WordPress.PHP.YodaConditions.NotYoda

includes/admin/class-wc-admin-post-types.php

@@ -710,7 +710,7 @@ class WC_Admin_Post_Types {
 
 					$latest_note = current( $latest_notes );
 
-					if ( isset( $latest_note->comment_content ) && $post->comment_count == 1 ) {
+					if ( isset( $latest_note->comment_content ) && 1 == $post->comment_count ) {
 						echo '<span class="note-on tips" data-tip="' . wc_sanitize_tooltip( $latest_note->comment_content ) . '">' . __( 'Yes', 'woocommerce' ) . '</span>';
 					} elseif ( isset( $latest_note->comment_content ) ) {
 						echo '<span class="note-on tips" data-tip="' . wc_sanitize_tooltip( $latest_note->comment_content . '<br/><small style="display:block">' . sprintf( _n( 'plus %d other note', 'plus %d other notes', ( $post->comment_count - 1 ), 'woocommerce' ), $post->comment_count - 1 ) . '</small>' ) . '">' . __( 'Yes', 'woocommerce' ) . '</span>';
@@ -931,7 +931,7 @@ class WC_Admin_Post_Types {
 			return $views;
 		}
 
-		$class            = ( isset( $wp_query->query['orderby'] ) && $wp_query->query['orderby'] == 'menu_order title' ) ? 'current' : '';
+		$class            = ( isset( $wp_query->query['orderby'] ) && 'menu_order title' === $wp_query->query['orderby'] ) ? 'current' : '';
 		$query_string     = remove_query_arg( array( 'orderby', 'order' ) );
 		$query_string     = add_query_arg( 'orderby', urlencode( 'menu_order title' ), $query_string );
 		$query_string     = add_query_arg( 'order', urlencode( 'ASC' ), $query_string );
@@ -1111,13 +1111,13 @@ class WC_Admin_Post_Types {
 		if ( $product->is_type( 'simple' ) || $product->is_type( 'external' ) ) {
 
 			if ( isset( $_REQUEST['_regular_price'] ) ) {
-				$new_regular_price = $_REQUEST['_regular_price'] === '' ? '' : wc_format_decimal( $_REQUEST['_regular_price'] );
+				$new_regular_price = ( '' === $_REQUEST['_regular_price'] ) ? '' : wc_format_decimal( $_REQUEST['_regular_price'] );
 				update_post_meta( $post_id, '_regular_price', $new_regular_price );
 			} else {
 				$new_regular_price = null;
 			}
 			if ( isset( $_REQUEST['_sale_price'] ) ) {
-				$new_sale_price = $_REQUEST['_sale_price'] === '' ? '' : wc_format_decimal( $_REQUEST['_sale_price'] );
+				$new_sale_price = ( '' === $_REQUEST['_sale_price'] ) ? '' : wc_format_decimal( $_REQUEST['_sale_price'] );
 				update_post_meta( $post_id, '_sale_price', $new_sale_price );
 			} else {
 				$new_sale_price = null;
@@ -1136,7 +1136,7 @@ class WC_Admin_Post_Types {
 				update_post_meta( $post_id, '_sale_price_dates_from', '' );
 				update_post_meta( $post_id, '_sale_price_dates_to', '' );
 
-				if ( ! is_null( $new_sale_price ) && $new_sale_price !== '' ) {
+				if ( ! is_null( $new_sale_price ) && '' !== $new_sale_price ) {
 					update_post_meta( $post_id, '_price', $new_sale_price );
 				} else {
 					update_post_meta( $post_id, '_price', $new_regular_price );
@@ -1254,7 +1254,7 @@ class WC_Admin_Post_Types {
 
 		// Sold Individually
 		if ( ! empty( $_REQUEST['_sold_individually'] ) ) {
-			if ( $_REQUEST['_sold_individually'] == 'yes' ) {
+			if ( 'yes' === $_REQUEST['_sold_individually'] ) {
 				update_post_meta( $post_id, '_sold_individually', 'yes' );
 			} else {
 				update_post_meta( $post_id, '_sold_individually', '' );
@@ -1386,7 +1386,7 @@ class WC_Admin_Post_Types {
 
 			if ( ! empty( $_REQUEST['_manage_stock'] ) ) {
 
-				if ( $_REQUEST['_manage_stock'] == 'yes' ) {
+				if ( 'yes' === $_REQUEST['_manage_stock'] ) {
 					update_post_meta( $post_id, '_manage_stock', 'yes' );
 				} else {
 					update_post_meta( $post_id, '_manage_stock', 'no' );
@@ -1506,7 +1506,7 @@ class WC_Admin_Post_Types {
 	public function shop_order_search_custom_fields( $wp ) {
 		global $pagenow;
 
-		if ( 'edit.php' != $pagenow || empty( $wp->query_vars['s'] ) || $wp->query_vars['post_type'] != 'shop_order' ) {
+		if ( 'edit.php' != $pagenow || empty( $wp->query_vars['s'] ) || 'shop_order' !== $wp->query_vars['post_type'] ) {
 			return;
 		}
 
@@ -1537,7 +1537,7 @@ class WC_Admin_Post_Types {
 			return $query;
 		}
 
-		if ( $typenow != 'shop_order' ) {
+		if ( 'shop_order' !== $typenow ) {
 			return $query;
 		}
 

includes/admin/importers/class-wc-tax-rate-importer.php

@@ -112,7 +112,7 @@ class WC_Tax_Rate_Importer extends WP_Importer {
 	 * @return string
 	 */
 	public function format_data_from_csv( $data, $enc ) {
-		return ( $enc == 'UTF-8' ) ? $data : utf8_encode( $data );
+		return ( 'UTF-8' === $enc ) ? $data : utf8_encode( $data );
 	}
 
 	/**

includes/admin/meta-boxes/class-wc-meta-box-order-data.php

@@ -302,7 +302,7 @@ class WC_Meta_Box_Order_Data {
 										$found_method 	= false;
 
 										foreach ( $payment_gateways as $gateway ) {
-											if ( $gateway->enabled == "yes" ) {
+											if ( 'yes' === $gateway->enabled ) {
 												echo '<option value="' . esc_attr( $gateway->id ) . '" ' . selected( $payment_method, $gateway->id, false ) . '>' . esc_html( $gateway->get_title() ) . '</option>';
 												if ( $payment_method == $gateway->id ) {
 													$found_method = true;

includes/admin/meta-boxes/class-wc-meta-box-order-notes.php

@@ -47,7 +47,7 @@ class WC_Meta_Box_Order_Notes {
 
 				$note_classes   = array( 'note' );
 				$note_classes[] = get_comment_meta( $note->comment_ID, 'is_customer_note', true ) ? 'customer-note' : '';
-				$note_classes[] = $note->comment_author === __( 'WooCommerce', 'woocommerce' ) ? 'system-note' : '';
+				$note_classes[] = ( __( 'WooCommerce', 'woocommerce' ) === $note->comment_author ) ? 'system-note' : '';
 				$note_classes   = apply_filters( 'woocommerce_order_note_class', array_filter( $note_classes ), $note );
 				?>
 				<li rel="<?php echo absint( $note->comment_ID ); ?>" class="<?php echo esc_attr( implode( ' ', $note_classes ) ); ?>">
@@ -56,7 +56,9 @@ class WC_Meta_Box_Order_Notes {
 					</div>
 					<p class="meta">
 						<abbr class="exact-date" title="<?php echo $note->comment_date; ?>"><?php printf( __( 'added on %1$s at %2$s', 'woocommerce' ), date_i18n( wc_date_format(), strtotime( $note->comment_date ) ), date_i18n( wc_time_format(), strtotime( $note->comment_date ) ) ); ?></abbr>
-						<?php if ( $note->comment_author !== __( 'WooCommerce', 'woocommerce' ) ) printf( ' ' . __( 'by %s', 'woocommerce' ), $note->comment_author ); ?>
+						<?php if ( __( 'WooCommerce', 'woocommerce' ) !== $note->comment_author ) : ?>
+							<?php printf( ' ' . __( 'by %s', 'woocommerce' ), $note->comment_author ); ?>
+						<?php endif; ?>
 						<a href="#" class="delete_note"><?php _e( 'Delete note', 'woocommerce' ); ?></a>
 					</p>
 				</li>

includes/admin/meta-boxes/class-wc-meta-box-product-data.php

@@ -865,7 +865,7 @@ class WC_Meta_Box_Product_Data {
 		}
 
 		// Save shipping class
-		$product_shipping_class = $_POST['product_shipping_class'] > 0 && $product_type != 'external' ? absint( $_POST['product_shipping_class'] ) : '';
+		$product_shipping_class = ( $_POST['product_shipping_class'] > 0 && 'external' !== $product_type ) ? absint( $_POST['product_shipping_class'] ) : '';
 		wp_set_object_terms( $post_id, $product_shipping_class, 'product_shipping_class' );
 
 		// Unique SKU
@@ -1422,7 +1422,7 @@ class WC_Meta_Box_Product_Data {
 				// Price handling
 				_wc_save_product_price( $variation_id, $variable_regular_price[ $i ], $variable_sale_price[ $i ], $variable_sale_price_dates_from[ $i ], $variable_sale_price_dates_to[ $i ] );
 
-				if ( isset( $variable_tax_class[ $i ] ) && $variable_tax_class[ $i ] !== 'parent' ) {
+				if ( isset( $variable_tax_class[ $i ] ) && 'parent' !== $variable_tax_class[ $i ] ) {
 					update_post_meta( $variation_id, '_tax_class', wc_clean( $variable_tax_class[ $i ] ) );
 				} else {
 					delete_post_meta( $variation_id, '_tax_class' );

includes/admin/reports/class-wc-admin-report.php

@@ -259,7 +259,7 @@ class WC_Admin_Report {
 						$query['where'] .= ' ' . $relation;
 					}
 
-					if ( isset( $value['type'] ) && $value['type'] == 'order_item_meta' ) {
+					if ( isset( $value['type'] ) && 'order_item_meta' === $value['type'] ) {
 
 						if ( is_array( $value['meta_key'] ) ) {
 							$query['where'] .= " ( order_item_meta_{$key}.meta_key   IN ('" . implode( "','", $value['meta_key'] ) . "')";
@@ -408,7 +408,7 @@ class WC_Admin_Report {
 	public function sales_sparkline( $id = '', $days = 7, $type = 'sales' ) {
 
 		if ( $id ) {
-			$meta_key = $type == 'sales' ? '_line_total' : '_qty';
+			$meta_key = ( 'sales' === $type ) ? '_line_total' : '_qty';
 
 			$data = $this->get_order_report_data( array(
 				'data' => array(
@@ -479,7 +479,7 @@ class WC_Admin_Report {
 			$total += $d->sparkline_value;
 		}
 
-		if ( $type == 'sales' ) {
+		if ( 'sales' === $type ) {
 			$tooltip = sprintf( __( 'Sold %1$s worth in the last %2$d days', 'woocommerce' ), strip_tags( wc_price( $total ) ), $days );
 		} else {
 			$tooltip = sprintf( _n( 'Sold 1 item in the last %2$d days', 'Sold %1$d items in the last %2$d days', $total, 'woocommerce' ), $total, $days );
@@ -487,7 +487,7 @@ class WC_Admin_Report {
 
 		$sparkline_data = array_values( $this->prepare_chart_data( $data, 'post_date', 'sparkline_value', $days - 1, strtotime( 'midnight -' . ( $days - 1 ) . ' days', current_time( 'timestamp' ) ), 'day' ) );
 
-		return '<span class="wc_sparkline ' . ( $type == 'sales' ? 'lines' : 'bars' ) . ' tips" data-color="#777" data-tip="' . esc_attr( $tooltip ) . '" data-barwidth="' . 60 * 60 * 16 * 1000 . '" data-sparkline="' . esc_attr( json_encode( $sparkline_data ) ) . '"></span>';
+		return '<span class="wc_sparkline ' . ( ( 'sales' === $type ) ? 'lines' : 'bars' ) . ' tips" data-color="#777" data-tip="' . esc_attr( $tooltip ) . '" data-barwidth="' . 60 * 60 * 16 * 1000 . '" data-sparkline="' . esc_attr( json_encode( $sparkline_data ) ) . '"></span>';
 	}
 
 	/**

includes/admin/reports/class-wc-report-coupon-usage.php

@@ -506,7 +506,7 @@ class WC_Report_Coupon_Usage extends WC_Admin_Report {
 								position: "bottom",
 								tickColor: 'transparent',
 								mode: "time",
-								timeformat: "<?php echo ( $this->chart_groupby == 'day' ) ? '%d %b' : '%b'; ?>",
+								timeformat: "<?php echo ( 'day' === $this->chart_groupby ) ? '%d %b' : '%b'; ?>",
 								monthNames: <?php echo json_encode( array_values( $wp_locale->month_abbrev ) ) ?>,
 								tickLength: 1,
 								minTickSize: [1, "<?php echo $this->chart_groupby; ?>"],

includes/admin/reports/class-wc-report-customers.php

@@ -375,7 +375,7 @@ class WC_Report_Customers extends WC_Admin_Report {
 								position: "bottom",
 								tickColor: 'transparent',
 								mode: "time",
-								timeformat: "<?php echo ( $this->chart_groupby == 'day' ) ? '%d %b' : '%b'; ?>",
+								timeformat: "<?php echo ( 'day' === $this->chart_groupby ) ? '%d %b' : '%b'; ?>",
 								monthNames: <?php echo json_encode( array_values( $wp_locale->month_abbrev ) ) ?>,
 								tickLength: 1,
 								minTickSize: [1, "<?php echo $this->chart_groupby; ?>"],

includes/admin/reports/class-wc-report-sales-by-category.php

@@ -396,7 +396,7 @@ class WC_Report_Sales_By_Category extends WC_Admin_Report {
 									position: "bottom",
 									tickColor: 'transparent',
 									mode: "time",
-									timeformat: "<?php echo ( $this->chart_groupby == 'day' ) ? '%d %b' : '%b'; ?>",
+									timeformat: "<?php echo ( 'day' === $this->chart_groupby ) ? '%d %b' : '%b'; ?>",
 									monthNames: <?php echo json_encode( array_values( $wp_locale->month_abbrev ) ); ?>,
 									tickLength: 1,
 									minTickSize: [1, "<?php echo $this->chart_groupby; ?>"],

includes/admin/reports/class-wc-report-sales-by-date.php

@@ -674,7 +674,7 @@ class WC_Report_Sales_By_Date extends WC_Admin_Report {
 								position: "bottom",
 								tickColor: 'transparent',
 								mode: "time",
-								timeformat: "<?php echo ( $this->chart_groupby == 'day' ) ? '%d %b' : '%b'; ?>",
+								timeformat: "<?php echo ( 'day' === $this->chart_groupby ) ? '%d %b' : '%b'; ?>",
 								monthNames: <?php echo json_encode( array_values( $wp_locale->month_abbrev ) ) ?>,
 								tickLength: 1,
 								minTickSize: [1, "<?php echo $this->chart_groupby; ?>"],

includes/admin/reports/class-wc-report-sales-by-product.php

@@ -539,7 +539,7 @@ class WC_Report_Sales_By_Product extends WC_Admin_Report {
 									position: "bottom",
 									tickColor: 'transparent',
 									mode: "time",
-									timeformat: "<?php echo ( $this->chart_groupby == 'day' ) ? '%d %b' : '%b'; ?>",
+									timeformat: "<?php echo ( 'day' === $this->chart_groupby ) ? '%d %b' : '%b'; ?>",
 									monthNames: <?php echo json_encode( array_values( $wp_locale->month_abbrev ) ) ?>,
 									tickLength: 1,
 									minTickSize: [1, "<?php echo $this->chart_groupby; ?>"],

includes/admin/reports/class-wc-report-stock.php

@@ -51,7 +51,7 @@ class WC_Report_Stock extends WP_List_Table {
 	 */
 	public function display_tablenav( $position ) {
 
-		if ( $position != 'top' ) {
+		if ( 'top' !== $position ) {
 			parent::display_tablenav( $position );
 		}
 	}

includes/admin/reports/class-wc-report-taxes-by-date.php

@@ -128,7 +128,7 @@ class WC_Report_Taxes_By_Date extends WC_Admin_Report {
 		$tax_rows = array();
 
 		foreach ( $tax_rows_orders as $tax_row ) {
-			$key                                   = date( $this->chart_groupby == 'month' ? 'Ym' : 'Ymd', strtotime( $tax_row->post_date ) );
+			$key                                   = date( ( 'month' === $this->chart_groupby ) ? 'Ym' : 'Ymd', strtotime( $tax_row->post_date ) );
 			$tax_rows[ $key ]                      = isset( $tax_rows[ $key ] ) ? $tax_rows[ $key ] : (object) array( 'tax_amount' => 0, 'shipping_tax_amount' => 0, 'total_sales' => 0, 'total_shipping' => 0, 'total_orders' => 0 );
 			$tax_rows[ $key ]->tax_amount          += $tax_row->tax_amount;
 			$tax_rows[ $key ]->shipping_tax_amount += $tax_row->shipping_tax_amount;
@@ -138,7 +138,7 @@ class WC_Report_Taxes_By_Date extends WC_Admin_Report {
 		}
 
 		foreach ( $tax_rows_partial_refunds as $tax_row ) {
-			$key                                   = date( $this->chart_groupby == 'month' ? 'Ym' : 'Ymd', strtotime( $tax_row->post_date ) );
+			$key                                   = date( ( 'month' === $this->chart_groupby ) ? 'Ym' : 'Ymd', strtotime( $tax_row->post_date ) );
 			$tax_rows[ $key ]                      = isset( $tax_rows[ $key ] ) ? $tax_rows[ $key ] : (object) array( 'tax_amount' => 0, 'shipping_tax_amount' => 0, 'total_sales' => 0, 'total_shipping' => 0, 'total_orders' => 0 );
 			$tax_rows[ $key ]->tax_amount          += $tax_row->tax_amount;
 			$tax_rows[ $key ]->shipping_tax_amount += $tax_row->shipping_tax_amount;
@@ -165,12 +165,9 @@ class WC_Report_Taxes_By_Date extends WC_Admin_Report {
 						$total_tax = $tax_row->tax_amount + $tax_row->shipping_tax_amount;
 						?>
 						<tr>
-							<th scope="row"><?php
+							<th scope="row">
-								if ( $this->chart_groupby == 'month' )
+								<?php echo ( 'month' === $this->chart_groupby ) ? date_i18n( 'F', strtotime( $date . '01' ) ) : date_i18n( get_option( 'date_format' ), strtotime( $date ) ); ?>
-									echo date_i18n( 'F', strtotime( $date . '01' ) );
+							</th>
-								else
-									echo date_i18n( get_option( 'date_format' ), strtotime( $date ) );
-							?></th>
 							<td class="total_row"><?php echo $tax_row->total_orders; ?></td>
 							<td class="total_row"><?php echo wc_price( $gross ); ?></td>
 							<td class="total_row"><?php echo wc_price( $tax_row->total_shipping ); ?></td>

includes/admin/settings/class-wc-settings-api.php

@@ -135,7 +135,7 @@ class WC_Settings_Rest_API extends WC_Settings_Page {
 
 		if ( 'webhooks' == $current_section ) {
 			WC_Admin_Webhooks::page_output();
-		} else if ( 'keys' == $current_section ) {
+		} elseif ( 'keys' === $current_section ) {
 			WC_Admin_API_Keys::page_output();
 		} else {
 			$settings = $this->get_settings( $current_section );

includes/admin/settings/class-wc-settings-checkout.php

@@ -325,12 +325,7 @@ class WC_Settings_Payment_Gateways extends WC_Settings_Page {
 
 									case 'status' :
 										echo '<td class="status">';
-
+										echo ( 'yes' === $gateway->enabled ) ? '<span class="status-enabled tips" data-tip="' . __( 'Yes', 'woocommerce' ) . '">' . __( 'Yes', 'woocommerce' ) . '</span>' : '-';
-										if ( $gateway->enabled == 'yes' )
-											echo '<span class="status-enabled tips" data-tip="' . __( 'Yes', 'woocommerce' ) . '">' . __( 'Yes', 'woocommerce' ) . '</span>';
-										else
-											echo '-';
-
 										echo '</td>';
 										break;
 

includes/admin/settings/class-wc-settings-emails.php

@@ -204,7 +204,7 @@ class WC_Settings_Emails extends WC_Settings_Page {
 
 			if ( in_array( $current_section, array_map( 'sanitize_title', array_keys( $wc_emails->get_emails() ) ) ) ) {
 				foreach ( $wc_emails->get_emails() as $email_id => $email ) {
-					if ( $current_section === sanitize_title( $email_id ) ) {
+					if ( sanitize_title( $email_id ) === $current_section ) {
 						do_action( 'woocommerce_update_options_' . $this->id . '_' . $email->id );
 					}
 				}

includes/admin/settings/class-wc-settings-tax.php

@@ -90,7 +90,7 @@ class WC_Settings_Tax extends WC_Settings_Page {
 
 		$tax_classes = WC_Tax::get_tax_classes();
 
-		if ( $current_section == 'standard' || in_array( $current_section, array_map( 'sanitize_title', $tax_classes ) ) ) {
+		if ( 'standard' === $current_section || in_array( $current_section, array_map( 'sanitize_title', $tax_classes ) ) ) {
 			$this->output_tax_rates();
 		} else {
 			$settings = $this->get_settings();
@@ -260,7 +260,7 @@ class WC_Settings_Tax extends WC_Settings_Page {
 
 		// Loop posted fields
 		foreach ( $_POST['tax_rate_country'] as $key => $value ) {
-			$mode        = 0 === strpos( $key, 'new-' ) ? 'insert' : 'update';
+			$mode        = ( 0 === strpos( $key, 'new-' ) ) ? 'insert' : 'update';
 			$tax_rate    = $this->get_posted_tax_rate( $key, $index ++, $current_class );
 
 			if ( 'insert' === $mode ) {

includes/admin/views/html-admin-page-addons.php

@@ -20,7 +20,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 	<?php if ( $sections ) : ?>
 		<ul class="subsubsub">
 			<?php foreach ( $sections as $section_id => $section ) : ?>
-				<li><a class="<?php echo $current_section === $section_id ? 'current' : ''; ?>" href="<?php echo admin_url( 'admin.php?page=wc-addons&section=' . esc_attr( $section_id ) ); ?>"><?php echo esc_html( $section->title ); ?></a><?php if ( $section_id !== end( $section_keys ) ) echo ' |'; ?></li>
+				<li><a class="<?php echo $current_section === $section_id ? 'current' : ''; ?>" href="<?php echo admin_url( 'admin.php?page=wc-addons&section=' . esc_attr( $section_id ) ); ?>"><?php echo esc_html( $section->title ); ?></a><?php if ( end( $section_keys ) !== $section_id ) echo ' |'; ?></li>
 			<?php endforeach; ?>
 		</ul>
 		<br class="clear" />

includes/admin/views/html-admin-page-reports.php

@@ -55,7 +55,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 
 		$report = $reports[ $current_tab ]['reports'][ $current_report ];
 
-		if ( ! isset( $report['hide_title'] ) || $report['hide_title'] != true ) {
+		if ( ! isset( $report['hide_title'] ) || true != $report['hide_title'] ) {
 			echo '<h1>' . esc_html( $report['title'] ) . '</h1>';
 		} else {
 			echo '<h1 class="screen-reader-text">' . esc_html( $report['title'] ) . '</h1>';

includes/admin/views/html-admin-page-status-report.php

@@ -352,7 +352,7 @@ $pages          = $system_status->get_pages();
 						$version_string = ' &ndash; <strong style="color:red;">' . esc_html( sprintf( _x( '%s is available', 'Version info', 'woocommerce' ), $plugin['version_latest'] ) ) . '</strong>';
 					}
 
-					if ( $plugin['network_activated'] != false ) {
+					if ( false != $plugin['network_activated'] ) {
 						$network_string = ' &ndash; <strong style="color:black;">' . __( 'Network enabled', 'woocommerce' ) . '</strong>';
 					}
 				}
@@ -570,7 +570,7 @@ $pages          = $system_status->get_pages();
 								} else {
 									echo esc_html( $override['file'] );
 								}
-								if ( $i !== ( count( $theme['overrides'] ) - 1 ) ) {
+								if ( ( count( $theme['overrides'] ) - 1 ) !== $i ) {
 									echo ', ';
 								}
 								echo '<br />';

includes/admin/views/html-report-by-date.php

@@ -26,7 +26,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 						echo '<li class="' . ( $current_range == $range ? 'active' : '' ) . '"><a href="' . esc_url( remove_query_arg( array( 'start_date', 'end_date' ), add_query_arg( 'range', $range ) ) ) . '">' . $name . '</a></li>';
 					}
 				?>
-				<li class="custom <?php echo $current_range == 'custom' ? 'active' : ''; ?>">
+				<li class="custom <?php echo ( 'custom' === $current_range ) ? 'active' : ''; ?>">
 					<?php _e( 'Custom:', 'woocommerce' ); ?>
 					<form method="GET">
 						<div>

includes/api/class-wc-rest-authentication.php

@@ -36,10 +36,10 @@ class WC_REST_Authentication {
 		$rest_prefix = trailingslashit( rest_get_url_prefix() );
 
 		// Check if our endpoint.
-		$woocommerce = false !== strpos( $_SERVER['REQUEST_URI'], $rest_prefix . 'wc/' );
+		$woocommerce = ( false !== strpos( $_SERVER['REQUEST_URI'], $rest_prefix . 'wc/' ) );
 
 		// Allow third party plugins use our authentication methods.
-		$third_party = false !== strpos( $_SERVER['REQUEST_URI'], $rest_prefix . 'wc-' );
+		$third_party = ( false !== strpos( $_SERVER['REQUEST_URI'], $rest_prefix . 'wc-' ) );
 
 		return apply_filters( 'woocommerce_rest_is_request_to_rest_api', $woocommerce || $third_party );
 	}
@@ -356,7 +356,7 @@ class WC_REST_Authentication {
 		$query_string   = implode( '%26', $query_parameters ); // Join with ampersand.
 		$string_to_sign = $http_method . '&' . $base_request_uri . '&' . $query_string;
 
-		if ( $params['oauth_signature_method'] !== 'HMAC-SHA1' && $params['oauth_signature_method'] !== 'HMAC-SHA256' ) {
+		if ( 'HMAC-SHA1' !== $params['oauth_signature_method'] && 'HMAC-SHA256' !== $params['oauth_signature_method'] ) {
 			return new WP_Error( 'woocommerce_rest_authentication_error', __( 'Invalid Signature - signature method is invalid.', 'woocommerce' ), array( 'status' => 401 ) );
 		}
 

includes/api/class-wc-rest-coupons-controller.php

@@ -315,7 +315,7 @@ class WC_REST_Coupons_Controller extends WC_REST_Posts_Controller {
 		try {
 			$post_id = (int) $request['id'];
 
-			if ( empty( $post_id ) || $this->post_type !== get_post_type( $post_id ) ) {
+			if ( empty( $post_id ) || get_post_type( $post_id ) !== $this->post_type ) {
 				return new WP_Error( "woocommerce_rest_{$this->post_type}_invalid_id", __( 'ID is invalid.', 'woocommerce' ), array( 'status' => 400 ) );
 			}
 

includes/api/class-wc-rest-orders-controller.php

@@ -725,7 +725,7 @@ class WC_REST_Orders_Controller extends WC_REST_Posts_Controller {
 		try {
 			$post_id = (int) $request['id'];
 
-			if ( empty( $post_id ) || $this->post_type !== get_post_type( $post_id ) ) {
+			if ( empty( $post_id ) || get_post_type( $post_id ) !== $this->post_type ) {
 				return new WP_Error( "woocommerce_rest_{$this->post_type}_invalid_id", __( 'ID is invalid.', 'woocommerce' ), array( 'status' => 400 ) );
 			}
 

includes/api/class-wc-rest-products-controller.php

@@ -1494,7 +1494,7 @@ class WC_REST_Products_Controller extends WC_REST_Posts_Controller {
 
 			// Tax class.
 			if ( isset( $variation['tax_class'] ) ) {
-				if ( $variation['tax_class'] !== 'parent' ) {
+				if ( 'parent' !== $variation['tax_class'] ) {
 					update_post_meta( $variation_id, '_tax_class', wc_clean( $variation['tax_class'] ) );
 				} else {
 					delete_post_meta( $variation_id, '_tax_class' );

includes/api/class-wc-rest-system-status-tools-controller.php

@@ -414,7 +414,7 @@ class WC_REST_System_Status_Tools_Controller extends WC_REST_Controller {
 				if ( isset( $tools[ $tool ]['callback'] ) ) {
 					$callback = $tools[ $tool ]['callback'];
 					$return = call_user_func( $callback );
-					if ( $return === false ) {
+					if ( false === $return ) {
 						$callback_string = is_array( $callback ) ? get_class( $callback[0] ) . '::' . $callback[1] : $callback;
 						$ran = false;
 						$message = sprintf( __( 'There was an error calling %s', 'woocommerce' ), $callback_string );

includes/api/legacy/v1/class-wc-api-authentication.php

@@ -261,7 +261,7 @@ class WC_API_Authentication {
 
 		$string_to_sign = $http_method . '&' . $base_request_uri . '&' . $query_string;
 
-		if ( $params['oauth_signature_method'] !== 'HMAC-SHA1' && $params['oauth_signature_method'] !== 'HMAC-SHA256' ) {
+		if ( 'HMAC-SHA1' !== $params['oauth_signature_method'] && 'HMAC-SHA256' !== $params['oauth_signature_method'] ) {
 			throw new Exception( __( 'Invalid Signature - signature method is invalid', 'woocommerce' ), 401 );
 		}
 

includes/api/legacy/v2/class-wc-api-authentication.php

@@ -261,7 +261,7 @@ class WC_API_Authentication {
 
 		$string_to_sign = $http_method . '&' . $base_request_uri . '&' . $query_string;
 
-		if ( $params['oauth_signature_method'] !== 'HMAC-SHA1' && $params['oauth_signature_method'] !== 'HMAC-SHA256' ) {
+		if ( 'HMAC-SHA1' !== $params['oauth_signature_method'] && 'HMAC-SHA256' !== $params['oauth_signature_method'] ) {
 			throw new Exception( __( 'Invalid Signature - signature method is invalid', 'woocommerce' ), 401 );
 		}
 

includes/api/legacy/v2/class-wc-api-customers.php

@@ -559,7 +559,7 @@ class WC_API_Customers extends WC_API_Resource {
 
 		// Limit number of users returned
 		if ( ! empty( $args['limit'] ) ) {
-			if ( $args['limit'] == -1 ) {
+			if ( -1 == $args['limit'] ) {
 				unset( $query_args['number'] );
 			} else {
 				$query_args['number'] = absint( $args['limit'] );
@@ -606,7 +606,7 @@ class WC_API_Customers extends WC_API_Resource {
 		$query = new WP_User_Query( $query_args );
 
 		// Helper members for pagination headers
-		$query->total_pages = ( $args['limit'] == -1 ) ? 1 : ceil( $query->get_total() / $users_per_page );
+		$query->total_pages = ( -1 == $args['limit'] ) ? 1 : ceil( $query->get_total() / $users_per_page );
 		$query->page = $page;
 
 		return $query;

includes/api/legacy/v2/class-wc-api-orders.php

@@ -214,7 +214,7 @@ class WC_API_Orders extends WC_API_Resource {
 		// add line items
 		foreach ( $order->get_items() as $item_id => $item ) {
 			$product    = $item->get_product();
-			$hideprefix = ( isset( $filter['all_item_meta'] ) && $filter['all_item_meta'] === 'true' ) ? null : '_';
+			$hideprefix = ( isset( $filter['all_item_meta'] ) && 'true' === $filter['all_item_meta'] ) ? null : '_';
 			$item_meta  = $item->get_formatted_meta_data( $hideprefix );
 
 			foreach ( $item_meta as $key => $values ) {
@@ -301,7 +301,7 @@ class WC_API_Orders extends WC_API_Resource {
 
 			if ( ! empty( $status ) ) {
 
-				if ( $status == 'any' ) {
+				if ( 'any' === $status ) {
 
 					$order_statuses = array();
 
@@ -1506,7 +1506,7 @@ class WC_API_Orders extends WC_API_Resource {
 			// Add line items
 			foreach ( $refund->get_items( 'line_item' ) as $item_id => $item ) {
 				$product    = $item->get_product();
-				$hideprefix = ( isset( $filter['all_item_meta'] ) && $filter['all_item_meta'] === 'true' ) ? null : '_';
+				$hideprefix = ( isset( $filter['all_item_meta'] ) && 'true' === $filter['all_item_meta'] ) ? null : '_';
 				$item_meta  = $item->get_formatted_meta_data( $hideprefix );
 
 				foreach ( $item_meta as $key => $values ) {

includes/api/legacy/v2/class-wc-api-products.php

@@ -1021,7 +1021,7 @@ class WC_API_Products extends WC_API_Resource {
 
 		// Update parent if grouped so price sorting works and stays in sync with the cheapest child
 		$_product = wc_get_product( $product_id );
-		if ( $_product->post->post_parent > 0 || $product_type == 'grouped' ) {
+		if ( $_product->post->post_parent > 0 || 'grouped' === $product_type ) {
 
 			$clear_parent_ids = array();
 
@@ -1029,7 +1029,7 @@ class WC_API_Products extends WC_API_Resource {
 				$clear_parent_ids[] = $_product->post->post_parent;
 			}
 
-			if ( $product_type == 'grouped' ) {
+			if ( 'grouped' === $product_type ) {
 				$clear_parent_ids[] = $product_id;
 			}
 
@@ -1216,7 +1216,7 @@ class WC_API_Products extends WC_API_Resource {
 		}
 
 		// Product url
-		if ( $product_type == 'external' ) {
+		if ( 'external' === $product_type ) {
 			if ( isset( $data['product_url'] ) ) {
 				update_post_meta( $product_id, '_product_url', wc_clean( $data['product_url'] ) );
 			}
@@ -1319,7 +1319,7 @@ class WC_API_Products extends WC_API_Resource {
 			if ( isset( $variation['image'] ) && is_array( $variation['image'] ) ) {
 				$image = current( $variation['image'] );
 				if ( $image && is_array( $image ) ) {
-					if ( isset( $image['position'] ) && isset( $image['src'] ) && $image['position'] == 0 ) {
+					if ( isset( $image['position'] ) && isset( $image['src'] ) && 0 == $image['position'] ) {
 						$upload = $this->upload_product_image( wc_clean( $image['src'] ) );
 						if ( is_wp_error( $upload ) ) {
 							throw new WC_API_Exception( 'woocommerce_api_cannot_upload_product_image', $upload->get_error_message(), 400 );
@@ -1419,7 +1419,7 @@ class WC_API_Products extends WC_API_Resource {
 
 			// Tax class
 			if ( isset( $variation['tax_class'] ) ) {
-				if ( $variation['tax_class'] !== 'parent' ) {
+				if ( 'parent' !== $variation['tax_class'] ) {
 					update_post_meta( $variation_id, '_tax_class', wc_clean( $variation['tax_class'] ) );
 				} else {
 					delete_post_meta( $variation_id, '_tax_class' );
@@ -1752,7 +1752,7 @@ class WC_API_Products extends WC_API_Resource {
 			$gallery = array();
 
 			foreach ( $images as $image ) {
-				if ( isset( $image['position'] ) && $image['position'] == 0 ) {
+				if ( isset( $image['position'] ) && 0 == $image['position'] ) {
 					$attachment_id = isset( $image['id'] ) ? absint( $image['id'] ) : 0;
 
 					if ( 0 === $attachment_id && isset( $image['src'] ) ) {

includes/api/legacy/v3/class-wc-api-authentication.php

@@ -257,7 +257,7 @@ class WC_API_Authentication {
 
 		$string_to_sign = $http_method . '&' . $base_request_uri . '&' . $query_string;
 
-		if ( $params['oauth_signature_method'] !== 'HMAC-SHA1' && $params['oauth_signature_method'] !== 'HMAC-SHA256' ) {
+		if ( 'HMAC-SHA1' !== $params['oauth_signature_method'] && 'HMAC-SHA256' !== $params['oauth_signature_method'] ) {
 			throw new Exception( __( 'Invalid Signature - signature method is invalid', 'woocommerce' ), 401 );
 		}
 

includes/api/legacy/v3/class-wc-api-customers.php

@@ -548,7 +548,7 @@ class WC_API_Customers extends WC_API_Resource {
 
 		// Limit number of users returned
 		if ( ! empty( $args['limit'] ) ) {
-			if ( $args['limit'] == -1 ) {
+			if ( -1 == $args['limit'] ) {
 				unset( $query_args['number'] );
 			} else {
 				$query_args['number'] = absint( $args['limit'] );
@@ -595,7 +595,7 @@ class WC_API_Customers extends WC_API_Resource {
 		$query = new WP_User_Query( $query_args );
 
 		// Helper members for pagination headers
-		$query->total_pages = ( $args['limit'] == -1 ) ? 1 : ceil( $query->get_total() / $users_per_page );
+		$query->total_pages = ( -1 == $args['limit'] ) ? 1 : ceil( $query->get_total() / $users_per_page );
 		$query->page = $page;
 
 		return $query;

includes/api/legacy/v3/class-wc-api-orders.php

@@ -220,7 +220,7 @@ class WC_API_Orders extends WC_API_Resource {
 		// Add line items.
 		foreach ( $order->get_items() as $item_id => $item ) {
 			$product    = $item->get_product();
-			$hideprefix = ( isset( $filter['all_item_meta'] ) && $filter['all_item_meta'] === 'true' ) ? null : '_';
+			$hideprefix = ( isset( $filter['all_item_meta'] ) && 'true' === $filter['all_item_meta'] ) ? null : '_';
 			$item_meta  = $item->get_formatted_meta_data( $hideprefix );
 
 			foreach ( $item_meta as $key => $values ) {
@@ -337,7 +337,7 @@ class WC_API_Orders extends WC_API_Resource {
 
 			if ( ! empty( $status ) ) {
 
-				if ( $status == 'any' ) {
+				if ( 'any' === $status ) {
 
 					$order_statuses = array();
 
@@ -1551,7 +1551,7 @@ class WC_API_Orders extends WC_API_Resource {
 			// Add line items
 			foreach ( $refund->get_items( 'line_item' ) as $item_id => $item ) {
 				$product    = $item->get_product();
-				$hideprefix = ( isset( $filter['all_item_meta'] ) && $filter['all_item_meta'] === 'true' ) ? null : '_';
+				$hideprefix = ( isset( $filter['all_item_meta'] ) && 'true' === $filter['all_item_meta'] ) ? null : '_';
 				$item_meta  = $item->get_formatted_meta_data( $hideprefix );
 
 				foreach ( $item_meta as $key => $values ) {

includes/api/legacy/v3/class-wc-api-products.php

@@ -1506,7 +1506,7 @@ class WC_API_Products extends WC_API_Resource {
 
 		// Update parent if grouped so price sorting works and stays in sync with the cheapest child.
 		$_product = wc_get_product( $product_id );
-		if ( $_product->post->post_parent > 0 || $product_type == 'grouped' ) {
+		if ( $_product->post->post_parent > 0 || 'grouped' === $product_type ) {
 
 			$clear_parent_ids = array();
 
@@ -1514,7 +1514,7 @@ class WC_API_Products extends WC_API_Resource {
 				$clear_parent_ids[] = $_product->post->post_parent;
 			}
 
-			if ( $product_type == 'grouped' ) {
+			if ( 'grouped' === $product_type ) {
 				$clear_parent_ids[] = $product_id;
 			}
 
@@ -1706,7 +1706,7 @@ class WC_API_Products extends WC_API_Resource {
 		}
 
 		// Product url.
-		if ( $product_type == 'external' ) {
+		if ( 'external' === $product_type ) {
 			if ( isset( $data['product_url'] ) ) {
 				update_post_meta( $product_id, '_product_url', wc_clean( $data['product_url'] ) );
 			}
@@ -1814,7 +1814,7 @@ class WC_API_Products extends WC_API_Resource {
 			if ( isset( $variation['image'] ) && is_array( $variation['image'] ) ) {
 				$image = current( $variation['image'] );
 				if ( $image && is_array( $image ) ) {
-					if ( isset( $image['position'] ) && $image['position'] == 0 ) {
+					if ( isset( $image['position'] ) && 0 == $image['position'] ) {
 						if ( isset( $image['src'] ) ) {
 							$upload = $this->upload_product_image( wc_clean( $image['src'] ) );
 
@@ -1936,7 +1936,7 @@ class WC_API_Products extends WC_API_Resource {
 
 			// Tax class
 			if ( isset( $variation['tax_class'] ) ) {
-				if ( $variation['tax_class'] !== 'parent' ) {
+				if ( 'parent' !== $variation['tax_class'] ) {
 					update_post_meta( $variation_id, '_tax_class', wc_clean( $variation['tax_class'] ) );
 				} else {
 					delete_post_meta( $variation_id, '_tax_class' );
@@ -2274,7 +2274,7 @@ class WC_API_Products extends WC_API_Resource {
 			$gallery = array();
 
 			foreach ( $images as $image ) {
-				if ( isset( $image['position'] ) && $image['position'] == 0 ) {
+				if ( isset( $image['position'] ) && 0 == $image['position'] ) {
 					$attachment_id = isset( $image['id'] ) ? absint( $image['id'] ) : 0;
 
 					if ( 0 === $attachment_id && isset( $image['src'] ) ) {

includes/api/legacy/v3/class-wc-api-server.php

@@ -582,7 +582,7 @@ class WC_API_Server {
 				$page = 1;
 				$total_pages = 1;
 			}
-		} else if ( is_a( $query, 'stdClass' ) ) {
+		} elseif ( is_a( $query, 'stdClass' ) ) {
 			$page        = $query->page;
 			$single      = $query->is_single;
 			$total       = $query->total;

includes/cli/class-wc-cli-product.php

@@ -1294,7 +1294,7 @@ class WC_CLI_Product extends WC_CLI_Command {
 
 		// Update parent if grouped so price sorting works and stays in sync with the cheapest child
 		$_product = wc_get_product( $product_id );
-		if ( $_product && $_product->post->post_parent > 0 || $product_type == 'grouped' ) {
+		if ( $_product && $_product->post->post_parent > 0 || 'grouped' === $product_type ) {
 
 			$clear_parent_ids = array();
 
@@ -1302,7 +1302,7 @@ class WC_CLI_Product extends WC_CLI_Command {
 				$clear_parent_ids[] = $_product->post->post_parent;
 			}
 
-			if ( $product_type == 'grouped' ) {
+			if ( 'grouped' === $product_type ) {
 				$clear_parent_ids[] = $product_id;
 			}
 
@@ -1487,7 +1487,7 @@ class WC_CLI_Product extends WC_CLI_Command {
 		}
 
 		// Product url
-		if ( $product_type == 'external' ) {
+		if ( 'external' === $product_type ) {
 			if ( isset( $data['product_url'] ) ) {
 				update_post_meta( $product_id, '_product_url', wc_clean( $data['product_url'] ) );
 			}
@@ -1590,7 +1590,7 @@ class WC_CLI_Product extends WC_CLI_Command {
 			if ( isset( $variation['image'] ) && is_array( $variation['image'] ) ) {
 				$image = current( $variation['image'] );
 				if ( $image && is_array( $image ) ) {
-					if ( isset( $image['position'] ) && isset( $image['src'] ) && $image['position'] == 0 ) {
+					if ( isset( $image['position'] ) && isset( $image['src'] ) && 0 == $image['position'] ) {
 						$upload = $this->upload_product_image( wc_clean( $image['src'] ) );
 						if ( is_wp_error( $upload ) ) {
 							throw new WC_CLI_Exception( 'woocommerce_cli_cannot_upload_product_image', $upload->get_error_message() );
@@ -1710,7 +1710,7 @@ class WC_CLI_Product extends WC_CLI_Command {
 
 			// Tax class
 			if ( isset( $variation['tax_class'] ) ) {
-				if ( $variation['tax_class'] !== 'parent' ) {
+				if ( 'parent' !== $variation['tax_class'] ) {
 					update_post_meta( $variation_id, '_tax_class', wc_clean( $variation['tax_class'] ) );
 				} else {
 					delete_post_meta( $variation_id, '_tax_class' );
@@ -1836,7 +1836,7 @@ class WC_CLI_Product extends WC_CLI_Command {
 			$gallery = array();
 
 			foreach ( $images as $image ) {
-				if ( isset( $image['position'] ) && $image['position'] == 0 ) {
+				if ( isset( $image['position'] ) && 0 == $image['position'] ) {
 					$attachment_id = isset( $image['id'] ) ? absint( $image['id'] ) : 0;
 
 					if ( 0 === $attachment_id && isset( $image['src'] ) ) {

includes/emails/class-wc-email.php

@@ -582,7 +582,7 @@ class WC_Email extends WC_Settings_API {
 			if ( is_writeable( $file ) ) {
 				$f = fopen( $file, 'w+' );
 
-				if ( $f !== false ) {
+				if ( false !== $f ) {
 					fwrite( $f, $code );
 					fclose( $f );
 					$saved = true;

includes/gateways/simplify-commerce/class-wc-gateway-simplify-commerce.php

@@ -57,8 +57,8 @@ class WC_Gateway_Simplify_Commerce extends WC_Payment_Gateway_CC {
 		$this->mode            = $this->get_option( 'mode', 'standard' );
 		$this->modal_color     = $this->get_option( 'modal_color', '#a46497' );
 		$this->sandbox         = $this->get_option( 'sandbox' );
-		$this->public_key      = $this->sandbox == 'no' ? $this->get_option( 'public_key' ) : $this->get_option( 'sandbox_public_key' );
+		$this->public_key      = ( 'no' === $this->sandbox ) ? $this->get_option( 'public_key' ) : $this->get_option( 'sandbox_public_key' );
-		$this->private_key     = $this->sandbox == 'no' ? $this->get_option( 'private_key' ) : $this->get_option( 'sandbox_private_key' );
+		$this->private_key     = ( 'no' === $this->sandbox ) ? $this->get_option( 'private_key' ) : $this->get_option( 'sandbox_private_key' );
 
 		$this->init_simplify_sdk();
 

includes/libraries/class-wc-eval-math.php

@@ -121,10 +121,10 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 				// find out if we're currently at the beginning of a number/variable/function/parenthesis/operand
 				$ex = preg_match( '/^([A-Za-z]\w*\(?|\d+(?:\.\d*)?|\.\d+|\()/', substr( $expr, $index ), $match );
 				// ===============
-				if ( $op == '-' and ! $expecting_op ) { // is it a negation instead of a minus?
+				if ( '-' === $op and ! $expecting_op ) { // is it a negation instead of a minus?
 					$stack->push( '_' ); // put a negation on the stack
 					$index++;
-				} elseif ( $op == '_' ) { // we have to explicitly deny this, because it's legal on the stack
+				} elseif ( '_' === $op ) { // we have to explicitly deny this, because it's legal on the stack
 					return self::trigger( "illegal character '_'" ); // but not in the input expression
 					// ===============
 				} elseif ( ( in_array( $op, $ops ) or $ex ) and $expecting_op ) { // are we putting an operator on the stack?
@@ -141,10 +141,13 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 					$index++;
 					$expecting_op = false;
 					// ===============
-				} elseif ( $op == ')' and $expecting_op ) { // ready to close a parenthesis?
+				} elseif ( ')' === $op && $expecting_op ) { // ready to close a parenthesis?
 					while ( ( $o2 = $stack->pop() ) != '(' ) { // pop off the stack back to the last (
-						if ( is_null( $o2 ) ) return self::trigger( "unexpected ')'" );
+						if ( is_null( $o2 ) ) {
-						else $output[] = $o2;
+							return self::trigger( "unexpected ')'" );
+						} else {
+							$output[] = $o2;
+						}
 					}
 					if ( preg_match( "/^([A-Za-z]\w*)\($/", $stack->last( 2 ), $matches ) ) { // did we just close a function?
 						$fnn = $matches[1]; // get the function name
@@ -154,7 +157,7 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 							if ( $arg_count > 1 )
 								return self::trigger( "too many arguments ($arg_count given, 1 expected)" );
 						} elseif ( array_key_exists( $fnn, self::$f ) ) {
-							if ( $arg_count != count( self::$f[ $fnn ]['args'] ) )
+							if ( count( self::$f[ $fnn ]['args'] ) != $arg_count )
 								return self::trigger( "wrong number of arguments ($arg_count given, " . count( self::$f[ $fnn ]['args'] ) . " expected)" );
 						} else { // did we somehow push a non-function on the stack? this should never happen
 							return self::trigger( "internal error" );
@@ -162,10 +165,13 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 					}
 					$index++;
 					// ===============
-				} elseif ( $op == ',' and $expecting_op ) { // did we just finish a function argument?
+				} elseif ( ',' === $op and $expecting_op ) { // did we just finish a function argument?
 					while ( ( $o2 = $stack->pop() ) != '(' ) {
-						if ( is_null( $o2 ) ) return self::trigger( "unexpected ','" ); // oops, never had a (
+						if ( is_null( $o2 ) ) {
-						else $output[] = $o2; // pop the argument expression stuff and push onto the output
+							return self::trigger( "unexpected ','" ); // oops, never had a (
+						} else {
+							$output[] = $o2; // pop the argument expression stuff and push onto the output
+						}
 					}
 					// make sure there was a function
 					if ( ! preg_match( "/^([A-Za-z]\w*)\($/", $stack->last( 2 ), $matches ) )
@@ -175,7 +181,7 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 					$index++;
 					$expecting_op = false;
 					// ===============
-				} elseif ( $op == '(' and ! $expecting_op ) {
+				} elseif ( '(' === $op and ! $expecting_op ) {
 					$stack->push( '(' ); // that was easy
 					$index++;
 					// ===============
@@ -197,14 +203,14 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 					}
 					$index += strlen( $val );
 					// ===============
-				} elseif ( $op == ')' ) { // miscellaneous error checking
+				} elseif ( ')' === $op ) { // miscellaneous error checking
 					return self::trigger( "unexpected ')'" );
 				} elseif ( in_array( $op, $ops ) and ! $expecting_op ) {
 					return self::trigger( "unexpected operator '$op'" );
 				} else { // I don't even want to know what you did to get here
 					return self::trigger( "an unexpected error occured" );
 				}
-				if ( $index == strlen( $expr ) ) {
+				if ( strlen( $expr ) == $index ) {
 					if ( in_array( $op, $ops ) ) { // did we end with an operator? bad.
 						return self::trigger( "operator '$op' lacks operand" );
 					} else {
@@ -216,7 +222,9 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 				}
 			}
 			while ( ! is_null( $op = $stack->pop() ) ) { // pop everything off the stack and push onto output
-				if ( $op == '(' ) return self::trigger( "expecting ')'" ); // if there are (s on the stack, ()s were unbalanced
+				if ( '(' === $op ) {
+					return self::trigger( "expecting ')'" ); // if there are (s on the stack, ()s were unbalanced
+				}
 				$output[] = $op;
 			}
 			return $output;
@@ -231,7 +239,9 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 		 * @return mixed
 		 */
 		private static function pfx( $tokens, $vars = array() ) {
-			if ( $tokens == false ) return false;
+			if ( false == $tokens ) {
+				return false;
+			}
 			$stack = new WC_Eval_Math_Stack;
 
 			foreach ( $tokens as $token ) { // nice and easy
@@ -250,7 +260,9 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 							$stack->push( $op1 * $op2 );
 							break;
 						case '/':
-							if ( $op2 == 0 ) return self::trigger( "division by zero" );
+							if ( 0 == $op2 ) {
+								return self::trigger( 'division by zero' );
+							}
 							$stack->push( $op1 / $op2 );
 							break;
 						case '^':
@@ -258,7 +270,7 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 							break;
 					}
 					// if the token is a unary operator, pop one value off the stack, do the operation, and push it back on
-				} elseif ( $token == "_" ) {
+				} elseif ( '_' === $token ) {
 					$stack->push( -1 * $stack->pop() );
 					// if the token is a function, pop arguments off the stack, hand them to the function, and push the result back on
 				} elseif ( ! preg_match( "/^([a-z]\w*)\($/", $token, $matches ) ) {
@@ -274,7 +286,9 @@ if ( ! class_exists( 'WC_Eval_Math' ) ) {
 				}
 			}
 			// when we're out of tokens, the stack should have a single element, the final result
-			if ( $stack->count != 1 ) return self::trigger( "internal error" );
+			if ( 1 != $stack->count ) {
+				return self::trigger( "internal error" );
+			}
 			return $stack->pop();
 		}
 

includes/shipping/flat-rate/class-wc-shipping-flat-rate.php

@@ -136,7 +136,7 @@ class WC_Shipping_Flat_Rate extends WC_Shipping_Method {
 		$has_costs = false; // True when a cost is set. False if all costs are blank strings.
 		$cost      = $this->get_option( 'cost' );
 
-		if ( $cost !== '' ) {
+		if ( '' !== $cost ) {
 			$has_costs    = true;
 			$rate['cost'] = $this->evaluate_cost( $cost, array(
 				'qty'  => $this->get_package_item_qty( $package ),
@@ -153,7 +153,7 @@ class WC_Shipping_Flat_Rate extends WC_Shipping_Method {
 			$shipping_class_term = get_term_by( 'slug', $shipping_class, 'product_shipping_class' );
 			$class_cost_string   = $shipping_class_term && $shipping_class_term->term_id ? $this->get_option( 'class_cost_' . $shipping_class_term->term_id, $this->get_option( 'class_cost_' . $shipping_class, '' ) ) : $this->get_option( 'no_class_cost', '' );
 
-			if ( $class_cost_string === '' ) {
+			if ( '' === $class_cost_string ) {
 				continue;
 			}
 
@@ -163,14 +163,14 @@ class WC_Shipping_Flat_Rate extends WC_Shipping_Method {
 				'cost' => array_sum( wp_list_pluck( $products, 'line_total' ) ),
 			) );
 
-			if ( $this->type === 'class' ) {
+			if ( 'class' === $this->type ) {
 				$rate['cost'] += $class_cost;
 			} else {
 				$highest_class_cost = $class_cost > $highest_class_cost ? $class_cost : $highest_class_cost;
 			}
 		}
 
-		if ( $this->type === 'order' && $highest_class_cost ) {
+		if ( 'order' === $this->type && $highest_class_cost ) {
 			$rate['cost'] += $highest_class_cost;
 		}
 

includes/shipping/legacy-flat-rate/class-wc-shipping-legacy-flat-rate.php

@@ -162,7 +162,7 @@ class WC_Shipping_Legacy_Flat_Rate extends WC_Shipping_Method {
 		$has_costs = false; // True when a cost is set. False if all costs are blank strings.
 		$cost      = $this->get_option( 'cost' );
 
-		if ( $cost !== '' ) {
+		if ( '' !== $cost ) {
 			$has_costs    = true;
 			$rate['cost'] = $this->evaluate_cost( $cost, array(
 				'qty'  => $this->get_package_item_qty( $package ),
@@ -179,7 +179,7 @@ class WC_Shipping_Legacy_Flat_Rate extends WC_Shipping_Method {
 			$shipping_class_term = get_term_by( 'slug', $shipping_class, 'product_shipping_class' );
 			$class_cost_string   = $shipping_class_term && $shipping_class_term->term_id ? $this->get_option( 'class_cost_' . $shipping_class_term->term_id, $this->get_option( 'class_cost_' . $shipping_class, '' ) ) : $this->get_option( 'no_class_cost', '' );
 
-			if ( $class_cost_string === '' ) {
+			if ( '' === $class_cost_string ) {
 				continue;
 			}
 
@@ -189,14 +189,14 @@ class WC_Shipping_Legacy_Flat_Rate extends WC_Shipping_Method {
 				'cost' => array_sum( wp_list_pluck( $products, 'line_total' ) ),
 			) );
 
-			if ( $this->type === 'class' ) {
+			if ( 'class' === $this->type ) {
 				$rate['cost'] += $class_cost;
 			} else {
 				$highest_class_cost = $class_cost > $highest_class_cost ? $class_cost : $highest_class_cost;
 			}
 		}
 
-		if ( $this->type === 'order' && $highest_class_cost ) {
+		if ( 'order' === $this->type && $highest_class_cost ) {
 			$rate['cost'] += $highest_class_cost;
 		}
 

includes/shipping/legacy-local-pickup/class-wc-shipping-legacy-local-pickup.php

@@ -136,7 +136,7 @@ class WC_Shipping_Legacy_Local_Pickup extends WC_Shipping_Method {
 	public function get_valid_postcodes() {
 		$codes = array();
 
-		if ( $this->codes != '' ) {
+		if ( '' !== $this->codes ) {
 			foreach ( explode( ',', $this->codes ) as $code ) {
 				$codes[] = strtoupper( trim( $code ) );
 			}
@@ -196,7 +196,7 @@ class WC_Shipping_Legacy_Local_Pickup extends WC_Shipping_Method {
 		}
 
 		if ( $is_available ) {
-			if ( $this->availability === 'specific' ) {
+			if ( 'specific' === $this->availability ) {
 				$ship_to_countries = $this->countries;
 			} else {
 				$ship_to_countries = array_keys( WC()->countries->get_shipping_countries() );

includes/walkers/class-product-cat-dropdown-walker.php

@@ -54,7 +54,7 @@ class WC_Product_Cat_Dropdown_Walker extends Walker {
 		}
 
 		$cat_name = apply_filters( 'list_product_cats', $cat->name, $cat );
-		$value    = isset( $args['value'] ) && $args['value'] == 'id' ? $cat->term_id : $cat->slug;
+		$value    = ( isset( $args['value'] ) && 'id' === $args['value'] ) ? $cat->term_id : $cat->slug;
 		$output  .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $value ) . "\"";
 
 		if ( $value === $args['selected'] || ( is_array( $args['selected'] ) && in_array( $value, $args['selected'] ) ) ) {

includes/widgets/class-wc-widget-layered-nav.php

@@ -441,7 +441,7 @@ class WC_Widget_Layered_Nav extends WC_Widget {
 				$link = add_query_arg( $filter_name, implode( ',', $current_filter ), $link );
 
 				// Add Query type Arg to URL
-				if ( $query_type === 'or' && ! ( 1 === sizeof( $current_filter ) && $option_is_set ) ) {
+				if ( 'or' === $query_type && ! ( 1 === sizeof( $current_filter ) && $option_is_set ) ) {
 					$link = add_query_arg( 'query_type_' . sanitize_title( str_replace( 'pa_', '', $taxonomy ) ), 'or', $link );
 				}
 			}

includes/widgets/class-wc-widget-product-categories.php

@@ -104,7 +104,7 @@ class WC_Widget_Product_Categories extends WC_Widget {
 
 		// Menu Order
 		$list_args['menu_order'] = false;
-		if ( $orderby == 'order' ) {
+		if ( 'order' === $orderby ) {
 			$list_args['menu_order'] = 'asc';
 		} else {
 			$list_args['orderby']    = 'title';

includes/widgets/class-wc-widget-rating-filter.php

@@ -170,7 +170,7 @@ class WC_Widget_Rating_Filter extends WC_Widget {
 			$link  = $this->get_page_base_url();
 			$link  = $min_rating !== $rating ? add_query_arg( 'min_rating', $rating, $link ) : $link;
 
-			echo '<li class="wc-layered-nav-rating ' . ( ! empty( $_GET['min_rating'] ) && $rating === absint( $_GET['min_rating'] ) ? 'chosen' : '' ) . '">';
+			echo '<li class="wc-layered-nav-rating ' . ( ( ! empty( $_GET['min_rating'] ) && absint( $_GET['min_rating'] ) === $rating ) ? 'chosen' : '' ) . '">';
 
 			echo '<a href="' . esc_url( apply_filters( 'woocommerce_rating_filter_link', $link ) ) . '">';
 

templates/emails/email-order-details.php

@@ -52,8 +52,8 @@ do_action( 'woocommerce_email_before_order_table', $order, $sent_to_admin, $plai
 				foreach ( $totals as $total ) {
 					$i++;
 					?><tr>
-						<th class="td" scope="row" colspan="2" style="text-align:left; <?php if ( $i === 1 ) echo 'border-top-width: 4px;'; ?>"><?php echo $total['label']; ?></th>
+						<th class="td" scope="row" colspan="2" style="text-align:left; <?php echo ( 1 === $i ) ? 'border-top-width: 4px;' : ''; ?>"><?php echo $total['label']; ?></th>
-						<td class="td" style="text-align:left; <?php if ( $i === 1 ) echo 'border-top-width: 4px;'; ?>"><?php echo $total['value']; ?></td>
+						<td class="td" style="text-align:left; <?php echo ( 1 === $i ) ? 'border-top-width: 4px;' : ''; ?>"><?php echo $total['value']; ?></td>
 					</tr><?php
 				}
 			}

templates/myaccount/form-edit-address.php

@@ -20,7 +20,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 	exit;
 }
 
-$page_title = ( $load_address === 'billing' ) ? __( 'Billing Address', 'woocommerce' ) : __( 'Shipping Address', 'woocommerce' );
+$page_title = ( 'billing' === $load_address ) ? __( 'Billing Address', 'woocommerce' ) : __( 'Shipping Address', 'woocommerce' );
 
 do_action( 'woocommerce_before_edit_account_address_form' ); ?>
 

templates/myaccount/orders.php

@@ -107,7 +107,7 @@ do_action( 'woocommerce_before_account_orders', $has_orders ); ?>
 				<a class="woocommerce-Button woocommerce-Button--previous button" href="<?php echo esc_url( wc_get_endpoint_url( 'orders', $current_page - 1 ) ); ?>"><?php _e( 'Previous', 'woocommerce' ); ?></a>
 			<?php endif; ?>
 
-			<?php if ( $current_page !== intval( $customer_orders->max_num_pages ) ) : ?>
+			<?php if ( intval( $customer_orders->max_num_pages ) !== $current_page ) : ?>
 				<a class="woocommerce-Button woocommerce-Button--next button" href="<?php echo esc_url( wc_get_endpoint_url( 'orders', $current_page + 1 ) ); ?>"><?php _e( 'Next', 'woocommerce' ); ?></a>
 			<?php endif; ?>
 		</div>

templates/single-product/product-thumbnails.php

@@ -34,11 +34,11 @@ if ( $attachment_ids ) {
 
 			$classes = array( 'zoom' );
 
-			if ( $loop === 0 || $loop % $columns === 0 ) {
+			if ( 0 === $loop || 0 === $loop % $columns ) {
 				$classes[] = 'first';
 			}
 
-			if ( ( $loop + 1 ) % $columns === 0 ) {
+			if ( 0 === ( $loop + 1 ) % $columns ) {
 				$classes[] = 'last';
 			}