Returns the content of a block, including comment delimiters, serializing all attributes from the given parsed block.

Description

This should be used when preparing a block to be saved to post content.
Prefer render_block when preparing a block for display. Unlike render_block, this does not evaluate a block’s render_callback, and will instead preserve the markup as parsed.

Parameters

$blockarrayrequired

An associative array of a single parsed block object. See WP_Block_Parser_Block.

• blockName string
  Name of block.
• attrs array
  Attributes from block comment delimiters.
• innerBlocks array[]
  List of inner blocks. An array of arrays that have the same structure as this one.
• innerHTML string
  HTML from inside block comment delimiters.
• innerContent array
  List of string fragments and null markers where inner blocks were found.

Return

Source

function serialize_block( $block ) {
	$block_content = '';

	$index = 0;
	foreach ( $block['innerContent'] as $chunk ) {
		$block_content .= is_string( $chunk ) ? $chunk : serialize_block( $block['innerBlocks'][ $index++ ] );
	}

	if ( ! is_array( $block['attrs'] ) ) {
		$block['attrs'] = array();
	}

	return get_comment_delimited_block_content(
		$block['blockName'],
		$block['attrs'],
		$block_content
	);
}

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