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<?php/**
 * Server-side rendering of the `core/widget-group` block.
 *
 * @package WordPress
 */
 
 /**
 * Renders the 'core/widget-group' block.
 *
 * @since 5.9.0
 *
 * @global array      $wp_registered_sidebars
 * @global int|string $_sidebar_being_rendered
 *
 * @param array    $attributes The block attributes.
 * @param string   $content The block content.
 * @param WP_Block $block The block.
 *
 * @return string Rendered block.
 */
 function render_block_core_widget_group( $attributes, $content, $block ) {
 global $wp_registered_sidebars, $_sidebar_being_rendered;
 
 if ( isset( $wp_registered_sidebars[ $_sidebar_being_rendered ] ) ) {
 $before_title = $wp_registered_sidebars[ $_sidebar_being_rendered ]['before_title'];
 $after_title  = $wp_registered_sidebars[ $_sidebar_being_rendered ]['after_title'];
 } else {
 $before_title = '<h2 class="widget-title">';
 $after_title  = '</h2>';
 }
 
 $html = '';
 
 if ( ! empty( $attributes['title'] ) ) {
 $html .= $before_title . esc_html( $attributes['title'] ) . $after_title;
 }
 
 $html .= '<div class="wp-widget-group__inner-blocks">';
 foreach ( $block->inner_blocks as $inner_block ) {
 $html .= $inner_block->render();
 }
 $html .= '</div>';
 
 return $html;
 }
 
 /**
 * Registers the 'core/widget-group' block.
 *
 * @since 5.9.0
 */
 function register_block_core_widget_group() {
 register_block_type_from_metadata(
 __DIR__ . '/widget-group',
 array(
 'render_callback' => 'render_block_core_widget_group',
 )
 );
 }
 
 add_action( 'init', 'register_block_core_widget_group' );
 
 /**
 * Make a note of the sidebar being rendered before WordPress starts rendering
 * it. This lets us get to the current sidebar in
 * render_block_core_widget_group().
 *
 * @since 5.9.0
 *
 * @global int|string $_sidebar_being_rendered
 *
 * @param int|string $index       Index, name, or ID of the dynamic sidebar.
 */
 function note_sidebar_being_rendered( $index ) {
 global $_sidebar_being_rendered;
 $_sidebar_being_rendered = $index;
 }
 add_action( 'dynamic_sidebar_before', 'note_sidebar_being_rendered' );
 
 /**
 * Clear whatever we set in note_sidebar_being_rendered() after WordPress
 * finishes rendering a sidebar.
 *
 * @since 5.9.0
 *
 * @global int|string $_sidebar_being_rendered
 */
 function discard_sidebar_being_rendered() {
 global $_sidebar_being_rendered;
 unset( $_sidebar_being_rendered );
 }
 add_action( 'dynamic_sidebar_after', 'discard_sidebar_being_rendered' );
 
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