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There actually are filters coming with WP 3.9+: do_action( 'dynamic_sidebar_before', $index, false ); do_action( 'dynamic_sidebar_after', $index, false ); apply_filters( 'dynamic_sidebar_has_widgets', false, $index ); The 2nd argument indicates if the sidebar has widgets. Current workaround: Hook into sanitize_title() as this will hold the current ...


is_active_sidebar has a single value, whether it is the sideabar id or name. If you have more than one sidebar, you should repeat is_active_sidebar, each one with a specific sidebar id or name. You would do something like this <?php if ( is_active_sidebar( 'available-course-list-1' ) && is_active_sidebar( 'available-course-list-2' )) : ?>


To quote the Codex The return value should be used to determine whether to display a static sidebar. This ensures that your theme will look good even when the Widgets plug-in is not active. So essentially you can use is to display other content if the user has not activated any widgets in the sidebar.


Install metabox plugin and active: /**** Add this code in your function.php ****/ $meta_boxes[] = array( 'id' => 'post_sidebar', 'title' => 'post Sidebar', 'pages' => array('post'), 'priority' => 'low', 'fields' => array( array( 'name' => 'Post ...

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