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1 <?php 2 /** 3 * Server-side rendering of the `core/comments-pagination-previous` block. 4 * 5 * @package WordPress 6 */ 7 8 /** 9 * Renders the `core/comments-pagination-previous` block on the server. 10 * 11 * @param array $attributes Block attributes. 12 * @param string $content Block default content. 13 * @param WP_Block $block Block instance. 14 * 15 * @return string Returns the previous posts link for the comments pagination. 16 */ 17 function render_block_core_comments_pagination_previous( $attributes, $content, $block ) { 18 $default_label = __( 'Older Comments' ); 19 $label = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? $attributes['label'] : $default_label; 20 $pagination_arrow = get_comments_pagination_arrow( $block, 'previous' ); 21 if ( $pagination_arrow ) { 22 $label = $pagination_arrow . $label; 23 } 24 25 $filter_link_attributes = function() { 26 return get_block_wrapper_attributes(); 27 }; 28 add_filter( 'previous_comments_link_attributes', $filter_link_attributes ); 29 30 $previous_comments_link = get_previous_comments_link( $label ); 31 32 remove_filter( 'previous_comments_link_attributes', $filter_link_attributes ); 33 34 if ( ! isset( $previous_comments_link ) ) { 35 return ''; 36 } 37 38 return $previous_comments_link; 39 } 40 41 /** 42 * Registers the `core/comments-pagination-previous` block on the server. 43 */ 44 function register_block_core_comments_pagination_previous() { 45 register_block_type_from_metadata( 46 __DIR__ . '/comments-pagination-previous', 47 array( 48 'render_callback' => 'render_block_core_comments_pagination_previous', 49 ) 50 ); 51 } 52 add_action( 'init', 'register_block_core_comments_pagination_previous' );
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