pronamic / wp-pronamic-ideal

admin/meta-box-gateway-config.php

Spacing +80 added lines, -80 removed lines

@@ -20,7 +20,7 @@ 
 }
 
 foreach ( $fields as $id => $field ) {
-	$section = $field['section'];
+	$section = $field[ 'section' ];
 
 	$sections_fields[ $section ][ $id ] = $field;
 }
@@ -50,10 +50,10 @@ 
 					<?php
 
 					foreach ( $pronamic_pay_providers as $provider ) {
-						if ( isset( $provider['integrations'] ) && is_array( $provider['integrations'] ) ) {
-							printf( '<optgroup label="%s">', esc_attr( $provider['name'] ) );
+						if ( isset( $provider[ 'integrations' ] ) && is_array( $provider[ 'integrations' ] ) ) {
+							printf( '<optgroup label="%s">', esc_attr( $provider[ 'name' ] ) );
 
-							foreach ( $provider['integrations'] as $integration ) {
+							foreach ( $provider[ 'integrations' ] as $integration ) {
 								$id          = $integration->get_id();
 								$name        = $integration->get_name();
 								$classes     = array();
@@ -61,7 +61,7 @@ 
 								$links       = array();
 
 								if ( isset( $integration->deprecated ) && $integration->deprecated ) {
-									$classes[] = 'deprecated';
+									$classes[ ] = 'deprecated';
 
 									$name = sprintf( __( '%s (obsoleted)', 'pronamic_ideal' ), $name );
 
@@ -74,23 +74,23 @@ 
 								$dashboards = $integration->get_dashboard_url();
 
 								if ( 1 === count( $dashboards ) ) {
-									$links[] = sprintf(
+									$links[ ] = sprintf(
 										'<a href="%s" title="%s">%2$s</a>',
-										esc_attr( $dashboards[0] ),
+										esc_attr( $dashboards[ 0 ] ),
 										__( 'Dashboard', 'pronamic_ideal' )
 									);
 								} elseif ( count( $dashboards ) > 1 ) {
 									$dashboard_urls = array();
 
 									foreach ( $dashboards as $dashboard_name => $dashboard_url ) {
-										$dashboard_urls[] = sprintf(
+										$dashboard_urls[ ] = sprintf(
 											'<a href="%s" title="%s">%2$s</a>',
 											esc_attr( $dashboard_url ),
 											esc_html( ucfirst( $dashboard_name ) )
 										);
 									}
 
-									$links[] = sprintf(
+									$links[ ] = sprintf(
 										'%s: %s',
 										__( 'Dashboards', 'pronamic_ideal' ),
 										strtolower( implode( ', ', $dashboard_urls ) )
@@ -99,7 +99,7 @@ 
 
 								// Product link.
 								if ( $integration->get_product_url() ) {
-									$links[] = sprintf(
+									$links[ ] = sprintf(
 										'<a href="%s" target="_blank" title="%s">%2$s</a>',
 										$integration->get_product_url(),
 										__( 'Product information', 'pronamic_ideal' )
@@ -139,34 +139,34 @@ 
 			<?php
 
 			$classes = array();
-			if ( isset( $section['methods'] ) ) {
-				$classes[] = 'pronamic-pay-tab';
-				$classes[] = 'pronamic-pay-cloack';
-				$classes[] = 'extra-settings';
+			if ( isset( $section[ 'methods' ] ) ) {
+				$classes[ ] = 'pronamic-pay-tab';
+				$classes[ ] = 'pronamic-pay-cloack';
+				$classes[ ] = 'extra-settings';
 
-				foreach ( $section['methods'] as $method ) {
-					$classes[] = 'setting-' . $method;
+				foreach ( $section[ 'methods' ] as $method ) {
+					$classes[ ] = 'setting-' . $method;
 				}
 			}
 
 			?>
 
 			<div class="<?php echo esc_attr( implode( ' ', $classes ) ); ?>">
-				<?php if ( ! empty( $section['title'] ) || ! empty( $section['description'] ) ) : ?>
+				<?php if ( ! empty( $section[ 'title' ] ) || ! empty( $section[ 'description' ] ) ) : ?>
 
 					<div class="pronamic-pay-tab-block gateway-config-section-header">
-						<?php if ( ! empty( $section['title'] ) ) : ?>
+						<?php if ( ! empty( $section[ 'title' ] ) ) : ?>
 
-							<h4 class="pronamic-pay-cloack"><?php echo esc_html( $section['title'] ); ?></h4>
+							<h4 class="pronamic-pay-cloack"><?php echo esc_html( $section[ 'title' ] ); ?></h4>
 
 						<?php endif; ?>
 
-						<?php if ( ! empty( $section['description'] ) ) : ?>
+						<?php if ( ! empty( $section[ 'description' ] ) ) : ?>
 
 							<p>
 								<?php
 
-								echo $section['description']; // WPCS: XSS ok.
+								echo $section[ 'description' ]; // WPCS: XSS ok.
 
 								?>
 							</p>
@@ -183,23 +183,23 @@ 
 					foreach ( $sections_fields[ $id ] as $field ) :
 
 						$classes = array();
-						if ( isset( $field['methods'] ) ) {
-							$classes[] = 'pronamic-pay-cloack';
-							$classes[] = 'extra-settings';
+						if ( isset( $field[ 'methods' ] ) ) {
+							$classes[ ] = 'pronamic-pay-cloack';
+							$classes[ ] = 'extra-settings';
 
-							foreach ( $field['methods'] as $method ) {
-								$classes[] = 'setting-' . $method;
+							foreach ( $field[ 'methods' ] as $method ) {
+								$classes[ ] = 'setting-' . $method;
 							}
 						}
 
-						if ( isset( $field['group'] ) ) {
-							$classes[] = $field['group'];
+						if ( isset( $field[ 'group' ] ) ) {
+							$classes[ ] = $field[ 'group' ];
 						}
 
-						if ( isset( $field['id'] ) ) {
-							$id = $field['id'];
-						} elseif ( isset( $field['meta_key'] ) ) {
-							$id = $field['meta_key'];
+						if ( isset( $field[ 'id' ] ) ) {
+							$id = $field[ 'id' ];
+						} elseif ( isset( $field[ 'meta_key' ] ) ) {
+							$id = $field[ 'meta_key' ];
 						} else {
 							$id = uniqid();
 						}
@@ -207,19 +207,19 @@ 
 						?>
 						<tr class="<?php echo esc_attr( implode( ' ', $classes ) ); ?>">
 
-							<?php if ( 'html' !== $field['type'] ) { ?>
+							<?php if ( 'html' !== $field[ 'type' ] ) { ?>
 
 							<th scope="row">
 								<label for="<?php echo esc_attr( $id ); ?>">
-									<?php echo esc_html( $field['title'] ); ?>
+									<?php echo esc_html( $field[ 'title' ] ); ?>
 								</label>
 
 								<?php
 
-								if ( isset( $field['tooltip'] ) && ! empty( $field['tooltip'] ) ) {
+								if ( isset( $field[ 'tooltip' ] ) && ! empty( $field[ 'tooltip' ] ) ) {
 									printf(
 										'<span class="dashicons dashicons-editor-help pronamic-pay-tip" title="%s"></span>',
-										esc_attr( $field['tooltip'] )
+										esc_attr( $field[ 'tooltip' ] )
 									);
 								}
 
@@ -228,59 +228,59 @@ 
 
 							<?php } ?>
 
-							<td <?php if ( 'html' === $field['type'] ) : ?>colspan="2"<?php endif; ?>>
+							<td <?php if ( 'html' === $field[ 'type' ] ) : ?>colspan="2"<?php endif; ?>>
 								<?php
 
 								$attributes         = array();
-								$attributes['id']   = $id;
-								$attributes['name'] = $id;
+								$attributes[ 'id' ]   = $id;
+								$attributes[ 'name' ] = $id;
 
 								$classes = array();
-								if ( isset( $field['classes'] ) ) {
-									$classes = $field['classes'];
+								if ( isset( $field[ 'classes' ] ) ) {
+									$classes = $field[ 'classes' ];
 								}
 
-								if ( isset( $field['readonly'] ) && $field['readonly'] ) {
-									$attributes['readonly'] = 'readonly';
+								if ( isset( $field[ 'readonly' ] ) && $field[ 'readonly' ] ) {
+									$attributes[ 'readonly' ] = 'readonly';
 
-									$classes[] = 'readonly';
+									$classes[ ] = 'readonly';
 								}
 
-								if ( isset( $field['size'] ) ) {
-									$attributes['size'] = $field['size'];
+								if ( isset( $field[ 'size' ] ) ) {
+									$attributes[ 'size' ] = $field[ 'size' ];
 								}
 
-								if ( in_array( $field['type'], array( 'text', 'password', 'textarea', 'select' ), true ) ) {
-									$classes[] = 'pronamic-pay-form-control';
+								if ( in_array( $field[ 'type' ], array( 'text', 'password', 'textarea', 'select' ), true ) ) {
+									$classes[ ] = 'pronamic-pay-form-control';
 								}
 
-								if ( in_array( $field['type'], array( 'textarea' ), true ) ) {
-									$classes[] = 'pronamic-pay-form-control-lg';
+								if ( in_array( $field[ 'type' ], array( 'textarea' ), true ) ) {
+									$classes[ ] = 'pronamic-pay-form-control-lg';
 								}
 
 								if ( ! empty( $classes ) ) {
-									$attributes['class'] = implode( ' ', $classes );
+									$attributes[ 'class' ] = implode( ' ', $classes );
 								}
 
 								$value = '';
-								if ( isset( $field['meta_key'] ) ) {
-									$attributes['name'] = $field['meta_key'];
+								if ( isset( $field[ 'meta_key' ] ) ) {
+									$attributes[ 'name' ] = $field[ 'meta_key' ];
 
-									$value = get_post_meta( get_the_ID(), $field['meta_key'], true );
-								} elseif ( isset( $field['value'] ) ) {
-									$value = $field['value'];
+									$value = get_post_meta( get_the_ID(), $field[ 'meta_key' ], true );
+								} elseif ( isset( $field[ 'value' ] ) ) {
+									$value = $field[ 'value' ];
 								}
 
 								// Set default.
-								if ( empty( $value ) && isset( $field['default'] ) ) {
-									$value = $field['default'];
+								if ( empty( $value ) && isset( $field[ 'default' ] ) ) {
+									$value = $field[ 'default' ];
 								}
 
-								switch ( $field['type'] ) {
+								switch ( $field[ 'type' ] ) {
 									case 'text':
 									case 'password':
-										$attributes['type']  = $field['type'];
-										$attributes['value'] = $value;
+										$attributes[ 'type' ]  = $field[ 'type' ];
+										$attributes[ 'value' ] = $value;
 
 										printf(
 											'<input %s />',
@@ -291,8 +291,8 @@ 
 
 										break;
 									case 'checkbox':
-										$attributes['type']  = $field['type'];
-										$attributes['value'] = '1';
+										$attributes[ 'type' ]  = $field[ 'type' ];
+										$attributes[ 'value' ] = '1';
 
 										printf(
 											'<input %s %s />',
@@ -306,14 +306,14 @@ 
 
 										printf(
 											'<label for="%s">%s</label>',
-											esc_attr( $attributes['id'] ),
-											esc_html( $field['label'] )
+											esc_attr( $attributes[ 'id' ] ),
+											esc_html( $field[ 'label' ] )
 										);
 
 										break;
 									case 'textarea':
-										$attributes['rows'] = 4;
-										$attributes['cols'] = 65;
+										$attributes[ 'rows' ] = 4;
+										$attributes[ 'cols' ] = 65;
 
 										printf(
 											'<textarea %s />%s</textarea>',
@@ -325,7 +325,7 @@ 
 
 										break;
 									case 'file':
-										$attributes['type'] = 'file';
+										$attributes[ 'type' ] = 'file';
 
 										printf(
 											'<input %s />',
@@ -340,22 +340,22 @@ 
 											'<select %s>%s</select>',
 											// @codingStandardsIgnoreStart
 											Util::array_to_html_attributes( $attributes ),
-											Util::select_options_grouped( $field['options'], $value )
+											Util::select_options_grouped( $field[ 'options' ], $value )
 											// @codingStandardsIgnoreEnd
 										);
 
 										break;
 									case 'optgroup':
 										printf( '<fieldset>' );
-										printf( '<legend class="screen-reader-text">%s</legend>', esc_html( $field['title'] ) );
+										printf( '<legend class="screen-reader-text">%s</legend>', esc_html( $field[ 'title' ] ) );
 
-										foreach ( $field['options'] as $key => $label ) {
+										foreach ( $field[ 'options' ] as $key => $label ) {
 											printf(
 												'<label>%s %s</label><br />',
 												sprintf(
 													'<input type="radio" value="%s" name="%s" %s />',
 													esc_attr( $key ),
-													esc_attr( $attributes['name'] ),
+													esc_attr( $attributes[ 'name' ] ),
 													checked( $value, $key, false )
 												),
 												esc_html( $label )
@@ -365,26 +365,26 @@ 
 										break;
 								}
 
-								if ( isset( $field['html'] ) ) {
-									if ( 'description' !== $field['type'] && isset( $field['title'] ) && ! empty( $field['title'] ) ) {
+								if ( isset( $field[ 'html' ] ) ) {
+									if ( 'description' !== $field[ 'type' ] && isset( $field[ 'title' ] ) && ! empty( $field[ 'title' ] ) ) {
 										printf(
 											'<strong>%s</strong><br>',
-											esc_html( $field['title'] )
+											esc_html( $field[ 'title' ] )
 										);
 									}
 
-									echo $field['html']; // WPCS: XSS ok.
+									echo $field[ 'html' ]; // WPCS: XSS ok.
 								}
 
-								if ( isset( $field['description'] ) ) {
+								if ( isset( $field[ 'description' ] ) ) {
 									printf( // WPCS: XSS ok.
 										'<p class="pronamic-pay-description description">%s</p>',
-										$field['description']
+										$field[ 'description' ]
 									);
 								}
 
-								if ( isset( $field['callback'] ) ) {
-									$callback = $field['callback'];
+								if ( isset( $field[ 'callback' ] ) ) {
+									$callback = $field[ 'callback' ];
 
 									call_user_func( $callback, $field );
 								}

admin/meta-box-gateway-test.php

Spacing +3 added lines, -3 removed lines

@@ -52,7 +52,7 @@ 
 }
 
 if ( $gateway->has_error() ) {
-	$pronamic_ideal_errors[] = $gateway->get_error();
+	$pronamic_ideal_errors[ ] = $gateway->get_error();
 }
 
 require Plugin::$dirname . '/views/errors.php';
@@ -87,12 +87,12 @@ 
 
 		<tr class="pronamic-pay-cloack pronamic-pay-test-payment-method <?php echo esc_attr( $method ); ?>">
 			<th scope="row">
-				<?php echo esc_html( $input['label'] ); ?>
+				<?php echo esc_html( $input[ 'label' ] ); ?>
 			</th>
 			<td>
 				<?php
 
-				echo $input['html']; // WPCS: XSS ok.
+				echo $input[ 'html' ]; // WPCS: XSS ok.
 
 				?>
 			</td>

classes/Payments/PaymentsModule.php

Spacing +2 added lines, -2 removed lines

@@ -66,11 +66,11 @@
 	 * @return array
 	 */
 	public function exclude_payment_comment_notes( $clauses, $query ) {
-		$type = $query->query_vars['type'];
+		$type = $query->query_vars[ 'type' ];
 
 		// Ignore payment notes comments if it's not specifically requested.
 		if ( 'payment_note' !== $type ) {
-			$clauses['where'] .= " AND comment_type != 'payment_note'";
+			$clauses[ 'where' ] .= " AND comment_type != 'payment_note'";
 		}
 
 		return $clauses;

classes/Payments/PaymentsDataStoreCPT.php

Spacing +1 added lines, -1 removed lines

@@ -115,7 +115,7 @@
 		$post_status = $this->get_post_status( $payment->status );
 
 		if ( ! empty( $post_status ) ) {
-			$data['post_status'] = $post_status;
+			$data[ 'post_status' ] = $post_status;
 		}
 
 		wp_update_post( $data );

classes/Admin/AdminSubscriptionPostType.php

Spacing +5 added lines, -5 removed lines

@@ -54,10 +54,10 @@ 
 		$screen = get_current_screen();
 
 		if ( self::POST_TYPE === $screen->post_type ) {
-			if ( ! isset( $vars['post_status'] ) ) {
-				$vars['post_status'] = array_keys( \Pronamic\WordPress\Pay\Plugin::get_subscription_states() );
+			if ( ! isset( $vars[ 'post_status' ] ) ) {
+				$vars[ 'post_status' ] = array_keys( \Pronamic\WordPress\Pay\Plugin::get_subscription_states() );
 
-				$vars['post_status'][] = 'publish';
+				$vars[ 'post_status' ][ ] = 'publish';
 			}
 		}
 
@@ -95,8 +95,8 @@ 
 	 * @return array
 	 */
 	public function sortable_columns( $sortable_columns ) {
-		$sortable_columns['pronamic_subscription_title'] = 'ID';
-		$sortable_columns['pronamic_subscription_date']  = 'date';
+		$sortable_columns[ 'pronamic_subscription_title' ] = 'ID';
+		$sortable_columns[ 'pronamic_subscription_date' ]  = 'date';
 
 		return $sortable_columns;
 	}

classes/Admin/GatewaySettings.php

Spacing +3 added lines, -3 removed lines

@@ -39,7 +39,7 @@ 
 		$classes = apply_filters( 'pronamic_pay_gateway_settings', array() );
 
 		foreach ( $classes as $class ) {
-			$this->settings[] = new $class();
+			$this->settings[ ] = new $class();
 		}
 	}
 
@@ -65,7 +65,7 @@ 
 			$gateway_id = get_post_meta( $config_id, '_pronamic_gateway_id', true );
 
 			// Payment methods.
-			$sections['payment_methods'] = array(
+			$sections[ 'payment_methods' ] = array(
 				'title'       => __( 'Payment Methods', 'pronamic_ideal' ),
 				'methods'     => array(
 					$gateway_id,
@@ -106,7 +106,7 @@ 
 		);
 
 		// Payment methods.
-		$fields[] = array(
+		$fields[ ] = array(
 			'section'  => 'payment_methods',
 			'type'     => 'html',
 			'callback' => array( $this, 'gateway_payment_methods' ),

classes/Admin/AdminPaymentPostType.php

Spacing +14 added lines, -14 removed lines

@@ -76,10 +76,10 @@ 
 		$screen = get_current_screen();
 
 		if ( self::POST_TYPE === $screen->post_type ) {
-			if ( ! isset( $vars['post_status'] ) ) {
-				$vars['post_status'] = array_keys( \Pronamic\WordPress\Pay\Plugin::get_payment_states() );
+			if ( ! isset( $vars[ 'post_status' ] ) ) {
+				$vars[ 'post_status' ] = array_keys( \Pronamic\WordPress\Pay\Plugin::get_payment_states() );
 
-				$vars['post_status'][] = 'publish';
+				$vars[ 'post_status' ][ ] = 'publish';
 			}
 		}
 
@@ -109,7 +109,7 @@ 
 
 			\Pronamic\WordPress\Pay\Plugin::update_payment( $payment, false );
 
-			$this->admin_notices[] = array(
+			$this->admin_notices[ ] = array(
 				'type'    => 'info',
 				'message' => __( 'Payment status updated.', 'pronamic_ideal' ),
 			);
@@ -123,8 +123,8 @@ 
 		foreach ( $this->admin_notices as $notice ) {
 			printf(
 				'<div class="notice notice-%1$s"><p>%2$s</p></div>',
-				esc_attr( $notice['type'] ),
-				esc_html( $notice['message'] )
+				esc_attr( $notice[ 'type' ] ),
+				esc_html( $notice[ 'message' ] )
 			);
 		}
 	}
@@ -179,8 +179,8 @@ 
 	 * @return array
 	 */
 	public function default_hidden_columns( $hidden ) {
-		$hidden[] = 'pronamic_payment_gateway';
-		$hidden[] = 'pronamic_payment_description';
+		$hidden[ ] = 'pronamic_payment_gateway';
+		$hidden[ ] = 'pronamic_payment_description';
 
 		return $hidden;
 	}
@@ -192,9 +192,9 @@ 
 	 * @return array
 	 */
 	public function sortable_columns( $sortable_columns ) {
-		$sortable_columns['pronamic_payment_title']  = 'ID';
-		$sortable_columns['pronamic_payment_amount'] = 'pronamic_payment_amount';
-		$sortable_columns['pronamic_payment_date']   = 'date';
+		$sortable_columns[ 'pronamic_payment_title' ]  = 'ID';
+		$sortable_columns[ 'pronamic_payment_amount' ] = 'pronamic_payment_amount';
+		$sortable_columns[ 'pronamic_payment_date' ]   = 'date';
 
 		return $sortable_columns;
 	}
@@ -532,14 +532,14 @@ 
 			0  => '', // Unused. Messages start at index 1.
 			1  => __( 'Payment updated.', 'pronamic_ideal' ),
 			// @see https://translate.wordpress.org/projects/wp/4.4.x/admin/nl/default?filters[status]=either&filters[original_id]=2352799&filters[translation_id]=37947229.
-			2  => $messages['post'][2],
+			2  => $messages[ 'post' ][ 2 ],
 			// @see https://translate.wordpress.org/projects/wp/4.4.x/admin/nl/default?filters[status]=either&filters[original_id]=2352800&filters[translation_id]=37947870.
-			3  => $messages['post'][3],
+			3  => $messages[ 'post' ][ 3 ],
 			// @see https://translate.wordpress.org/projects/wp/4.4.x/admin/nl/default?filters[status]=either&filters[original_id]=2352798&filters[translation_id]=37947230.
 			4  => __( 'Payment updated.', 'pronamic_ideal' ),
 			// @see https://translate.wordpress.org/projects/wp/4.4.x/admin/nl/default?filters[status]=either&filters[original_id]=2352801&filters[translation_id]=37947231.
 			// translators: %s: date and time of the revision
-			5  => isset( $_GET['revision'] ) ? sprintf( __( 'Payment restored to revision from %s.', 'pronamic_ideal' ), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false, // WPCS: CSRF ok.
+			5  => isset( $_GET[ 'revision' ] ) ? sprintf( __( 'Payment restored to revision from %s.', 'pronamic_ideal' ), wp_post_revision_title( (int) $_GET[ 'revision' ], false ) ) : false, // WPCS: CSRF ok.
 			// @see https://translate.wordpress.org/projects/wp/4.4.x/admin/nl/default?filters[status]=either&filters[original_id]=2352802&filters[translation_id]=37949178.
 			6  => __( 'Payment published.', 'pronamic_ideal' ),
 			// @see https://translate.wordpress.org/projects/wp/4.4.x/admin/nl/default?filters[status]=either&filters[original_id]=2352803&filters[translation_id]=37947232.

classes/Admin/AdminPaymentBulkActions.php

Spacing +3 added lines, -3 removed lines

@@ -61,10 +61,10 @@ 
 	 */
 	public function bulk_actions( $bulk_actions ) {
 		// Don't allow edit in bulk.
-		unset( $bulk_actions['edit'] );
+		unset( $bulk_actions[ 'edit' ] );
 
 		// Bulk check payment status.
-		$bulk_actions['pronamic_payment_check_status'] = __( 'Check Payment Status', 'pronamic_ideal' );
+		$bulk_actions[ 'pronamic_payment_check_status' ] = __( 'Check Payment Status', 'pronamic_ideal' );
 
 		return $bulk_actions;
 	}
@@ -106,7 +106,7 @@ 
 				$gateways[ $config_id ] = \Pronamic\WordPress\Pay\Plugin::get_gateway( $config_id );
 
 				if ( $gateways[ $config_id ] && ! $gateways[ $config_id ]->supports( 'payment_status_request' ) ) {
-					$unsupported_gateways[] = $config_id;
+					$unsupported_gateways[ ] = $config_id;
 				}
 			}
 

classes/Plugin.php

Spacing +3 added lines, -3 removed lines

@@ -476,7 +476,7 @@ 
 		);
 
 		if ( $payment_method ) {
-			$args['post__in'] = PaymentMethods::get_config_ids( $payment_method );
+			$args[ 'post__in' ] = PaymentMethods::get_config_ids( $payment_method );
 		}
 
 		$query = new WP_Query( $args );
@@ -687,10 +687,10 @@ 
 		$payment->set_credit_card( $data->get_credit_card() );
 
 		// User Agent (@see https://github.com/WordPress/WordPress/blob/4.9.4/wp-includes/comment.php#L1962-L1965).
-		$payment->user_agent = isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : null;
+		$payment->user_agent = isset( $_SERVER[ 'HTTP_USER_AGENT' ] ) ? $_SERVER[ 'HTTP_USER_AGENT' ] : null;
 
 		// IP (@see https://github.com/WordPress/WordPress/blob/4.9.4/wp-includes/comment.php#L1957-L1960).
-		$payment->user_ip = isset( $_SERVER['REMOTE_ADDR'] ) ? $_SERVER['REMOTE_ADDR'] : null;
+		$payment->user_ip = isset( $_SERVER[ 'REMOTE_ADDR' ] ) ? $_SERVER[ 'REMOTE_ADDR' ] : null;
 
 		return self::start_payment( $payment, $gateway );
 	}