wp-bootstrap / wp-bootstrap-navwalker

class-wp-bootstrap-navwalker.php

Spacing +123 added lines, -123 removed lines

@@ -18,7 +18,7 @@ 
  */
 
 // Check if Class Exists.
-if ( ! class_exists( 'WP_Bootstrap_Navwalker' ) ) :
+if ( ! class_exists('WP_Bootstrap_Navwalker')) :
 	/**
 	 * WP_Bootstrap_Navwalker class.
 	 */
@@ -38,8 +38,8 @@ 
 		 * @since 4.2.0
 		 */
 		public function __construct() {
-			if ( ! has_filter( 'wp_nav_menu_args', array( $this, 'add_schema_to_navbar_ul' ) ) ) {
-				add_filter( 'wp_nav_menu_args', array( $this, 'add_schema_to_navbar_ul' ) );
+			if ( ! has_filter('wp_nav_menu_args', array($this, 'add_schema_to_navbar_ul'))) {
+				add_filter('wp_nav_menu_args', array($this, 'add_schema_to_navbar_ul'));
 			}
 		}
 
@@ -54,17 +54,17 @@ 
 		 * @param int              $depth  Depth of menu item. Used for padding.
 		 * @param WP_Nav_Menu_Args $args   An object of wp_nav_menu() arguments.
 		 */
-		public function start_lvl( &$output, $depth = 0, $args = null ) {
-			if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
+		public function start_lvl(&$output, $depth = 0, $args = null) {
+			if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
 				$t = '';
 				$n = '';
 			} else {
 				$t = "\t";
 				$n = "\n";
 			}
-			$indent = str_repeat( $t, $depth );
+			$indent = str_repeat($t, $depth);
 			// Default class to add to the file.
-			$classes = array( 'dropdown-menu' );
+			$classes = array('dropdown-menu');
 			/**
 			 * Filters the CSS class(es) applied to a menu list element.
 			 *
@@ -74,8 +74,8 @@ 
 			 * @param stdClass $args    An object of `wp_nav_menu()` arguments.
 			 * @param int      $depth   Depth of menu item. Used for padding.
 			 */
-			$class_names = join( ' ', apply_filters( 'nav_menu_submenu_css_class', $classes, $args, $depth ) );
-			$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
+			$class_names = join(' ', apply_filters('nav_menu_submenu_css_class', $classes, $args, $depth));
+			$class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : '';
 
 			/*
 			 * The `.dropdown-menu` container needs to have a labelledby
@@ -86,11 +86,11 @@ 
 			 */
 			$labelledby = '';
 			// Find all links with an id in the output.
-			preg_match_all( '/(<a.*?id=\"|\')(.*?)\"|\'.*?>/im', $output, $matches );
+			preg_match_all('/(<a.*?id=\"|\')(.*?)\"|\'.*?>/im', $output, $matches);
 			// With pointer at end of array check if we got an ID match.
-			if ( end( $matches[2] ) ) {
+			if (end($matches[2])) {
 				// Build a string to use as aria-labelledby.
-				$labelledby = 'aria-labelledby="' . esc_attr( end( $matches[2] ) ) . '"';
+				$labelledby = 'aria-labelledby="' . esc_attr(end($matches[2])) . '"';
 			}
 			$output .= "{$n}{$indent}<ul$class_names $labelledby>{$n}";
 		}
@@ -109,30 +109,30 @@ 
 		 * @param WP_Nav_Menu_Args $args   An object of wp_nav_menu() arguments.
 		 * @param int              $id     Current item ID.
 		 */
-		public function start_el( &$output, $item, $depth = 0, $args = null, $id = 0 ) {
-			if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
+		public function start_el(&$output, $item, $depth = 0, $args = null, $id = 0) {
+			if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
 				$t = '';
 				$n = '';
 			} else {
 				$t = "\t";
 				$n = "\n";
 			}
-			$indent = ( $depth ) ? str_repeat( $t, $depth ) : '';
+			$indent = ($depth) ? str_repeat($t, $depth) : '';
 
-			if ( false !== strpos( $args->items_wrap, 'itemscope' ) && false === $this->has_schema ) {
+			if (false !== strpos($args->items_wrap, 'itemscope') && false === $this->has_schema) {
 				$this->has_schema  = true;
 				$args->link_before = '<span itemprop="name">' . $args->link_before;
 				$args->link_after .= '</span>';
 			}
 
-			$classes = empty( $item->classes ) ? array() : (array) $item->classes;
+			$classes = empty($item->classes) ? array() : (array) $item->classes;
 
 			// Updating the CSS classes of a menu item in the WordPress Customizer preview results in all classes defined
 			// in that particular input box to come in as one big class string.
-			$split_on_spaces = function ( $class ) {
-				return preg_split( '/\s+/', $class );
+			$split_on_spaces = function($class) {
+				return preg_split('/\s+/', $class);
 			};
-			$classes         = $this->flatten( array_map( $split_on_spaces, $classes ) );
+			$classes         = $this->flatten(array_map($split_on_spaces, $classes));
 
 			/*
 			 * Initialize some holder variables to store specially handled item
@@ -147,31 +147,31 @@ 
 			 * NOTE: linkmod and icon class arrays are passed by reference and
 			 * are maybe modified before being used later in this function.
 			 */
-			$classes = $this->separate_linkmods_and_icons_from_classes( $classes, $linkmod_classes, $icon_classes, $depth );
+			$classes = $this->separate_linkmods_and_icons_from_classes($classes, $linkmod_classes, $icon_classes, $depth);
 
 			// Join any icon classes plucked from $classes into a string.
-			$icon_class_string = join( ' ', $icon_classes );
+			$icon_class_string = join(' ', $icon_classes);
 
 			// Whether the current item is a dropdown.
 			$is_dropdown = false;
-			if ( $this->has_children && 1 !== $args->depth ) {
+			if ($this->has_children && 1 !== $args->depth) {
 				$is_dropdown = true;
-				if ( $depth >= $args->depth - 1 && 0 !== $args->depth ) {
+				if ($depth >= $args->depth - 1 && 0 !== $args->depth) {
 					$is_dropdown = false;
 				}
 			}
 
 			// Whether the current item is a dropdown item.
 			$is_dropdown_item = false;
-			if ( ! ( $this->has_children && 0 === $depth ) && $depth > 0 ) {
+			if ( ! ($this->has_children && 0 === $depth) && $depth > 0) {
 				$is_dropdown_item = true;
 			}
 
 			// Whether the current item is active or the item is an ancestor of
 			// an active item.
 			$is_active = false;
-			if ( $item->current || $item->current_item_ancestor ) {
-				if ( ! ( $item->current_item_ancestor && 1 === $args->depth ) ) {
+			if ($item->current || $item->current_item_ancestor) {
+				if ( ! ($item->current_item_ancestor && 1 === $args->depth)) {
 					$is_active = true;
 				}
 			}
@@ -187,13 +187,13 @@ 
 			 *
 			 * @var WP_Nav_Menu_Args
 			 */
-			$args = apply_filters( 'nav_menu_item_args', $args, $item, $depth );
+			$args = apply_filters('nav_menu_item_args', $args, $item, $depth);
 
-			if ( $is_dropdown ) {
+			if ($is_dropdown) {
 				$classes[] = 'dropdown';
 			}
 
-			if ( $is_active && ! $is_dropdown_item ) {
+			if ($is_active && ! $is_dropdown_item) {
 				// For dropdown items the .active class is set on the a tag.
 				$classes[] = 'active';
 			}
@@ -203,11 +203,11 @@ 
 			$classes[] = 'nav-item';
 
 			// Allow filtering the classes.
-			$classes = apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth );
+			$classes = apply_filters('nav_menu_css_class', array_filter($classes), $item, $args, $depth);
 
 			// Form a string of classes in format: class="class_names".
-			$class_names = join( ' ', $classes );
-			$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
+			$class_names = join(' ', $classes);
+			$class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : '';
 
 			/**
 			 * Filters the ID applied to a menu item's list item element.
@@ -220,37 +220,37 @@ 
 			 * @param WP_Nav_Menu_Args $args    An object of wp_nav_menu() arguments.
 			 * @param int              $depth   Depth of menu item. Used for padding.
 			 */
-			$id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth );
-			$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
+			$id = apply_filters('nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth);
+			$id = $id ? ' id="' . esc_attr($id) . '"' : '';
 
 			$output .= $indent . '<li ' . $id . $class_names . '>';
 
 			// Initialize array for holding the $atts for the link item.
 			$atts           = array();
-			$atts['title']  = ! empty( $item->attr_title ) ? $item->attr_title : '';
-			$atts['target'] = ! empty( $item->target ) ? $item->target : '';
-			if ( '_blank' === $item->target && empty( $item->xfn ) ) {
+			$atts['title']  = ! empty($item->attr_title) ? $item->attr_title : '';
+			$atts['target'] = ! empty($item->target) ? $item->target : '';
+			if ('_blank' === $item->target && empty($item->xfn)) {
 				$atts['rel'] = 'noopener noreferrer';
 			} else {
-				$atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : '';
+				$atts['rel'] = ! empty($item->xfn) ? $item->xfn : '';
 			}
 
 			// If the item has_children add atts to <a>.
-			if ( $is_dropdown ) {
+			if ($is_dropdown) {
 				$atts['href']          = '#';
 				$atts['data-toggle']   = 'dropdown';
 				$atts['aria-expanded'] = 'false';
 				$atts['class']         = 'dropdown-toggle nav-link';
 				$atts['id']            = 'menu-item-dropdown-' . $item->ID;
 			} else {
-				if ( true === $this->has_schema ) {
+				if (true === $this->has_schema) {
 					$atts['itemprop'] = 'url';
 				}
 
-				$atts['href'] = ! empty( $item->url ) ? $item->url : '#';
+				$atts['href'] = ! empty($item->url) ? $item->url : '#';
 
 				// For items in dropdowns use .dropdown-item instead of .nav-link.
-				if ( $is_dropdown_item ) {
+				if ($is_dropdown_item) {
 					$atts['class']  = 'dropdown-item';
 					$atts['class'] .= $is_active ? ' active' : '';
 				} else {
@@ -261,33 +261,33 @@ 
 			$atts['aria-current'] = $item->current ? 'page' : '';
 
 			// Update atts of this item based on any custom linkmod classes.
-			$atts = $this->update_atts_for_linkmod_type( $atts, $linkmod_classes );
+			$atts = $this->update_atts_for_linkmod_type($atts, $linkmod_classes);
 
 			// Allow filtering of the $atts array before using it.
-			$atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth );
+			$atts = apply_filters('nav_menu_link_attributes', $atts, $item, $args, $depth);
 
 			// Build a string of html containing all the atts for the item.
 			$attributes = '';
-			foreach ( $atts as $attr => $value ) {
-				if ( ! empty( $value ) ) {
-					$value       = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
+			foreach ($atts as $attr => $value) {
+				if ( ! empty($value)) {
+					$value       = ('href' === $attr) ? esc_url($value) : esc_attr($value);
 					$attributes .= ' ' . $attr . '="' . $value . '"';
 				}
 			}
 
 			// Set a typeflag to easily test if this is a linkmod or not.
-			$linkmod_type = $this->get_linkmod_type( $linkmod_classes );
+			$linkmod_type = $this->get_linkmod_type($linkmod_classes);
 
 			// START appending the internal item contents to the output.
-			$item_output = isset( $args->before ) ? $args->before : '';
+			$item_output = isset($args->before) ? $args->before : '';
 
 			/*
 			 * This is the start of the internal nav item. Depending on what
 			 * kind of linkmod we have we may need different wrapper elements.
 			 */
-			if ( '' !== $linkmod_type ) {
+			if ('' !== $linkmod_type) {
 				// Is linkmod, output the required element opener.
-				$item_output .= $this->linkmod_element_open( $linkmod_type, $attributes );
+				$item_output .= $this->linkmod_element_open($linkmod_type, $attributes);
 			} else {
 				// With no link mod type set this must be a standard <a> tag.
 				$item_output .= '<a' . $attributes . '>';
@@ -299,13 +299,13 @@ 
 			 * output inside of the item before the $title (the link text).
 			 */
 			$icon_html = '';
-			if ( ! empty( $icon_class_string ) ) {
+			if ( ! empty($icon_class_string)) {
 				// Append an <i> with the icon classes to what is output before links.
-				$icon_html = '<i class="' . esc_attr( $icon_class_string ) . '" aria-hidden="true"></i> ';
+				$icon_html = '<i class="' . esc_attr($icon_class_string) . '" aria-hidden="true"></i> ';
 			}
 
 			/** This filter is documented in wp-includes/post-template.php */
-			$title = apply_filters( 'the_title', $item->title, $item->ID );
+			$title = apply_filters('the_title', $item->title, $item->ID);
 
 			/**
 			 * Filters a menu item's title.
@@ -317,36 +317,36 @@ 
 			 * @param WP_Nav_Menu_Args $args  An object of wp_nav_menu() arguments.
 			 * @param int              $depth Depth of menu item. Used for padding.
 			 */
-			$title = apply_filters( 'nav_menu_item_title', $title, $item, $args, $depth );
+			$title = apply_filters('nav_menu_item_title', $title, $item, $args, $depth);
 
 			// If the .sr-only class was set apply to the nav items text only.
-			if ( in_array( 'sr-only', $linkmod_classes, true ) ) {
-				$title         = $this->wrap_for_screen_reader( $title );
-				$keys_to_unset = array_keys( $linkmod_classes, 'sr-only', true );
-				foreach ( $keys_to_unset as $k ) {
-					unset( $linkmod_classes[ $k ] );
+			if (in_array('sr-only', $linkmod_classes, true)) {
+				$title         = $this->wrap_for_screen_reader($title);
+				$keys_to_unset = array_keys($linkmod_classes, 'sr-only', true);
+				foreach ($keys_to_unset as $k) {
+					unset($linkmod_classes[$k]);
 				}
 			}
 
 			// Put the item contents into $output.
-			$item_output .= isset( $args->link_before ) ? $args->link_before . $icon_html . $title . $args->link_after : '';
+			$item_output .= isset($args->link_before) ? $args->link_before . $icon_html . $title . $args->link_after : '';
 
 			/*
 			 * This is the end of the internal nav item. We need to close the
 			 * correct element depending on the type of link or link mod.
 			 */
-			if ( '' !== $linkmod_type ) {
+			if ('' !== $linkmod_type) {
 				// Is linkmod, output the required closing element.
-				$item_output .= $this->linkmod_element_close( $linkmod_type );
+				$item_output .= $this->linkmod_element_close($linkmod_type);
 			} else {
 				// With no link mod type set this must be a standard <a> tag.
 				$item_output .= '</a>';
 			}
 
-			$item_output .= isset( $args->after ) ? $args->after : '';
+			$item_output .= isset($args->after) ? $args->after : '';
 
 			// END appending the internal item contents to the output.
-			$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
+			$output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, $args);
 		}
 
 		/**
@@ -360,8 +360,8 @@ 
 		 * @param array $args passed from the wp_nav_menu function.
 		 * @return string|void String when echo is false.
 		 */
-		public static function fallback( $args ) {
-			if ( ! current_user_can( 'edit_theme_options' ) ) {
+		public static function fallback($args) {
+			if ( ! current_user_can('edit_theme_options')) {
 				return;
 			}
 
@@ -370,7 +370,7 @@ 
 
 			// Menu container opening tag.
 			$show_container = false;
-			if ( $args['container'] ) {
+			if ($args['container']) {
 				/**
 				 * Filters the list of HTML tags that are valid for use as menu containers.
 				 *
@@ -379,29 +379,29 @@ 
 				 * @param array $tags The acceptable HTML tags for use as menu containers.
 				 *                    Default is array containing 'div' and 'nav'.
 				 */
-				$allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) );
-				if ( is_string( $args['container'] ) && in_array( $args['container'], $allowed_tags, true ) ) {
+				$allowed_tags = apply_filters('wp_nav_menu_container_allowedtags', array('div', 'nav'));
+				if (is_string($args['container']) && in_array($args['container'], $allowed_tags, true)) {
 					$show_container   = true;
-					$class            = $args['container_class'] ? ' class="menu-fallback-container ' . esc_attr( $args['container_class'] ) . '"' : ' class="menu-fallback-container"';
-					$id               = $args['container_id'] ? ' id="' . esc_attr( $args['container_id'] ) . '"' : '';
+					$class            = $args['container_class'] ? ' class="menu-fallback-container ' . esc_attr($args['container_class']) . '"' : ' class="menu-fallback-container"';
+					$id               = $args['container_id'] ? ' id="' . esc_attr($args['container_id']) . '"' : '';
 					$fallback_output .= '<' . $args['container'] . $id . $class . '>';
 				}
 			}
 
 			// The fallback menu.
-			$class            = $args['menu_class'] ? ' class="menu-fallback-menu ' . esc_attr( $args['menu_class'] ) . '"' : ' class="menu-fallback-menu"';
-			$id               = $args['menu_id'] ? ' id="' . esc_attr( $args['menu_id'] ) . '"' : '';
+			$class            = $args['menu_class'] ? ' class="menu-fallback-menu ' . esc_attr($args['menu_class']) . '"' : ' class="menu-fallback-menu"';
+			$id               = $args['menu_id'] ? ' id="' . esc_attr($args['menu_id']) . '"' : '';
 			$fallback_output .= '<ul' . $id . $class . '>';
-			$fallback_output .= '<li class="nav-item"><a href="' . esc_url( admin_url( 'nav-menus.php' ) ) . '" class="nav-link" title="' . esc_attr__( 'Add a menu', 'wp-bootstrap-navwalker' ) . '">' . esc_html__( 'Add a menu', 'wp-bootstrap-navwalker' ) . '</a></li>';
+			$fallback_output .= '<li class="nav-item"><a href="' . esc_url(admin_url('nav-menus.php')) . '" class="nav-link" title="' . esc_attr__('Add a menu', 'wp-bootstrap-navwalker') . '">' . esc_html__('Add a menu', 'wp-bootstrap-navwalker') . '</a></li>';
 			$fallback_output .= '</ul>';
 
 			// Menu container closing tag.
-			if ( $show_container ) {
+			if ($show_container) {
 				$fallback_output .= '</' . $args['container'] . '>';
 			}
 
 			// if $args has 'echo' key and it's true echo, otherwise return.
-			if ( array_key_exists( 'echo', $args ) && $args['echo'] ) {
+			if (array_key_exists('echo', $args) && $args['echo']) {
 				// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 				echo $fallback_output;
 			} else {
@@ -417,11 +417,11 @@ 
 		 * @param  array $args The nav instance arguments.
 		 * @return array $args The altered nav instance arguments.
 		 */
-		public function add_schema_to_navbar_ul( $args ) {
-			if ( isset( $args['items_wrap'] ) ) {
+		public function add_schema_to_navbar_ul($args) {
+			if (isset($args['items_wrap'])) {
 				$wrap = $args['items_wrap'];
-				if ( strpos( $wrap, 'SiteNavigationElement' ) === false ) {
-					$args['items_wrap'] = preg_replace( '/(>).*>?\%3\$s/', ' itemscope itemtype="http://www.schema.org/SiteNavigationElement"$0', $wrap );
+				if (strpos($wrap, 'SiteNavigationElement') === false) {
+					$args['items_wrap'] = preg_replace('/(>).*>?\%3\$s/', ' itemscope itemtype="http://www.schema.org/SiteNavigationElement"$0', $wrap);
 				}
 			}
 			return $args;
@@ -445,32 +445,32 @@ 
 		 *
 		 * @return array  $classes         a maybe modified array of classnames.
 		 */
-		private function separate_linkmods_and_icons_from_classes( $classes, &$linkmod_classes, &$icon_classes, $depth ) {
+		private function separate_linkmods_and_icons_from_classes($classes, &$linkmod_classes, &$icon_classes, $depth) {
 			// Loop through $classes array to find linkmod or icon classes.
-			foreach ( $classes as $key => $class ) {
+			foreach ($classes as $key => $class) {
 				/*
 				 * If any special classes are found, store the class in it's
 				 * holder array and and unset the item from $classes.
 				 */
-				if ( preg_match( '/^disabled|^sr-only/i', $class ) ) {
+				if (preg_match('/^disabled|^sr-only/i', $class)) {
 					// Test for .disabled or .sr-only classes.
 					$linkmod_classes[] = $class;
-					unset( $classes[ $key ] );
-				} elseif ( preg_match( '/^dropdown-header|^dropdown-divider|^dropdown-item-text/i', $class ) && $depth > 0 ) {
+					unset($classes[$key]);
+				} elseif (preg_match('/^dropdown-header|^dropdown-divider|^dropdown-item-text/i', $class) && $depth > 0) {
 					/*
 					 * Test for .dropdown-header or .dropdown-divider and a
 					 * depth greater than 0 - IE inside a dropdown.
 					 */
 					$linkmod_classes[] = $class;
-					unset( $classes[ $key ] );
-				} elseif ( preg_match( '/^fa-(\S*)?|^fa(s|r|l|b)?(\s?)?$/i', $class ) ) {
+					unset($classes[$key]);
+				} elseif (preg_match('/^fa-(\S*)?|^fa(s|r|l|b)?(\s?)?$/i', $class)) {
 					// Font Awesome.
 					$icon_classes[] = $class;
-					unset( $classes[ $key ] );
-				} elseif ( preg_match( '/^glyphicon-(\S*)?|^glyphicon(\s?)$/i', $class ) ) {
+					unset($classes[$key]);
+				} elseif (preg_match('/^glyphicon-(\S*)?|^glyphicon(\s?)$/i', $class)) {
 					// Glyphicons.
 					$icon_classes[] = $class;
-					unset( $classes[ $key ] );
+					unset($classes[$key]);
 				}
 			}
 
@@ -487,19 +487,19 @@ 
 		 *
 		 * @return string                empty for default, a linkmod type string otherwise.
 		 */
-		private function get_linkmod_type( $linkmod_classes = array() ) {
+		private function get_linkmod_type($linkmod_classes = array()) {
 			$linkmod_type = '';
 			// Loop through array of linkmod classes to handle their $atts.
-			if ( ! empty( $linkmod_classes ) ) {
-				foreach ( $linkmod_classes as $link_class ) {
-					if ( ! empty( $link_class ) ) {
+			if ( ! empty($linkmod_classes)) {
+				foreach ($linkmod_classes as $link_class) {
+					if ( ! empty($link_class)) {
 
 						// Check for special class types and set a flag for them.
-						if ( 'dropdown-header' === $link_class ) {
+						if ('dropdown-header' === $link_class) {
 							$linkmod_type = 'dropdown-header';
-						} elseif ( 'dropdown-divider' === $link_class ) {
+						} elseif ('dropdown-divider' === $link_class) {
 							$linkmod_type = 'dropdown-divider';
-						} elseif ( 'dropdown-item-text' === $link_class ) {
+						} elseif ('dropdown-item-text' === $link_class) {
 							$linkmod_type = 'dropdown-item-text';
 						}
 					}
@@ -518,26 +518,26 @@ 
 		 *
 		 * @return array                 maybe updated array of attributes for item.
 		 */
-		private function update_atts_for_linkmod_type( $atts = array(), $linkmod_classes = array() ) {
-			if ( ! empty( $linkmod_classes ) ) {
-				foreach ( $linkmod_classes as $link_class ) {
-					if ( ! empty( $link_class ) ) {
+		private function update_atts_for_linkmod_type($atts = array(), $linkmod_classes = array()) {
+			if ( ! empty($linkmod_classes)) {
+				foreach ($linkmod_classes as $link_class) {
+					if ( ! empty($link_class)) {
 						/*
 						 * Update $atts with a space and the extra classname
 						 * so long as it's not a sr-only class.
 						 */
-						if ( 'sr-only' !== $link_class ) {
-							$atts['class'] .= ' ' . esc_attr( $link_class );
+						if ('sr-only' !== $link_class) {
+							$atts['class'] .= ' ' . esc_attr($link_class);
 						}
 						// Check for special class types we need additional handling for.
-						if ( 'disabled' === $link_class ) {
+						if ('disabled' === $link_class) {
 							// Convert link to '#' and unset open targets.
 							$atts['href'] = '#';
-							unset( $atts['target'] );
-						} elseif ( 'dropdown-header' === $link_class || 'dropdown-divider' === $link_class || 'dropdown-item-text' === $link_class ) {
+							unset($atts['target']);
+						} elseif ('dropdown-header' === $link_class || 'dropdown-divider' === $link_class || 'dropdown-item-text' === $link_class) {
 							// Store a type flag and unset href and target.
-							unset( $atts['href'] );
-							unset( $atts['target'] );
+							unset($atts['href']);
+							unset($atts['target']);
 						}
 					}
 				}
@@ -553,8 +553,8 @@ 
 		 * @param string $text the string of text to be wrapped in a screen reader class.
 		 * @return string      the string wrapped in a span with the class.
 		 */
-		private function wrap_for_screen_reader( $text = '' ) {
-			if ( $text ) {
+		private function wrap_for_screen_reader($text = '') {
+			if ($text) {
 				$text = '<span class="sr-only">' . $text . '</span>';
 			}
 			return $text;
@@ -570,17 +570,17 @@ 
 		 *
 		 * @return string              a string with the openign tag for the element with attribibutes added.
 		 */
-		private function linkmod_element_open( $linkmod_type, $attributes = '' ) {
+		private function linkmod_element_open($linkmod_type, $attributes = '') {
 			$output = '';
-			if ( 'dropdown-item-text' === $linkmod_type ) {
+			if ('dropdown-item-text' === $linkmod_type) {
 				$output .= '<span class="dropdown-item-text"' . $attributes . '>';
-			} elseif ( 'dropdown-header' === $linkmod_type ) {
+			} elseif ('dropdown-header' === $linkmod_type) {
 				/*
 				 * For a header use a span with the .h6 class instead of a real
 				 * header tag so that it doesn't confuse screen readers.
 				 */
 				$output .= '<span class="dropdown-header h6"' . $attributes . '>';
-			} elseif ( 'dropdown-divider' === $linkmod_type ) {
+			} elseif ('dropdown-divider' === $linkmod_type) {
 				// This is a divider.
 				$output .= '<div class="dropdown-divider"' . $attributes . '>';
 			}
@@ -596,15 +596,15 @@ 
 		 *
 		 * @return string              a string with the closing tag for this linkmod type.
 		 */
-		private function linkmod_element_close( $linkmod_type ) {
+		private function linkmod_element_close($linkmod_type) {
 			$output = '';
-			if ( 'dropdown-header' === $linkmod_type || 'dropdown-item-text' === $linkmod_type ) {
+			if ('dropdown-header' === $linkmod_type || 'dropdown-item-text' === $linkmod_type) {
 				/*
 				 * For a header use a span with the .h6 class instead of a real
 				 * header tag so that it doesn't confuse screen readers.
 				 */
 				$output .= '</span>';
-			} elseif ( 'dropdown-divider' === $linkmod_type ) {
+			} elseif ('dropdown-divider' === $linkmod_type) {
 				// This is a divider.
 				$output .= '</div>';
 			}
@@ -618,11 +618,11 @@ 
 		 *
 		 * @return array a simple array
 		 */
-		public function flatten( $array ) {
+		public function flatten($array) {
 			$result = array();
-			foreach ( $array as $element ) {
-				if ( is_array( $element ) ) {
-					array_push( $result, ...$this->flatten( $element ) );
+			foreach ($array as $element) {
+				if (is_array($element)) {
+					array_push($result, ...$this->flatten($element));
 				} else {
 					$result[] = $element;
 				}