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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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143 | if ( $args->container ) { |
144 | /** |
145 | * Filters the list of HTML tags that are valid for use as menu containers. |
146 | * |
147 | * @since 3.0.0 |
148 | * |
149 | * @param array $tags The acceptable HTML tags for use as menu containers. |
150 | * Default is array containing 'div' and 'nav'. |
151 | */ |
152 | $allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) ); |
153 | if ( is_string( $args->container ) && in_array( $args->container, $allowed_tags ) ) { |
154 | $show_container = true; |
155 | $class = $args->container_class ? ' class="' . esc_attr( $args->container_class ) . '"' : ' class="menu-'. $menu->slug .'-container"'; |
156 | $id = $args->container_id ? ' id="' . esc_attr( $args->container_id ) . '"' : ''; |
157 | $nav_menu .= '<'. $args->container . $id . $class . '>'; |
158 | } |
159 | } |
160 |
|
161 | // Set up the $menu_item variables |