
如何实现WordPress网站多语言版本以吸引不同语种用户
excerpt_remove_blocks ( $content )
excerpt_remove_blocks: 这个过滤器用于从自动生成的文章摘录中删除特定的块。
从一个内容字符串中解析块,并渲染那些适合摘录的内容。
由于摘录应该是一个与完整的文章内容相关的小字符串,这个函数渲染了最有可能包含这种文本的块。
function excerpt_remove_blocks( $content ) { $allowed_inner_blocks = array( // Classic blocks have their blockName set to null. null, 'core/freeform', 'core/heading', 'core/html', 'core/list', 'core/media-text', 'core/paragraph', 'core/preformatted', 'core/pullquote', 'core/quote', 'core/table', 'core/verse', ); $allowed_wrapper_blocks = array( 'core/columns', 'core/column', 'core/group', ); /** * Filters the list of blocks that can be used as wrapper blocks, allowing * excerpts to be generated from the `innerBlocks` of these wrappers. * * @since 5.8.0 * * @param string[] $allowed_wrapper_blocks The list of names of allowed wrapper blocks. */ $allowed_wrapper_blocks = apply_filters( 'excerpt_allowed_wrapper_blocks', $allowed_wrapper_blocks ); $allowed_blocks = array_merge( $allowed_inner_blocks, $allowed_wrapper_blocks ); /** * Filters the list of blocks that can contribute to the excerpt. * * If a dynamic block is added to this list, it must not generate another * excerpt, as this will cause an infinite loop to occur. * * @since 5.0.0 * * @param string[] $allowed_blocks The list of names of allowed blocks. */ $allowed_blocks = apply_filters( 'excerpt_allowed_blocks', $allowed_blocks ); $blocks = parse_blocks( $content ); $output = ''; foreach ( $blocks as $block ) { if ( in_array( $block['blockName'], $allowed_blocks, true ) ) { if ( ! empty( $block['innerBlocks'] ) ) { if ( in_array( $block['blockName'], $allowed_wrapper_blocks, true ) ) { $output .= _excerpt_render_inner_blocks( $block, $allowed_blocks ); continue; } // Skip the block if it has disallowed or nested inner blocks. foreach ( $block['innerBlocks'] as $inner_block ) { if ( ! in_array( $inner_block['blockName'], $allowed_inner_blocks, true ) || ! empty( $inner_block['innerBlocks'] ) ) { continue 2; } } } $output .= render_block( $block ); } } return $output; }