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Description

Determines whether a sidebar contains widgets.

For more information on this and similar theme functions, check out the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ Conditional Tags} article in the Theme Developer Handbook.

Usage

$bool = is_active_sidebar( $index );

Parameters

$index

( string|int ) required – Sidebar name, id or number to check.

Returns

bool True if the sidebar has widgets, false otherwise.

Source

File name: wordpress/wp-includes/widgets.php
Lines:

function is_active_sidebar( $index ) {
  $index             = ( is_int( $index ) ) ? "sidebar-$index" : sanitize_title( $index );
  $sidebars_widgets  = wp_get_sidebars_widgets();
  $is_active_sidebar = ! empty( $sidebars_widgets[ $index ] );

  
/**
 * Filters whether a dynamic sidebar is considered "active".
 *
 * @since 3.9.0
 *
 * @param bool       $is_active_sidebar Whether or not the sidebar should be considered "active".
 *                                      In other words, whether the sidebar contains any widgets.
 * @param int|string $index             Index, name, or ID of the dynamic sidebar.
 */
  return apply_filters( 'is_active_sidebar', $is_active_sidebar, $index );
}
 

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