dynamic_sidebar() – Display dynamic sidebar.
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Description
Display dynamic sidebar.
By default this displays the default sidebar or 'sidebar-1'. If your theme specifies the 'id' or 'name' parameter for its registered sidebars you can pass an ID or name as the $index parameter. Otherwise, you can pass in a numerical index to display the sidebar at that index.
Usage
$bool = dynamic_sidebar( $index );
Parameters
- $index
- ( int|string ) optional default: 1 – Optional. Index, name or ID of dynamic sidebar. Default 1.
Returns
bool True, if widget sidebar was found and called. False if not found or not called.
Source
File name: wordpress/wp-includes/widgets.php
Lines:
function dynamic_sidebar( $index = 1 ) { global $wp_registered_sidebars, $wp_registered_widgets; if ( is_int( $index ) ) { $index = "sidebar-$index"; } else { $index = sanitize_title( $index ); foreach ( (array) $wp_registered_sidebars as $key => $value ) { if ( sanitize_title( $value['name'] ) === $index ) { $index = $key; break; } } } $sidebars_widgets = wp_get_sidebars_widgets(); if ( empty( $wp_registered_sidebars[ $index ] ) || empty( $sidebars_widgets[ $index ] ) || ! is_array( $sidebars_widgets[ $index ] ) ) { /** This action is documented in wp-includes/widget.php */ do_action( 'dynamic_sidebar_before', $index, false ); /** This action is documented in wp-includes/widget.php */ do_action( 'dynamic_sidebar_after', $index, false ); /** This filter is documented in wp-includes/widget.php */ return apply_filters( 'dynamic_sidebar_has_widgets', false, $index ); } $sidebar = $wp_registered_sidebars[ $index ]; $sidebar['before_sidebar'] = sprintf( $sidebar['before_sidebar'], $sidebar['id'], $sidebar['class'] ); /** * Fires before widgets are rendered in a dynamic sidebar. * * Note: The action also fires for empty sidebars, and on both the front end * and back end, including the Inactive Widgets sidebar on the Widgets screen. * * @since 3.9.0 * * @param int|string $index Index, name, or ID of the dynamic sidebar. * @param bool $has_widgets Whether the sidebar is populated with widgets. * Default true. */ do_action( 'dynamic_sidebar_before', $index, true ); if ( ! is_admin() && ! empty( $sidebar['before_sidebar'] ) ) { echo $sidebar['before_sidebar']; } $did_one = false; foreach ( (array) $sidebars_widgets[ $index ] as $id ) { if ( ! isset( $wp_registered_widgets[ $id ] ) ) { continue; } $params = array_merge( array( array_merge( $sidebar, array( 'widget_id' => $id, 'widget_name' => $wp_registered_widgets[ $id ]['name'], ) ), ), (array) $wp_registered_widgets[ $id ]['params'] ); // Substitute HTML `id` and `class` attributes into `before_widget`. $classname_ = ''; foreach ( (array) $wp_registered_widgets[ $id ]['classname'] as $cn ) { if ( is_string( $cn ) ) { $classname_ .= '_' . $cn; } elseif ( is_object( $cn ) ) { $classname_ .= '_' . get_class( $cn ); } } $classname_ = ltrim( $classname_, '_' ); $params[0]['before_widget'] = sprintf( $params[0]['before_widget'], str_replace( '\\', '_', $id ), $classname_ ); /** * Filters the parameters passed to a widget's display callback. * * Note: The filter is evaluated on both the front end and back end, * including for the Inactive Widgets sidebar on the Widgets screen. * * @since 2.5.0 * * @see register_sidebar() * * @param array $params { * @type array $args { * An array of widget display arguments. * * @type string $name Name of the sidebar the widget is assigned to. * @type string $id ID of the sidebar the widget is assigned to.