => apply_filters( 'wc_stripe_allow_prepaid_card', true ) ? 'yes' : 'no',
+				'allow_prepaid_card' => apply_filters('wc_stripe_allow_prepaid_card', true) ? 'yes' : 'no',
 			),
 			'nonce'           => array(
-				'payment'                   => wp_create_nonce( 'wc-stripe-payment-request' ),
-				'shipping'                  => wp_create_nonce( 'wc-stripe-payment-request-shipping' ),
-				'update_shipping'           => wp_create_nonce( 'wc-stripe-update-shipping-method' ),
-				'checkout'                  => wp_create_nonce( 'woocommerce-process_checkout' ),
-				'add_to_cart'               => wp_create_nonce( 'wc-stripe-add-to-cart' ),
-				'get_selected_product_data' => wp_create_nonce( 'wc-stripe-get-selected-product-data' ),
-				'log_errors'                => wp_create_nonce( 'wc-stripe-log-errors' ),
-				'clear_cart'                => wp_create_nonce( 'wc-stripe-clear-cart' ),
+				'payment'                   => wp_create_nonce('wc-stripe-payment-request'),
+				'shipping'                  => wp_create_nonce('wc-stripe-payment-request-shipping'),
+				'update_shipping'           => wp_create_nonce('wc-stripe-update-shipping-method'),
+				'checkout'                  => wp_create_nonce('woocommerce-process_checkout'),
+				'add_to_cart'               => wp_create_nonce('wc-stripe-add-to-cart'),
+				'get_selected_product_data' => wp_create_nonce('wc-stripe-get-selected-product-data'),
+				'log_errors'                => wp_create_nonce('wc-stripe-log-errors'),
+				'clear_cart'                => wp_create_nonce('wc-stripe-clear-cart'),
 			),
 			'i18n'            => array(
-				'no_prepaid_card'  => __( 'Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe' ),
+				'no_prepaid_card'  => __('Sorry, we\'re not accepting prepaid cards at this time.', 'woocommerce-gateway-stripe'),
 				/* translators: Do not translate the [option] placeholder */
-				'unknown_shipping' => __( 'Unknown shipping option "[option]".', 'woocommerce-gateway-stripe' ),
+				'unknown_shipping' => __('Unknown shipping option "[option]".', 'woocommerce-gateway-stripe'),
 			),
 			'checkout'        => array(
 				'url'            => wc_get_checkout_url(),
-				'currency_code'  => strtolower( get_woocommerce_currency() ),
-				'country_code'   => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+				'currency_code'  => strtolower(get_woocommerce_currency()),
+				'country_code'   => substr(get_option('woocommerce_default_country'), 0, 2),
 				'needs_shipping' => WC()->cart->needs_shipping() ? 'yes' : 'no',
 			),
 			'button'          => array(
 				'type'   => $this->get_button_type(),
 				'theme'  => $this->get_button_theme(),
 				'height' => $this->get_button_height(),
-				'locale' => apply_filters( 'wc_stripe_payment_request_button_locale', substr( get_locale(), 0, 2 ) ), // Default format is en_US.
+				'locale' => apply_filters('wc_stripe_payment_request_button_locale', substr(get_locale(), 0, 2)), // Default format is en_US.
 			),
 			'is_product_page' => is_product(),
 			'product'         => $this->get_product_data(),
 		);
 
-		wp_register_script( 'stripe', 'https://js.stripe.com/v3/', '', '3.0', true );
-		wp_register_script( 'wc_stripe_payment_request', plugins_url( 'assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE ), array( 'jquery', 'stripe' ), WC_STRIPE_VERSION, true );
+		wp_register_script('stripe', 'https://js.stripe.com/v3/', '', '3.0', true);
+		wp_register_script('wc_stripe_payment_request', plugins_url('assets/js/stripe-payment-request' . $suffix . '.js', WC_STRIPE_MAIN_FILE), array('jquery', 'stripe'), WC_STRIPE_VERSION, true);
 
-		wp_localize_script( 'wc_stripe_payment_request', 'wc_stripe_payment_request_params', apply_filters( 'wc_stripe_payment_request_params', $stripe_params ) );
+		wp_localize_script('wc_stripe_payment_request', 'wc_stripe_payment_request_params', apply_filters('wc_stripe_payment_request_params', $stripe_params));
 
-		wp_enqueue_script( 'wc_stripe_payment_request' );
+		wp_enqueue_script('wc_stripe_payment_request');
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
-		if ( isset( $gateways['stripe'] ) ) {
+		if (isset($gateways['stripe'])) {
 			$gateways['stripe']->payment_scripts();
 		}
 	}
@@ -544,42 +544,42 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() && apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+		if (is_product() && apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() ) {
-			$product = wc_get_product( $post->ID );
+		if (is_product()) {
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
 			// Trial subscriptions with shipping are not supported
-			if ( class_exists( 'WC_Subscriptions_Order' ) && $product->needs_shipping() && WC_Subscriptions_Product::get_trial_length( $product ) > 0 ) {
+			if (class_exists('WC_Subscriptions_Order') && $product->needs_shipping() && WC_Subscriptions_Product::get_trial_length($product) > 0) {
 				return;
 			}
 
 			// Pre Orders charge upon release not supported.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Product::product_is_charged_upon_release( $product ) ) {
-				WC_Stripe_Logger::log( 'Pre Order charge upon release is not supported. ( Payment Request button disabled )' );
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Product::product_is_charged_upon_release($product)) {
+				WC_Stripe_Logger::log('Pre Order charge upon release is not supported. ( Payment Request button disabled )');
 				return;
 			}
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
@@ -603,47 +603,47 @@ 
 
 		$gateways = WC()->payment_gateways->get_available_payment_gateways();
 
-		if ( ! isset( $gateways['stripe'] ) ) {
+		if ( ! isset($gateways['stripe'])) {
 			return;
 		}
 
-		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset( $_GET['pay_for_order'] ) ) {
+		if ( ! is_cart() && ! is_checkout() && ! is_product() && ! isset($_GET['pay_for_order'])) {
 			return;
 		}
 
-		if ( is_product() && apply_filters( 'wc_stripe_hide_payment_request_on_product_page', false, $post ) ) {
+		if (is_product() && apply_filters('wc_stripe_hide_payment_request_on_product_page', false, $post)) {
 			return;
 		}
 
-		if ( is_checkout() && ! apply_filters( 'wc_stripe_show_payment_request_on_checkout', false, $post ) ) {
+		if (is_checkout() && ! apply_filters('wc_stripe_show_payment_request_on_checkout', false, $post)) {
 			return;
 		}
 
-		if ( is_product() ) {
-			$product = wc_get_product( $post->ID );
+		if (is_product()) {
+			$product = wc_get_product($post->ID);
 
-			if ( ! is_object( $product ) || ! in_array( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ), $this->supported_product_types() ) ) {
+			if ( ! is_object($product) || ! in_array((WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()), $this->supported_product_types())) {
 				return;
 			}
 
 			// Trial subscriptions with shipping are not supported
-			if ( class_exists( 'WC_Subscriptions_Order' ) && $product->needs_shipping() && WC_Subscriptions_Product::get_trial_length( $product ) > 0 ) {
+			if (class_exists('WC_Subscriptions_Order') && $product->needs_shipping() && WC_Subscriptions_Product::get_trial_length($product) > 0) {
 				return;
 			}
 
 			// Pre Orders charge upon release not supported.
-			if ( class_exists( 'WC_Pre_Orders_Order' ) && WC_Pre_Orders_Product::product_is_charged_upon_release( $product ) ) {
-				WC_Stripe_Logger::log( 'Pre Order charge upon release is not supported. ( Payment Request button disabled )' );
+			if (class_exists('WC_Pre_Orders_Order') && WC_Pre_Orders_Product::product_is_charged_upon_release($product)) {
+				WC_Stripe_Logger::log('Pre Order charge upon release is not supported. ( Payment Request button disabled )');
 				return;
 			}
 		} else {
-			if ( ! $this->allowed_items_in_cart() ) {
-				WC_Stripe_Logger::log( 'Items in the cart has unsupported product type ( Payment Request button disabled )' );
+			if ( ! $this->allowed_items_in_cart()) {
+				WC_Stripe_Logger::log('Items in the cart has unsupported product type ( Payment Request button disabled )');
 				return;
 			}
 		}
 		?>
-		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e( 'OR', 'woocommerce-gateway-stripe' ); ?> &mdash;</p>
+		<p id="wc-stripe-payment-request-button-separator" style="margin-top:1.5em;text-align:center;display:none;">&mdash; <?php esc_html_e('OR', 'woocommerce-gateway-stripe'); ?> &mdash;</p>
 		<?php
 	}
 
@@ -654,11 +654,11 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_log_errors() {
-		check_ajax_referer( 'wc-stripe-log-errors', 'security' );
+		check_ajax_referer('wc-stripe-log-errors', 'security');
 
-		$errors = wc_clean( stripslashes( $_POST['errors'] ) );
+		$errors = wc_clean(stripslashes($_POST['errors']));
 
-		WC_Stripe_Logger::log( $errors );
+		WC_Stripe_Logger::log($errors);
 
 		exit;
 	}
@@ -670,7 +670,7 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_clear_cart() {
-		check_ajax_referer( 'wc-stripe-clear-cart', 'security' );
+		check_ajax_referer('wc-stripe-clear-cart', 'security');
 
 		WC()->cart->empty_cart();
 		exit;
@@ -680,10 +680,10 @@ 
 	 * Get cart details.
 	 */
 	public function ajax_get_cart_details() {
-		check_ajax_referer( 'wc-stripe-payment-request', 'security' );
+		check_ajax_referer('wc-stripe-payment-request', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->cart->calculate_totals();
@@ -694,14 +694,14 @@ 
 		$data = array(
 			'shipping_required' => WC()->cart->needs_shipping(),
 			'order_data'        => array(
-				'currency'     => strtolower( $currency ),
-				'country_code' => substr( get_option( 'woocommerce_default_country' ), 0, 2 ),
+				'currency'     => strtolower($currency),
+				'country_code' => substr(get_option('woocommerce_default_country'), 0, 2),
 			),
 		);
 
 		$data['order_data'] += $this->build_display_items();
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -712,7 +712,7 @@ 
 	 * @see WC_Shipping::get_packages().
 	 */
 	public function ajax_get_shipping_options() {
-		check_ajax_referer( 'wc-stripe-payment-request-shipping', 'security' );
+		check_ajax_referer('wc-stripe-payment-request-shipping', 'security');
 
 		try {
 			// Set the shipping package.
@@ -728,34 +728,34 @@ 
 				)
 			);
 
-			$this->calculate_shipping( apply_filters( 'wc_stripe_payment_request_shipping_posted_values', $posted ) );
+			$this->calculate_shipping(apply_filters('wc_stripe_payment_request_shipping_posted_values', $posted));
 
 			// Set the shipping options.
 			$data     = array();
 			$packages = WC()->shipping->get_packages();
 
-			if ( ! empty( $packages ) && WC()->customer->has_calculated_shipping() ) {
-				foreach ( $packages as $package_key => $package ) {
-					if ( empty( $package['rates'] ) ) {
-						throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+			if ( ! empty($packages) && WC()->customer->has_calculated_shipping()) {
+				foreach ($packages as $package_key => $package) {
+					if (empty($package['rates'])) {
+						throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 					}
 
-					foreach ( $package['rates'] as $key => $rate ) {
+					foreach ($package['rates'] as $key => $rate) {
 						$data['shipping_options'][] = array(
 							'id'     => $rate->id,
 							'label'  => $rate->label,
 							'detail' => '',
-							'amount' => WC_Stripe_Helper::get_stripe_amount( $rate->cost ),
+							'amount' => WC_Stripe_Helper::get_stripe_amount($rate->cost),
 						);
 					}
 				}
 			} else {
-				throw new Exception( __( 'Unable to find shipping method for address.', 'woocommerce-gateway-stripe' ) );
+				throw new Exception(__('Unable to find shipping method for address.', 'woocommerce-gateway-stripe'));
 			}
 
-			if ( isset( $data[0] ) ) {
+			if (isset($data[0])) {
 				// Auto select the first shipping method.
-				WC()->session->set( 'chosen_shipping_methods', array( $data[0]['id'] ) );
+				WC()->session->set('chosen_shipping_methods', array($data[0]['id']));
 			}
 
 			WC()->cart->calculate_totals();
@@ -763,12 +763,12 @@ 
 			$data          += $this->build_display_items();
 			$data['result'] = 'success';
 
-			wp_send_json( $data );
-		} catch ( Exception $e ) {
+			wp_send_json($data);
+		} catch (Exception $e) {
 			$data          += $this->build_display_items();
 			$data['result'] = 'invalid_shipping_address';
 
-			wp_send_json( $data );
+			wp_send_json($data);
 		}
 	}
 
@@ -776,22 +776,22 @@ 
 	 * Update shipping method.
 	 */
 	public function ajax_update_shipping_method() {
-		check_ajax_referer( 'wc-stripe-update-shipping-method', 'security' );
+		check_ajax_referer('wc-stripe-update-shipping-method', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
-		$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );
-		$shipping_method         = filter_input( INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY );
+		$chosen_shipping_methods = WC()->session->get('chosen_shipping_methods');
+		$shipping_method         = filter_input(INPUT_POST, 'shipping_method', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
 
-		if ( is_array( $shipping_method ) ) {
-			foreach ( $shipping_method as $i => $value ) {
-				$chosen_shipping_methods[ $i ] = wc_clean( $value );
+		if (is_array($shipping_method)) {
+			foreach ($shipping_method as $i => $value) {
+				$chosen_shipping_methods[$i] = wc_clean($value);
 			}
 		}
 
-		WC()->session->set( 'chosen_shipping_methods', $chosen_shipping_methods );
+		WC()->session->set('chosen_shipping_methods', $chosen_shipping_methods);
 
 		WC()->cart->calculate_totals();
 
@@ -799,7 +799,7 @@ 
 		$data          += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -810,46 +810,46 @@ 
 	 * @return array $data
 	 */
 	public function ajax_get_selected_product_data() {
-		check_ajax_referer( 'wc-stripe-get-selected-product-data', 'security' );
+		check_ajax_referer('wc-stripe-get-selected-product-data', 'security');
 
 		try {
-			$product_id   = absint( $_POST['product_id'] );
-			$qty          = ! isset( $_POST['qty'] ) ? 1 : apply_filters( 'woocommerce_add_to_cart_quantity', absint( $_POST['qty'] ), $product_id );
-			$product      = wc_get_product( $product_id );
+			$product_id   = absint($_POST['product_id']);
+			$qty          = ! isset($_POST['qty']) ? 1 : apply_filters('woocommerce_add_to_cart_quantity', absint($_POST['qty']), $product_id);
+			$product      = wc_get_product($product_id);
 			$variation_id = null;
 
-			if ( ! is_a( $product, 'WC_Product' ) ) {
-				throw new Exception( sprintf( __( 'Product with the ID (%d) cannot be found.', 'woocommerce-gateway-stripe' ), $product_id ) );
+			if ( ! is_a($product, 'WC_Product')) {
+				throw new Exception(sprintf(__('Product with the ID (%d) cannot be found.', 'woocommerce-gateway-stripe'), $product_id));
 			}
 
-			if ( 'variable' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-				$attributes = array_map( 'wc_clean', $_POST['attributes'] );
+			if ('variable' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+				$attributes = array_map('wc_clean', $_POST['attributes']);
 
-				if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-					$variation_id = $product->get_matching_variation( $attributes );
+				if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+					$variation_id = $product->get_matching_variation($attributes);
 				} else {
-					$data_store   = WC_Data_Store::load( 'product' );
-					$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+					$data_store   = WC_Data_Store::load('product');
+					$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 				}
 
-				if ( ! empty( $variation_id ) ) {
-					$product = wc_get_product( $variation_id );
+				if ( ! empty($variation_id)) {
+					$product = wc_get_product($variation_id);
 				}
-			} elseif ( 'simple' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) ) {
-				$product = wc_get_product( $product_id );
+			} elseif ('simple' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type())) {
+				$product = wc_get_product($product_id);
 			}
 
 			// Force quantity to 1 if sold individually and check for existing item in cart.
-			if ( $product->is_sold_individually() ) {
-				$qty = apply_filters( 'wc_stripe_payment_request_add_to_cart_sold_individually_quantity', 1, $qty, $product_id, $variation_id );
+			if ($product->is_sold_individually()) {
+				$qty = apply_filters('wc_stripe_payment_request_add_to_cart_sold_individually_quantity', 1, $qty, $product_id, $variation_id);
 			}
 
-			if ( ! $product->has_enough_stock( $qty ) ) {
+			if ( ! $product->has_enough_stock($qty)) {
 				/* translators: 1: product name 2: quantity in stock */
-				throw new Exception( sprintf( __( 'You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-gateway-stripe' ), $product->get_name(), wc_format_stock_quantity_for_display( $product->get_stock_quantity(), $product ) ) );
+				throw new Exception(sprintf(__('You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-gateway-stripe'), $product->get_name(), wc_format_stock_quantity_for_display($product->get_stock_quantity(), $product)));
 			}
 
-			$total = $qty * ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->price : $product->get_price() );
+			$total = $qty * (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->price : $product->get_price());
 
 			$quantity_label = 1 < $qty ? ' (x' . $qty . ')' : '';
 
@@ -857,28 +857,28 @@ 
 			$items = array();
 
 			$items[] = array(
-				'label'  => ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->name : $product->get_name() ) . $quantity_label,
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $total ),
+				'label'  => (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->name : $product->get_name()) . $quantity_label,
+				'amount' => WC_Stripe_Helper::get_stripe_amount($total),
 			);
 
-			if ( wc_tax_enabled() ) {
+			if (wc_tax_enabled()) {
 				$items[] = array(
-					'label'   => __( 'Tax', 'woocommerce-gateway-stripe' ),
+					'label'   => __('Tax', 'woocommerce-gateway-stripe'),
 					'amount'  => 0,
 					'pending' => true,
 				);
 			}
 
-			if ( wc_shipping_enabled() && $product->needs_shipping() ) {
+			if (wc_shipping_enabled() && $product->needs_shipping()) {
 				$items[] = array(
-					'label'   => __( 'Shipping', 'woocommerce-gateway-stripe' ),
+					'label'   => __('Shipping', 'woocommerce-gateway-stripe'),
 					'amount'  => 0,
 					'pending' => true,
 				);
 
 				$data['shippingOptions'] = array(
 					'id'     => 'pending',
-					'label'  => __( 'Pending', 'woocommerce-gateway-stripe' ),
+					'label'  => __('Pending', 'woocommerce-gateway-stripe'),
 					'detail' => '',
 					'amount' => 0,
 				);
@@ -887,17 +887,17 @@ 
 			$data['displayItems'] = $items;
 			$data['total']        = array(
 				'label'   => $this->total_label,
-				'amount'  => WC_Stripe_Helper::get_stripe_amount( $total ),
+				'amount'  => WC_Stripe_Helper::get_stripe_amount($total),
 				'pending' => true,
 			);
 
-			$data['requestShipping'] = ( wc_shipping_enabled() && $product->needs_shipping() );
-			$data['currency']        = strtolower( get_woocommerce_currency() );
-			$data['country_code']    = substr( get_option( 'woocommerce_default_country' ), 0, 2 );
+			$data['requestShipping'] = (wc_shipping_enabled() && $product->needs_shipping());
+			$data['currency']        = strtolower(get_woocommerce_currency());
+			$data['country_code']    = substr(get_option('woocommerce_default_country'), 0, 2);
 
-			wp_send_json( $data );
-		} catch ( Exception $e ) {
-			wp_send_json( array( 'error' => wp_strip_all_tags( $e->getMessage() ) ) );
+			wp_send_json($data);
+		} catch (Exception $e) {
+			wp_send_json(array('error' => wp_strip_all_tags($e->getMessage())));
 		}
 	}
 
@@ -909,36 +909,36 @@ 
 	 * @return array $data
 	 */
 	public function ajax_add_to_cart() {
-		check_ajax_referer( 'wc-stripe-add-to-cart', 'security' );
+		check_ajax_referer('wc-stripe-add-to-cart', 'security');
 
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		$product_id = absint( $_POST['product_id'] );
-		$qty        = ! isset( $_POST['qty'] ) ? 1 : absint( $_POST['qty'] );
-		$product    = wc_get_product( $product_id );
+		$product_id = absint($_POST['product_id']);
+		$qty        = ! isset($_POST['qty']) ? 1 : absint($_POST['qty']);
+		$product    = wc_get_product($product_id);
 
 		// First empty the cart to prevent wrong calculation.
 		WC()->cart->empty_cart();
 
-		if ( 'variable' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) && isset( $_POST['attributes'] ) ) {
-			$attributes = array_map( 'wc_clean', $_POST['attributes'] );
+		if ('variable' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type()) && isset($_POST['attributes'])) {
+			$attributes = array_map('wc_clean', $_POST['attributes']);
 
-			if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-				$variation_id = $product->get_matching_variation( $attributes );
+			if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+				$variation_id = $product->get_matching_variation($attributes);
 			} else {
-				$data_store   = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $product, $attributes );
+				$data_store   = WC_Data_Store::load('product');
+				$variation_id = $data_store->find_matching_product_variation($product, $attributes);
 			}
 
-			WC()->cart->add_to_cart( $product->get_id(), $qty, $variation_id, $attributes );
+			WC()->cart->add_to_cart($product->get_id(), $qty, $variation_id, $attributes);
 		}
 
-		if ( 'simple' === ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $product->product_type : $product->get_type() ) ) {
-			WC()->cart->add_to_cart( $product->get_id(), $qty );
+		if ('simple' === (WC_Stripe_Helper::is_wc_lt('3.0') ? $product->product_type : $product->get_type())) {
+			WC()->cart->add_to_cart($product->get_id(), $qty);
 		}
 
 		WC()->cart->calculate_totals();
@@ -947,7 +947,7 @@ 
 		$data          += $this->build_display_items();
 		$data['result'] = 'success';
 
-		wp_send_json( $data );
+		wp_send_json($data);
 	}
 
 	/**
@@ -960,31 +960,31 @@ 
 	 * @version 4.0.0
 	 */
 	public function normalize_state() {
-		$billing_country  = ! empty( $_POST['billing_country'] ) ? wc_clean( $_POST['billing_country'] ) : '';
-		$shipping_country = ! empty( $_POST['shipping_country'] ) ? wc_clean( $_POST['shipping_country'] ) : '';
-		$billing_state    = ! empty( $_POST['billing_state'] ) ? wc_clean( $_POST['billing_state'] ) : '';
-		$shipping_state   = ! empty( $_POST['shipping_state'] ) ? wc_clean( $_POST['shipping_state'] ) : '';
+		$billing_country  = ! empty($_POST['billing_country']) ? wc_clean($_POST['billing_country']) : '';
+		$shipping_country = ! empty($_POST['shipping_country']) ? wc_clean($_POST['shipping_country']) : '';
+		$billing_state    = ! empty($_POST['billing_state']) ? wc_clean($_POST['billing_state']) : '';
+		$shipping_state   = ! empty($_POST['shipping_state']) ? wc_clean($_POST['shipping_state']) : '';
 
-		if ( $billing_state && $billing_country ) {
-			$valid_states = WC()->countries->get_states( $billing_country );
+		if ($billing_state && $billing_country) {
+			$valid_states = WC()->countries->get_states($billing_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $billing_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $billing_state)) {
 						$_POST['billing_state'] = $state_abbr;
 					}
 				}
 			}
 		}
 
-		if ( $shipping_state && $shipping_country ) {
-			$valid_states = WC()->countries->get_states( $shipping_country );
+		if ($shipping_state && $shipping_country) {
+			$valid_states = WC()->countries->get_states($shipping_country);
 
 			// Valid states found for country.
-			if ( ! empty( $valid_states ) && is_array( $valid_states ) && sizeof( $valid_states ) > 0 ) {
-				foreach ( $valid_states as $state_abbr => $state ) {
-					if ( preg_match( '/' . preg_quote( $state ) . '/i', $shipping_state ) ) {
+			if ( ! empty($valid_states) && is_array($valid_states) && sizeof($valid_states) > 0) {
+				foreach ($valid_states as $state_abbr => $state) {
+					if (preg_match('/' . preg_quote($state) . '/i', $shipping_state)) {
 						$_POST['shipping_state'] = $state_abbr;
 					}
 				}
@@ -999,19 +999,19 @@ 
 	 * @version 4.0.0
 	 */
 	public function ajax_create_order() {
-		if ( WC()->cart->is_empty() ) {
-			wp_send_json_error( __( 'Empty cart', 'woocommerce-gateway-stripe' ) );
+		if (WC()->cart->is_empty()) {
+			wp_send_json_error(__('Empty cart', 'woocommerce-gateway-stripe'));
 		}
 
-		if ( ! defined( 'WOOCOMMERCE_CHECKOUT' ) ) {
-			define( 'WOOCOMMERCE_CHECKOUT', true );
+		if ( ! defined('WOOCOMMERCE_CHECKOUT')) {
+			define('WOOCOMMERCE_CHECKOUT', true);
 		}
 
 		$this->normalize_state();
 
 		WC()->checkout()->process_checkout();
 
-		die( 0 );
+		die(0);
 	}
 
 	/**
@@ -1021,41 +1021,41 @@ 
 	 * @version 4.0.0
 	 * @param array $address
 	 */
-	protected function calculate_shipping( $address = array() ) {
+	protected function calculate_shipping($address = array()) {
 		$country   = $address['country'];
 		$state     = $address['state'];
 		$postcode  = $address['postcode'];
 		$city      = $address['city'];
 		$address_1 = $address['address'];
 		$address_2 = $address['address_2'];
-		$wc_states = WC()->countries->get_states( $country );
+		$wc_states = WC()->countries->get_states($country);
 
 		/**
 		 * In some versions of Chrome, state can be a full name. So we need
 		 * to convert that to abbreviation as WC is expecting that.
 		 */
-		if ( 2 < strlen( $state ) && ! empty( $wc_states ) ) {
-			$state = array_search( ucwords( strtolower( $state ) ), $wc_states, true );
+		if (2 < strlen($state) && ! empty($wc_states)) {
+			$state = array_search(ucwords(strtolower($state)), $wc_states, true);
 		}
 
 		WC()->shipping->reset_shipping();
 
-		if ( $postcode && WC_Validation::is_postcode( $postcode, $country ) ) {
-			$postcode = wc_format_postcode( $postcode, $country );
+		if ($postcode && WC_Validation::is_postcode($postcode, $country)) {
+			$postcode = wc_format_postcode($postcode, $country);
 		}
 
-		if ( $country ) {
-			WC()->customer->set_location( $country, $state, $postcode, $city );
-			WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
+		if ($country) {
+			WC()->customer->set_location($country, $state, $postcode, $city);
+			WC()->customer->set_shipping_location($country, $state, $postcode, $city);
 		} else {
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? WC()->customer->set_to_base() : WC()->customer->set_billing_address_to_base();
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? WC()->customer->set_shipping_to_base() : WC()->customer->set_shipping_address_to_base();
+			WC_Stripe_Helper::is_wc_lt('3.0') ? WC()->customer->set_to_base() : WC()->customer->set_billing_address_to_base();
+			WC_Stripe_Helper::is_wc_lt('3.0') ? WC()->customer->set_shipping_to_base() : WC()->customer->set_shipping_address_to_base();
 		}
 
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			WC()->customer->calculated_shipping( true );
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			WC()->customer->calculated_shipping(true);
 		} else {
-			WC()->customer->set_calculated_shipping( true );
+			WC()->customer->set_calculated_shipping(true);
 			WC()->customer->save();
 		}
 
@@ -1072,17 +1072,17 @@ 
 		$packages[0]['destination']['address']   = $address_1;
 		$packages[0]['destination']['address_2'] = $address_2;
 
-		foreach ( WC()->cart->get_cart() as $item ) {
-			if ( $item['data']->needs_shipping() ) {
-				if ( isset( $item['line_total'] ) ) {
+		foreach (WC()->cart->get_cart() as $item) {
+			if ($item['data']->needs_shipping()) {
+				if (isset($item['line_total'])) {
 					$packages[0]['contents_cost'] += $item['line_total'];
 				}
 			}
 		}
 
-		$packages = apply_filters( 'woocommerce_cart_shipping_packages', $packages );
+		$packages = apply_filters('woocommerce_cart_shipping_packages', $packages);
 
-		WC()->shipping->calculate_shipping( $packages );
+		WC()->shipping->calculate_shipping($packages);
 	}
 
 	/**
@@ -1091,19 +1091,19 @@ 
 	 * @since 3.1.0
 	 * @version 4.0.0
 	 */
-	protected function build_shipping_methods( $shipping_methods ) {
-		if ( empty( $shipping_methods ) ) {
+	protected function build_shipping_methods($shipping_methods) {
+		if (empty($shipping_methods)) {
 			return array();
 		}
 
 		$shipping = array();
 
-		foreach ( $shipping_methods as $method ) {
+		foreach ($shipping_methods as $method) {
 			$shipping[] = array(
 				'id'     => $method['id'],
 				'label'  => $method['label'],
 				'detail' => '',
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $method['amount']['value'] ),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($method['amount']['value']),
 			);
 		}
 
@@ -1117,8 +1117,8 @@ 
 	 * @version 4.0.0
 	 */
 	protected function build_display_items() {
-		if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
-			define( 'WOOCOMMERCE_CART', true );
+		if ( ! defined('WOOCOMMERCE_CART')) {
+			define('WOOCOMMERCE_CART', true);
 		}
 
 		$items     = array();
@@ -1126,71 +1126,71 @@ 
 		$discounts = 0;
 
 		// Default show only subtotal instead of itemization.
-		if ( ! apply_filters( 'wc_stripe_payment_request_hide_itemization', true ) ) {
-			foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
+		if ( ! apply_filters('wc_stripe_payment_request_hide_itemization', true)) {
+			foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) {
 				$amount         = $cart_item['line_subtotal'];
 				$subtotal      += $cart_item['line_subtotal'];
 				$quantity_label = 1 < $cart_item['quantity'] ? ' (x' . $cart_item['quantity'] . ')' : '';
 
-				$product_name = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $cart_item['data']->post->post_title : $cart_item['data']->get_name();
+				$product_name = WC_Stripe_Helper::is_wc_lt('3.0') ? $cart_item['data']->post->post_title : $cart_item['data']->get_name();
 
 				$item = array(
 					'label'  => $product_name . $quantity_label,
-					'amount' => WC_Stripe_Helper::get_stripe_amount( $amount ),
+					'amount' => WC_Stripe_Helper::get_stripe_amount($amount),
 				);
 
 				$items[] = $item;
 			}
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
-			$discounts = wc_format_decimal( WC()->cart->get_cart_discount_total(), WC()->cart->dp );
+		if (version_compare(WC_VERSION, '3.2', '<')) {
+			$discounts = wc_format_decimal(WC()->cart->get_cart_discount_total(), WC()->cart->dp);
 		} else {
-			$applied_coupons = array_values( WC()->cart->get_coupon_discount_totals() );
+			$applied_coupons = array_values(WC()->cart->get_coupon_discount_totals());
 
-			foreach ( $applied_coupons as $amount ) {
+			foreach ($applied_coupons as $amount) {
 				$discounts += (float) $amount;
 			}
 		}
 
-		$discounts   = wc_format_decimal( $discounts, WC()->cart->dp );
-		$tax         = wc_format_decimal( WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp );
-		$shipping    = wc_format_decimal( WC()->cart->shipping_total, WC()->cart->dp );
-		$items_total = wc_format_decimal( WC()->cart->cart_contents_total, WC()->cart->dp ) + $discounts;
-		$order_total = version_compare( WC_VERSION, '3.2', '<' ) ? wc_format_decimal( $items_total + $tax + $shipping - $discounts, WC()->cart->dp ) : WC()->cart->get_total( false );
+		$discounts   = wc_format_decimal($discounts, WC()->cart->dp);
+		$tax         = wc_format_decimal(WC()->cart->tax_total + WC()->cart->shipping_tax_total, WC()->cart->dp);
+		$shipping    = wc_format_decimal(WC()->cart->shipping_total, WC()->cart->dp);
+		$items_total = wc_format_decimal(WC()->cart->cart_contents_total, WC()->cart->dp) + $discounts;
+		$order_total = version_compare(WC_VERSION, '3.2', '<') ? wc_format_decimal($items_total + $tax + $shipping - $discounts, WC()->cart->dp) : WC()->cart->get_total(false);
 
-		if ( wc_tax_enabled() ) {
+		if (wc_tax_enabled()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Tax', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $tax ),
+				'label'  => esc_html(__('Tax', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($tax),
 			);
 		}
 
-		if ( WC()->cart->needs_shipping() ) {
+		if (WC()->cart->needs_shipping()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Shipping', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $shipping ),
+				'label'  => esc_html(__('Shipping', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($shipping),
 			);
 		}
 
-		if ( WC()->cart->has_discount() ) {
+		if (WC()->cart->has_discount()) {
 			$items[] = array(
-				'label'  => esc_html( __( 'Discount', 'woocommerce-gateway-stripe' ) ),
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $discounts ),
+				'label'  => esc_html(__('Discount', 'woocommerce-gateway-stripe')),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($discounts),
 			);
 		}
 
-		if ( version_compare( WC_VERSION, '3.2', '<' ) ) {
+		if (version_compare(WC_VERSION, '3.2', '<')) {
 			$cart_fees = WC()->cart->fees;
 		} else {
 			$cart_fees = WC()->cart->get_fees();
 		}
 
 		// Include fees and taxes as display items.
-		foreach ( $cart_fees as $key => $fee ) {
+		foreach ($cart_fees as $key => $fee) {
 			$items[] = array(
 				'label'  => $fee->name,
-				'amount' => WC_Stripe_Helper::get_stripe_amount( $fee->amount ),
+				'amount' => WC_Stripe_Helper::get_stripe_amount($fee->amount),
 			);
 		}
 
@@ -1198,7 +1198,7 @@ 
 			'displayItems' => $items,
 			'total'        => array(
 				'label'   => $this->total_label,
-				'amount'  => max( 0, apply_filters( 'woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount( $order_total ), $order_total, WC()->cart ) ),
+				'amount'  => max(0, apply_filters('woocommerce_stripe_calculated_total', WC_Stripe_Helper::get_stripe_amount($order_total), $order_total, WC()->cart)),
 				'pending' => false,
 			),
 		);

includes/compat/class-wc-stripe-subs-compat.php

Spacing +163 added lines, -163 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if ( ! defined('ABSPATH')) {
 	exit;
 }
 
@@ -15,21 +15,21 @@ 
 	public function __construct() {
 		parent::__construct();
 
-		if ( class_exists( 'WC_Subscriptions_Order' ) ) {
-			add_action( 'woocommerce_scheduled_subscription_payment_' . $this->id, array( $this, 'scheduled_subscription_payment' ), 10, 2 );
-			add_action( 'wcs_resubscribe_order_created', array( $this, 'delete_resubscribe_meta' ), 10 );
-			add_action( 'wcs_renewal_order_created', array( $this, 'delete_renewal_meta' ), 10 );
-			add_action( 'woocommerce_subscription_failing_payment_method_updated_stripe', array( $this, 'update_failing_payment_method' ), 10, 2 );
-			add_action( 'wc_stripe_cards_payment_fields', array( $this, 'display_update_subs_payment_checkout' ) );
-			add_action( 'wc_stripe_add_payment_method_' . $this->id . '_success', array( $this, 'handle_add_payment_method_success' ), 10, 2 );
+		if (class_exists('WC_Subscriptions_Order')) {
+			add_action('woocommerce_scheduled_subscription_payment_' . $this->id, array($this, 'scheduled_subscription_payment'), 10, 2);
+			add_action('wcs_resubscribe_order_created', array($this, 'delete_resubscribe_meta'), 10);
+			add_action('wcs_renewal_order_created', array($this, 'delete_renewal_meta'), 10);
+			add_action('woocommerce_subscription_failing_payment_method_updated_stripe', array($this, 'update_failing_payment_method'), 10, 2);
+			add_action('wc_stripe_cards_payment_fields', array($this, 'display_update_subs_payment_checkout'));
+			add_action('wc_stripe_add_payment_method_' . $this->id . '_success', array($this, 'handle_add_payment_method_success'), 10, 2);
 
 			// display the credit card used for a subscription in the "My Subscriptions" table
-			add_filter( 'woocommerce_my_subscriptions_payment_method', array( $this, 'maybe_render_subscription_payment_method' ), 10, 2 );
+			add_filter('woocommerce_my_subscriptions_payment_method', array($this, 'maybe_render_subscription_payment_method'), 10, 2);
 
 			// allow store managers to manually set Stripe as the payment method on a subscription
-			add_filter( 'woocommerce_subscription_payment_meta', array( $this, 'add_subscription_payment_meta' ), 10, 2 );
-			add_filter( 'woocommerce_subscription_validate_payment_meta', array( $this, 'validate_subscription_payment_meta' ), 10, 2 );
-			add_filter( 'wc_stripe_display_save_payment_method_checkbox', array( $this, 'maybe_hide_save_checkbox' ) );
+			add_filter('woocommerce_subscription_payment_meta', array($this, 'add_subscription_payment_meta'), 10, 2);
+			add_filter('woocommerce_subscription_validate_payment_meta', array($this, 'validate_subscription_payment_meta'), 10, 2);
+			add_filter('wc_stripe_display_save_payment_method_checkbox', array($this, 'maybe_hide_save_checkbox'));
 		}
 	}
 
@@ -40,8 +40,8 @@ 
 	 * @since 4.0.0
 	 * @version 4.0.0
 	 */
-	public function maybe_hide_save_checkbox( $display_tokenization ) {
-		if ( WC_Subscriptions_Cart::cart_contains_subscription() ) {
+	public function maybe_hide_save_checkbox($display_tokenization) {
+		if (WC_Subscriptions_Cart::cart_contains_subscription()) {
 			return false;
 		}
 
@@ -53,8 +53,8 @@ 
 	 * @param  int  $order_id
 	 * @return boolean
 	 */
-	public function has_subscription( $order_id ) {
-		return ( function_exists( 'wcs_order_contains_subscription' ) && ( wcs_order_contains_subscription( $order_id ) || wcs_is_subscription( $order_id ) || wcs_order_contains_renewal( $order_id ) ) );
+	public function has_subscription($order_id) {
+		return (function_exists('wcs_order_contains_subscription') && (wcs_order_contains_subscription($order_id) || wcs_is_subscription($order_id) || wcs_order_contains_renewal($order_id)));
 	}
 
 	/**
@@ -64,7 +64,7 @@ 
 	 * @return bool
 	 */
 	public function is_subs_change_payment() {
-		return ( isset( $_GET['pay_for_order'] ) && isset( $_GET['change_payment_method'] ) );
+		return (isset($_GET['pay_for_order']) && isset($_GET['change_payment_method']));
 	}
 
 	/**
@@ -75,8 +75,8 @@ 
 	 */
 	public function display_update_subs_payment_checkout() {
 		if (
-			apply_filters( 'wc_stripe_display_update_subs_payment_method_card_checkbox', true ) &&
-			wcs_user_has_subscription( get_current_user_id(), '', 'active' ) &&
+			apply_filters('wc_stripe_display_update_subs_payment_method_card_checkbox', true) &&
+			wcs_user_has_subscription(get_current_user_id(), '', 'active') &&
 			is_add_payment_method_page()
 		) {
 			printf(
@@ -84,8 +84,8 @@ 
 					<input id="wc-%1$s-update-subs-payment-method-card" name="wc-%1$s-update-subs-payment-method-card" type="checkbox" value="true" style="width:auto;" />
 					<label for="wc-%1$s-update-subs-payment-method-card" style="display:inline;">%2$s</label>
 				</p>',
-				esc_attr( $this->id ),
-				esc_html( apply_filters( 'wc_stripe_save_to_subs_text', __( 'Update the Payment Method used for all of my active subscriptions (optional).', 'woocommerce-gateway-stripe' ) ) )
+				esc_attr($this->id),
+				esc_html(apply_filters('wc_stripe_save_to_subs_text', __('Update the Payment Method used for all of my active subscriptions (optional).', 'woocommerce-gateway-stripe')))
 			);
 		}
 	}
@@ -97,16 +97,16 @@ 
 	 * @param string $source_id
 	 * @param object $source_object
 	 */
-	public function handle_add_payment_method_success( $source_id, $source_object ) {
-		if ( isset( $_POST[ 'wc-' . $this->id . '-update-subs-payment-method-card' ] ) ) {
+	public function handle_add_payment_method_success($source_id, $source_object) {
+		if (isset($_POST['wc-' . $this->id . '-update-subs-payment-method-card'])) {
 			$all_subs = wcs_get_users_subscriptions();
 
-			if ( ! empty( $all_subs ) ) {
-				foreach ( $all_subs as $sub ) {
-					if ( 'active' === $sub->get_status() ) {
-						update_post_meta( $sub->get_id(), '_stripe_source_id', $source_id );
-						update_post_meta( $sub->get_id(), '_payment_method', $this->id );
-						update_post_meta( $sub->get_id(), '_payment_method_title', $this->method_title );
+			if ( ! empty($all_subs)) {
+				foreach ($all_subs as $sub) {
+					if ('active' === $sub->get_status()) {
+						update_post_meta($sub->get_id(), '_stripe_source_id', $source_id);
+						update_post_meta($sub->get_id(), '_payment_method', $this->id);
+						update_post_meta($sub->get_id(), '_payment_method_title', $this->method_title);
 					}
 				}
 			}
@@ -120,34 +120,34 @@ 
 	 * @since 4.1.11 Remove 3DS check as it is not needed.
 	 * @param int $order_id
 	 */
-	public function change_subs_payment_method( $order_id ) {
+	public function change_subs_payment_method($order_id) {
 		try {
-			$subscription    = wc_get_order( $order_id );
-			$prepared_source = $this->prepare_source( get_current_user_id(), true );
+			$subscription    = wc_get_order($order_id);
+			$prepared_source = $this->prepare_source(get_current_user_id(), true);
 			$source_object   = $prepared_source->source_object;
 
 			// Check if we don't allow prepaid credit cards.
-			if ( ! apply_filters( 'wc_stripe_allow_prepaid_card', true ) && $this->is_prepaid_card( $source_object ) ) {
-				$localized_message = __( 'Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe' );
-				throw new WC_Stripe_Exception( print_r( $source_object, true ), $localized_message );
+			if ( ! apply_filters('wc_stripe_allow_prepaid_card', true) && $this->is_prepaid_card($source_object)) {
+				$localized_message = __('Sorry, we\'re not accepting prepaid cards at this time. Your credit card has not been charge. Please try with alternative payment method.', 'woocommerce-gateway-stripe');
+				throw new WC_Stripe_Exception(print_r($source_object, true), $localized_message);
 			}
 
-			if ( empty( $prepared_source->source ) ) {
-				$localized_message = __( 'Payment processing failed. Please retry.', 'woocommerce-gateway-stripe' );
-				throw new WC_Stripe_Exception( print_r( $prepared_source, true ), $localized_message );
+			if (empty($prepared_source->source)) {
+				$localized_message = __('Payment processing failed. Please retry.', 'woocommerce-gateway-stripe');
+				throw new WC_Stripe_Exception(print_r($prepared_source, true), $localized_message);
 			}
 
-			$this->save_source_to_order( $subscription, $prepared_source );
+			$this->save_source_to_order($subscription, $prepared_source);
 
-			do_action( 'wc_stripe_change_subs_payment_method_success', $prepared_source->source, $prepared_source );
+			do_action('wc_stripe_change_subs_payment_method_success', $prepared_source->source, $prepared_source);
 
 			return array(
 				'result'   => 'success',
-				'redirect' => $this->get_return_url( $subscription ),
+				'redirect' => $this->get_return_url($subscription),
 			);
-		} catch ( WC_Stripe_Exception $e ) {
-			wc_add_notice( $e->getLocalizedMessage(), 'error' );
-			WC_Stripe_Logger::log( 'Error: ' . $e->getMessage() );
+		} catch (WC_Stripe_Exception $e) {
+			wc_add_notice($e->getLocalizedMessage(), 'error');
+			WC_Stripe_Logger::log('Error: ' . $e->getMessage());
 		}
 	}
 
@@ -156,16 +156,16 @@ 
 	 * @param  int $order_id
 	 * @return array
 	 */
-	public function process_payment( $order_id, $retry = true, $force_save_source = false, $previous_error = false ) {
-		if ( $this->has_subscription( $order_id ) ) {
-			if ( $this->is_subs_change_payment() ) {
-				return $this->change_subs_payment_method( $order_id );
+	public function process_payment($order_id, $retry = true, $force_save_source = false, $previous_error = false) {
+		if ($this->has_subscription($order_id)) {
+			if ($this->is_subs_change_payment()) {
+				return $this->change_subs_payment_method($order_id);
 			}
 
 			// Regular payment with force customer enabled
-			return parent::process_payment( $order_id, $retry, true, $previous_error );
+			return parent::process_payment($order_id, $retry, true, $previous_error);
 		} else {
-			return parent::process_payment( $order_id, $retry, $force_save_source, $previous_error );
+			return parent::process_payment($order_id, $retry, $force_save_source, $previous_error);
 		}
 	}
 
@@ -175,8 +175,8 @@ 
 	 * @param $amount_to_charge float The amount to charge.
 	 * @param $renewal_order WC_Order A WC_Order object created to record the renewal payment.
 	 */
-	public function scheduled_subscription_payment( $amount_to_charge, $renewal_order ) {
-		$this->process_subscription_payment( $amount_to_charge, $renewal_order, true, false );
+	public function scheduled_subscription_payment($amount_to_charge, $renewal_order) {
+		$this->process_subscription_payment($amount_to_charge, $renewal_order, true, false);
 	}
 
 	/**
@@ -190,86 +190,86 @@ 
 	 * @param bool $retry Should we retry the process?
 	 * @param object $previous_error
 	 */
-	public function process_subscription_payment( $amount = 0.0, $renewal_order, $retry = true, $previous_error ) {
+	public function process_subscription_payment($amount = 0.0, $renewal_order, $retry = true, $previous_error) {
 		try {
-			if ( $amount * 100 < WC_Stripe_Helper::get_minimum_amount() ) {
+			if ($amount * 100 < WC_Stripe_Helper::get_minimum_amount()) {
 				/* translators: minimum amount */
-				return new WP_Error( 'stripe_error', sprintf( __( 'Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe' ), wc_price( WC_Stripe_Helper::get_minimum_amount() / 100 ) ) );
+				return new WP_Error('stripe_error', sprintf(__('Sorry, the minimum allowed order total is %1$s to use this payment method.', 'woocommerce-gateway-stripe'), wc_price(WC_Stripe_Helper::get_minimum_amount() / 100)));
 			}
 
-			$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $renewal_order->id : $renewal_order->get_id();
+			$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $renewal_order->id : $renewal_order->get_id();
 
 			// Get source from order
-			$prepared_source = $this->prepare_order_source( $renewal_order );
+			$prepared_source = $this->prepare_order_source($renewal_order);
 			$source_object   = $prepared_source->source_object;
 
-			if ( ! $prepared_source->customer ) {
-				return new WP_Error( 'stripe_error', __( 'Customer not found', 'woocommerce-gateway-stripe' ) );
+			if ( ! $prepared_source->customer) {
+				return new WP_Error('stripe_error', __('Customer not found', 'woocommerce-gateway-stripe'));
 			}
 
-			WC_Stripe_Logger::log( "Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}" );
+			WC_Stripe_Logger::log("Info: Begin processing subscription payment for order {$order_id} for the amount of {$amount}");
 
 			/* If we're doing a retry and source is chargeable, we need to pass
 			 * a different idempotency key and retry for success.
 			 */
-			if ( is_object( $source_object ) && empty( $source_object->error ) && $this->need_update_idempotency_key( $source_object, $previous_error ) ) {
-				add_filter( 'wc_stripe_idempotency_key', array( $this, 'change_idempotency_key' ), 10, 2 );
+			if (is_object($source_object) && empty($source_object->error) && $this->need_update_idempotency_key($source_object, $previous_error)) {
+				add_filter('wc_stripe_idempotency_key', array($this, 'change_idempotency_key'), 10, 2);
 			}
 
-			if ( ( $this->is_no_such_source_error( $previous_error ) || $this->is_no_linked_source_error( $previous_error ) ) && apply_filters( 'wc_stripe_use_default_customer_source', true ) ) {
+			if (($this->is_no_such_source_error($previous_error) || $this->is_no_linked_source_error($previous_error)) && apply_filters('wc_stripe_use_default_customer_source', true)) {
 				// Passing empty source will charge customer default.
 				$prepared_source->source = '';
 			}
 
-			$request            = $this->generate_payment_request( $renewal_order, $prepared_source );
+			$request            = $this->generate_payment_request($renewal_order, $prepared_source);
 			$request['capture'] = 'true';
-			$request['amount']  = WC_Stripe_Helper::get_stripe_amount( $amount, $request['currency'] );
-			$response           = WC_Stripe_API::request( $request );
+			$request['amount']  = WC_Stripe_Helper::get_stripe_amount($amount, $request['currency']);
+			$response           = WC_Stripe_API::request($request);
 
-			if ( ! empty( $response->error ) ) {
+			if ( ! empty($response->error)) {
 				// We want to retry.
-				if ( $this->is_retryable_error( $response->error ) ) {
-					if ( $retry ) {
+				if ($this->is_retryable_error($response->error)) {
+					if ($retry) {
 						// Don't do anymore retries after this.
-						if ( 5 <= $this->retry_interval ) {
-							return $this->process_subscription_payment( $amount, $renewal_order, false, $response->error );
+						if (5 <= $this->retry_interval) {
+							return $this->process_subscription_payment($amount, $renewal_order, false, $response->error);
 						}
 
-						sleep( $this->retry_interval );
+						sleep($this->retry_interval);
 
 						$this->retry_interval++;
 
-						return $this->process_subscription_payment( $amount, $renewal_order, true, $response->error );
+						return $this->process_subscription_payment($amount, $renewal_order, true, $response->error);
 					} else {
-						$localized_message = __( 'Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe' );
-						$renewal_order->add_order_note( $localized_message );
-						throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+						$localized_message = __('Sorry, we are unable to process your payment at this time. Please retry later.', 'woocommerce-gateway-stripe');
+						$renewal_order->add_order_note($localized_message);
+						throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 					}
 				}
 
 				$localized_messages = WC_Stripe_Helper::get_localized_messages();
 
-				if ( 'card_error' === $response->error->type ) {
-					$localized_message = isset( $localized_messages[ $response->error->code ] ) ? $localized_messages[ $response->error->code ] : $response->error->message;
+				if ('card_error' === $response->error->type) {
+					$localized_message = isset($localized_messages[$response->error->code]) ? $localized_messages[$response->error->code] : $response->error->message;
 				} else {
-					$localized_message = isset( $localized_messages[ $response->error->type ] ) ? $localized_messages[ $response->error->type ] : $response->error->message;
+					$localized_message = isset($localized_messages[$response->error->type]) ? $localized_messages[$response->error->type] : $response->error->message;
 				}
 
-				$renewal_order->add_order_note( $localized_message );
+				$renewal_order->add_order_note($localized_message);
 
-				throw new WC_Stripe_Exception( print_r( $response, true ), $localized_message );
+				throw new WC_Stripe_Exception(print_r($response, true), $localized_message);
 			}
 
-			do_action( 'wc_gateway_stripe_process_payment', $response, $renewal_order );
+			do_action('wc_gateway_stripe_process_payment', $response, $renewal_order);
 
-			$this->process_response( $response, $renewal_order );
-		} catch ( WC_Stripe_Exception $e ) {
-			WC_Stripe_Logger::log( 'Error: ' . $e->getMessage() );
+			$this->process_response($response, $renewal_order);
+		} catch (WC_Stripe_Exception $e) {
+			WC_Stripe_Logger::log('Error: ' . $e->getMessage());
 
-			do_action( 'wc_gateway_stripe_process_payment_error', $e, $renewal_order );
+			do_action('wc_gateway_stripe_process_payment_error', $e, $renewal_order);
 
 			/* translators: error message */
-			$renewal_order->update_status( 'failed' );
+			$renewal_order->update_status('failed');
 		}
 	}
 
@@ -279,24 +279,24 @@ 
 	 * @since 3.1.0
 	 * @version 4.0.0
 	 */
-	public function save_source_to_order( $order, $source ) {
-		parent::save_source_to_order( $order, $source );
+	public function save_source_to_order($order, $source) {
+		parent::save_source_to_order($order, $source);
 
-		$order_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $order->id : $order->get_id();
+		$order_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $order->id : $order->get_id();
 
 		// Also store it on the subscriptions being purchased or paid for in the order
-		if ( function_exists( 'wcs_order_contains_subscription' ) && wcs_order_contains_subscription( $order_id ) ) {
-			$subscriptions = wcs_get_subscriptions_for_order( $order_id );
-		} elseif ( function_exists( 'wcs_order_contains_renewal' ) && wcs_order_contains_renewal( $order_id ) ) {
-			$subscriptions = wcs_get_subscriptions_for_renewal_order( $order_id );
+		if (function_exists('wcs_order_contains_subscription') && wcs_order_contains_subscription($order_id)) {
+			$subscriptions = wcs_get_subscriptions_for_order($order_id);
+		} elseif (function_exists('wcs_order_contains_renewal') && wcs_order_contains_renewal($order_id)) {
+			$subscriptions = wcs_get_subscriptions_for_renewal_order($order_id);
 		} else {
 			$subscriptions = array();
 		}
 
-		foreach ( $subscriptions as $subscription ) {
-			$subscription_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->id : $subscription->get_id();
-			update_post_meta( $subscription_id, '_stripe_customer_id', $source->customer );
-			update_post_meta( $subscription_id, '_stripe_source_id', $source->source );
+		foreach ($subscriptions as $subscription) {
+			$subscription_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->id : $subscription->get_id();
+			update_post_meta($subscription_id, '_stripe_customer_id', $source->customer);
+			update_post_meta($subscription_id, '_stripe_source_id', $source->source);
 		}
 	}
 
@@ -304,26 +304,26 @@ 
 	 * Don't transfer Stripe customer/token meta to resubscribe orders.
 	 * @param int $resubscribe_order The order created for the customer to resubscribe to the old expired/cancelled subscription
 	 */
-	public function delete_resubscribe_meta( $resubscribe_order ) {
-		delete_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_customer_id' );
-		delete_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_source_id' );
+	public function delete_resubscribe_meta($resubscribe_order) {
+		delete_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_customer_id');
+		delete_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_source_id');
 		// For BW compat will remove in future
-		delete_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_card_id' );
+		delete_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_card_id');
 		// delete payment intent ID
-		delete_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $resubscribe_order->id : $resubscribe_order->get_id() ), '_stripe_intent_id' );
-		$this->delete_renewal_meta( $resubscribe_order );
+		delete_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $resubscribe_order->id : $resubscribe_order->get_id()), '_stripe_intent_id');
+		$this->delete_renewal_meta($resubscribe_order);
 	}
 
 	/**
 	 * Don't transfer Stripe fee/ID meta to renewal orders.
 	 * @param int $resubscribe_order The order created for the customer to resubscribe to the old expired/cancelled subscription
 	 */
-	public function delete_renewal_meta( $renewal_order ) {
-		WC_Stripe_Helper::delete_stripe_fee( $renewal_order );
-		WC_Stripe_Helper::delete_stripe_net( $renewal_order );
+	public function delete_renewal_meta($renewal_order) {
+		WC_Stripe_Helper::delete_stripe_fee($renewal_order);
+		WC_Stripe_Helper::delete_stripe_net($renewal_order);
 
 		// delete payment intent ID
-		delete_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $renewal_order->id : $renewal_order->get_id() ), '_stripe_intent_id' );
+		delete_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $renewal_order->id : $renewal_order->get_id()), '_stripe_intent_id');
 
 		return $renewal_order;
 	}
@@ -337,14 +337,14 @@ 
 	 * @param WC_Order $renewal_order The order which recorded the successful payment (to make up for the failed automatic payment).
 	 * @return void
 	 */
-	public function update_failing_payment_method( $subscription, $renewal_order ) {
-		if ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ) {
-			update_post_meta( $subscription->id, '_stripe_customer_id', $renewal_order->stripe_customer_id );
-			update_post_meta( $subscription->id, '_stripe_source_id', $renewal_order->stripe_source_id );
+	public function update_failing_payment_method($subscription, $renewal_order) {
+		if (WC_Stripe_Helper::is_wc_lt('3.0')) {
+			update_post_meta($subscription->id, '_stripe_customer_id', $renewal_order->stripe_customer_id);
+			update_post_meta($subscription->id, '_stripe_source_id', $renewal_order->stripe_source_id);
 
 		} else {
-			update_post_meta( $subscription->get_id(), '_stripe_customer_id', $renewal_order->get_meta( '_stripe_customer_id', true ) );
-			update_post_meta( $subscription->get_id(), '_stripe_source_id', $renewal_order->get_meta( '_stripe_source_id', true ) );
+			update_post_meta($subscription->get_id(), '_stripe_customer_id', $renewal_order->get_meta('_stripe_customer_id', true));
+			update_post_meta($subscription->get_id(), '_stripe_source_id', $renewal_order->get_meta('_stripe_source_id', true));
 		}
 	}
 
@@ -357,23 +357,23 @@ 
 	 * @param WC_Subscription $subscription An instance of a subscription object
 	 * @return array
 	 */
-	public function add_subscription_payment_meta( $payment_meta, $subscription ) {
-		$subscription_id = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->id : $subscription->get_id();
-		$source_id       = get_post_meta( $subscription_id, '_stripe_source_id', true );
+	public function add_subscription_payment_meta($payment_meta, $subscription) {
+		$subscription_id = WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->id : $subscription->get_id();
+		$source_id       = get_post_meta($subscription_id, '_stripe_source_id', true);
 
 		// For BW compat will remove in future.
-		if ( empty( $source_id ) ) {
-			$source_id = get_post_meta( $subscription_id, '_stripe_card_id', true );
+		if (empty($source_id)) {
+			$source_id = get_post_meta($subscription_id, '_stripe_card_id', true);
 
 			// Take this opportunity to update the key name.
-			update_post_meta( $subscription_id, '_stripe_source_id', $source_id );
-			delete_post_meta( $subscription_id, '_stripe_card_id', $source_id );
+			update_post_meta($subscription_id, '_stripe_source_id', $source_id);
+			delete_post_meta($subscription_id, '_stripe_card_id', $source_id);
 		}
 
-		$payment_meta[ $this->id ] = array(
+		$payment_meta[$this->id] = array(
 			'post_meta' => array(
 				'_stripe_customer_id' => array(
-					'value' => get_post_meta( $subscription_id, '_stripe_customer_id', true ),
+					'value' => get_post_meta($subscription_id, '_stripe_customer_id', true),
 					'label' => 'Stripe Customer ID',
 				),
 				'_stripe_source_id'   => array(
@@ -396,22 +396,22 @@ 
 	 * @param array $payment_meta associative array of meta data required for automatic payments
 	 * @return array
 	 */
-	public function validate_subscription_payment_meta( $payment_method_id, $payment_meta ) {
-		if ( $this->id === $payment_method_id ) {
+	public function validate_subscription_payment_meta($payment_method_id, $payment_meta) {
+		if ($this->id === $payment_method_id) {
 
-			if ( ! isset( $payment_meta['post_meta']['_stripe_customer_id']['value'] ) || empty( $payment_meta['post_meta']['_stripe_customer_id']['value'] ) ) {
-				throw new Exception( __( 'A "Stripe Customer ID" value is required.', 'woocommerce-gateway-stripe' ) );
-			} elseif ( 0 !== strpos( $payment_meta['post_meta']['_stripe_customer_id']['value'], 'cus_' ) ) {
-				throw new Exception( __( 'Invalid customer ID. A valid "Stripe Customer ID" must begin with "cus_".', 'woocommerce-gateway-stripe' ) );
+			if ( ! isset($payment_meta['post_meta']['_stripe_customer_id']['value']) || empty($payment_meta['post_meta']['_stripe_customer_id']['value'])) {
+				throw new Exception(__('A "Stripe Customer ID" value is required.', 'woocommerce-gateway-stripe'));
+			} elseif (0 !== strpos($payment_meta['post_meta']['_stripe_customer_id']['value'], 'cus_')) {
+				throw new Exception(__('Invalid customer ID. A valid "Stripe Customer ID" must begin with "cus_".', 'woocommerce-gateway-stripe'));
 			}
 
 			if (
-				( ! empty( $payment_meta['post_meta']['_stripe_source_id']['value'] )
-				&& 0 !== strpos( $payment_meta['post_meta']['_stripe_source_id']['value'], 'card_' ) )
-				&& ( ! empty( $payment_meta['post_meta']['_stripe_source_id']['value'] )
-				&& 0 !== strpos( $payment_meta['post_meta']['_stripe_source_id']['value'], 'src_' ) ) ) {
+				( ! empty($payment_meta['post_meta']['_stripe_source_id']['value'])
+				&& 0 !== strpos($payment_meta['post_meta']['_stripe_source_id']['value'], 'card_'))
+				&& ( ! empty($payment_meta['post_meta']['_stripe_source_id']['value'])
+				&& 0 !== strpos($payment_meta['post_meta']['_stripe_source_id']['value'], 'src_')) ) {
 
-				throw new Exception( __( 'Invalid source ID. A valid source "Stripe Source ID" must begin with "src_" or "card_".', 'woocommerce-gateway-stripe' ) );
+				throw new Exception(__('Invalid source ID. A valid source "Stripe Source ID" must begin with "src_" or "card_".', 'woocommerce-gateway-stripe'));
 			}
 		}
 	}
@@ -424,75 +424,75 @@ 
 	 * @param WC_Subscription $subscription the subscription details
 	 * @return string the subscription payment method
 	 */
-	public function maybe_render_subscription_payment_method( $payment_method_to_display, $subscription ) {
-		$customer_user = WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->customer_user : $subscription->get_customer_id();
+	public function maybe_render_subscription_payment_method($payment_method_to_display, $subscription) {
+		$customer_user = WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->customer_user : $subscription->get_customer_id();
 
 		// bail for other payment methods
-		if ( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->payment_method : $subscription->get_payment_method() ) !== $this->id || ! $customer_user ) {
+		if ((WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->payment_method : $subscription->get_payment_method()) !== $this->id || ! $customer_user) {
 			return $payment_method_to_display;
 		}
 
-		$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->id : $subscription->get_id() ), '_stripe_source_id', true );
+		$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->id : $subscription->get_id()), '_stripe_source_id', true);
 
 		// For BW compat will remove in future.
-		if ( empty( $stripe_source_id ) ) {
-			$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->id : $subscription->get_id() ), '_stripe_card_id', true );
+		if (empty($stripe_source_id)) {
+			$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->id : $subscription->get_id()), '_stripe_card_id', true);
 
 			// Take this opportunity to update the key name.
-			WC_Stripe_Helper::is_wc_lt( '3.0' ) ? update_post_meta( $subscription->id, '_stripe_source_id', $stripe_source_id ) : update_post_meta( $subscription->get_id(), '_stripe_source_id', $stripe_source_id );
+			WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($subscription->id, '_stripe_source_id', $stripe_source_id) : update_post_meta($subscription->get_id(), '_stripe_source_id', $stripe_source_id);
 		}
 
 		$stripe_customer    = new WC_Stripe_Customer();
-		$stripe_customer_id = get_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->id : $subscription->get_id() ), '_stripe_customer_id', true );
+		$stripe_customer_id = get_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->id : $subscription->get_id()), '_stripe_customer_id', true);
 
 		// If we couldn't find a Stripe customer linked to the subscription, fallback to the user meta data.
-		if ( ! $stripe_customer_id || ! is_string( $stripe_customer_id ) ) {
+		if ( ! $stripe_customer_id || ! is_string($stripe_customer_id)) {
 			$user_id            = $customer_user;
-			$stripe_customer_id = get_user_meta( $user_id, '_stripe_customer_id', true );
-			$stripe_source_id   = get_user_meta( $user_id, '_stripe_source_id', true );
+			$stripe_customer_id = get_user_meta($user_id, '_stripe_customer_id', true);
+			$stripe_source_id   = get_user_meta($user_id, '_stripe_source_id', true);
 
 			// For BW compat will remove in future.
-			if ( empty( $stripe_source_id ) ) {
-				$stripe_source_id = get_user_meta( $user_id, '_stripe_card_id', true );
+			if (empty($stripe_source_id)) {
+				$stripe_source_id = get_user_meta($user_id, '_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				update_user_meta( $user_id, '_stripe_source_id', $stripe_source_id );
+				update_user_meta($user_id, '_stripe_source_id', $stripe_source_id);
 			}
 		}
 
 		// If we couldn't find a Stripe customer linked to the account, fallback to the order meta data.
-		if ( ( ! $stripe_customer_id || ! is_string( $stripe_customer_id ) ) && false !== $subscription->order ) {
-			$stripe_customer_id = get_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_customer_id', true );
-			$stripe_source_id   = get_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_source_id', true );
+		if (( ! $stripe_customer_id || ! is_string($stripe_customer_id)) && false !== $subscription->order) {
+			$stripe_customer_id = get_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_customer_id', true);
+			$stripe_source_id   = get_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_source_id', true);
 
 			// For BW compat will remove in future.
-			if ( empty( $stripe_source_id ) ) {
-				$stripe_source_id = get_post_meta( ( WC_Stripe_Helper::is_wc_lt( '3.0' ) ? $subscription->order->id : $subscription->get_parent_id() ), '_stripe_card_id', true );
+			if (empty($stripe_source_id)) {
+				$stripe_source_id = get_post_meta((WC_Stripe_Helper::is_wc_lt('3.0') ? $subscription->order->id : $subscription->get_parent_id()), '_stripe_card_id', true);
 
 				// Take this opportunity to update the key name.
-				WC_Stripe_Helper::is_wc_lt( '3.0' ) ? update_post_meta( $subscription->order->id, '_stripe_source_id', $stripe_source_id ) : update_post_meta( $subscription->get_parent_id(), '_stripe_source_id', $stripe_source_id );
+				WC_Stripe_Helper::is_wc_lt('3.0') ? update_post_meta($subscription->order->id, '_stripe_source_id', $stripe_source_id) : update_post_meta($subscription->get_parent_id(), '_stripe_source_id', $stripe_source_id);
 			}
 		}
 
-		$stripe_customer->set_id( $stripe_customer_id );
+		$stripe_customer->set_id($stripe_customer_id);
 
 		$sources                   = $stripe_customer->get_sources();
-		$payment_method_to_display = __( 'N/A', 'woocommerce-gateway-stripe' );
+		$payment_method_to_display = __('N/A', 'woocommerce-gateway-stripe');
 
-		if ( $sources ) {
+		if ($sources) {
 			$card = false;
 
-			foreach ( $sources as $source ) {
-				if ( isset( $source->type ) && 'card' === $source->type ) {
+			foreach ($sources as $source) {
+				if (isset($source->type) && 'card' === $source->type) {
 					$card = $source->card;
-				} elseif ( isset( $source->object ) && 'card' === $source->object ) {
+				} elseif (isset($source->object) && 'card' === $source->object) {
 					$card = $source;
 				}
 
-				if ( $source->id === $stripe_source_id ) {
-					if ( $card ) {
+				if ($source->id === $stripe_source_id) {
+					if ($card) {
 						/* translators: 1) card brand 2) last 4 digits */
-						$payment_method_to_display = sprintf( __( 'Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe' ), ( isset( $card->brand ) ? $card->brand : __( 'N/A', 'woocommerce-gateway-stripe' ) ), $card->last4 );
+						$payment_method_to_display = sprintf(__('Via %1$s card ending in %2$s', 'woocommerce-gateway-stripe'), (isset($card->brand) ? $card->brand : __('N/A', 'woocommerce-gateway-stripe')), $card->last4);
 					}
 
 					break;