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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
732 | * Filters the list of blocks that can contribute to the excerpt. |
733 | * |
734 | * If a dynamic block is added to this list, it must not generate another |
735 | * excerpt, as this will cause an infinite loop to occur. |
736 | * |
737 | * @since 5.0.0 |
738 | * |
739 | * @param array $allowed_blocks The list of allowed blocks. |
740 | */ |
741 | $allowed_blocks = apply_filters( 'excerpt_allowed_blocks', $allowed_blocks ); |
742 | $blocks = parse_blocks( $content ); |
743 | $output = ''; |
744 |
|
745 | foreach ( $blocks as $block ) { |
746 | if ( in_array( $block['blockName'], $allowed_blocks, true ) ) { |
747 | if ( ! empty( $block['innerBlocks'] ) ) { |
748 | if ( in_array( $block['blockName'], $allowed_wrapper_blocks, true ) ) { |
749 | $output .= _excerpt_render_inner_blocks( $block, $allowed_blocks ); |
750 | continue; |