PHP code example of wp-php-toolkit / blockparser

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

wp-php-toolkit / blockparser example snippets

ument = "<!-- wp:heading {\"level\":2} -->\n<h2>Welcome</h2>\n<!-- /wp:heading -->\n\n"
	. "<!-- wp:paragraph -->\n<p>Hello from the block editor.</p>\n<!-- /wp:paragraph -->";

$blocks = ( new WP_Block_Parser() )->parse( $document );
foreach ( $blocks as $block ) {
	if ( null === $block['blockName'] ) {
		continue;
	}
	echo $block['blockName'] . ': ' . trim( strip_tags( $block['innerHTML'] ) ) . "\n";
}

ument = "<!-- wp:group --><div class=\"wp-block-group\">"
	. "<!-- wp:heading --><h2>Title</h2><!-- /wp:heading -->"
	. "<!-- wp:paragraph --><p>One.</p><!-- /wp:paragraph -->"
	. "<!-- wp:paragraph --><p>Two.</p><!-- /wp:paragraph -->"
	. "<!-- wp:image {\"id\":1} --><figure><img src=\"a.jpg\"/></figure><!-- /wp:image -->"
	. "</div><!-- /wp:group -->";

$blocks = ( new WP_Block_Parser() )->parse( $document );

$counts = array();
$queue  = $blocks;

while ( ! empty( $queue ) ) {
	$block = array_shift( $queue );

	if ( null !== $block['blockName'] ) {
		$name             = $block['blockName'];
		$counts[ $name ] = isset( $counts[ $name ] ) ? $counts[ $name ] + 1 : 1;
	}

	foreach ( $block['innerBlocks'] as $inner_block ) {
		$queue[] = $inner_block;
	}
}

arsort( $counts );
foreach ( $counts as $name => $n ) {
	echo str_pad( (string) $n, 4, ' ', STR_PAD_LEFT ) . '  ' . $name . "\n";
}

ument = "<!-- wp:group --><div class=\"wp-block-group\">"
	. "<!-- wp:buttons --><div class=\"wp-block-buttons\">"
	. "<!-- wp:button --><div class=\"wp-block-button\"><a>Buy now</a></div><!-- /wp:button -->"
	. "</div><!-- /wp:buttons -->"
	. "</div><!-- /wp:group -->";

$blocks = ( new WP_Block_Parser() )->parse( $document );

function post_has_block( $blocks, $name ) {
	$queue = $blocks;

	while ( ! empty( $queue ) ) {
		$block = array_shift( $queue );
		if ( $name === $block['blockName'] ) {
			return true;
		}

		foreach ( $block['innerBlocks'] as $inner_block ) {
			$queue[] = $inner_block;
		}
	}

	return false;
}

echo post_has_block( $blocks, 'core/button' ) ? "has button\n" : "missing button\n";
echo post_has_block( $blocks, 'core/gallery' ) ? "has gallery\n" : "missing gallery\n";

ument = "<!-- wp:heading -->\n<h2>Intro</h2>\n<!-- /wp:heading -->"
	. "<!-- wp:heading {\"level\":4} -->\n<h4>Subsection</h4>\n<!-- /wp:heading -->"
	. "<!-- wp:heading {\"level\":3} -->\n<h3>Body</h3>\n<!-- /wp:heading -->";

$blocks = ( new WP_Block_Parser() )->parse( $document );

function collect_headings( $blocks, &$headings ) {
	foreach ( $blocks as $block ) {
		if ( 'core/heading' === $block['blockName'] ) {
			$headings[] = array(
				'level' => isset( $block['attrs']['level'] ) ? (int) $block['attrs']['level'] : 2,
				'text'  => trim( strip_tags( $block['innerHTML'] ) ),
			);
		}

		collect_headings( $block['innerBlocks'], $headings );
	}
}

$headings = array();
collect_headings( $blocks, $headings );

$last = 1;
foreach ( $headings as $heading ) {
	$level = $heading['level'];
	$label = $heading['text'];

	if ( $level > $last + 1 ) {
		echo "WARN {$label}: jumped from H{$last} to H{$level}\n";
	} else {
		echo "ok   {$label}: H{$level}\n";
	}
	$last = $level;
}

ument = "<!-- wp:paragraph --><p>Reviews</p><!-- /wp:paragraph -->"
	. "<!-- wp:my-plugin/testimonial {\"author\":\"Jane\",\"rating\":5} -->"
	. "<blockquote>Loved it.</blockquote>"
	. "<!-- /wp:my-plugin/testimonial -->"
	. "<!-- wp:my-plugin/testimonial {\"author\":\"Joe\",\"rating\":4} -->"
	. "<blockquote>Pretty good.</blockquote>"
	. "<!-- /wp:my-plugin/testimonial -->";

$blocks = ( new WP_Block_Parser() )->parse( $document );

function find_blocks_by_name( $blocks, $name, &$matches ) {
	foreach ( $blocks as $block ) {
		if ( $name === $block['blockName'] ) {
			$matches[] = $block;
		}

		find_blocks_by_name( $block['innerBlocks'], $name, $matches );
	}
}

$testimonials = array();
find_blocks_by_name( $blocks, 'my-plugin/testimonial', $testimonials );

foreach ( $testimonials as $i => $b ) {
	echo ( $i + 1 ) . '. ' . $b['attrs']['author'] . ' (' . $b['attrs']['rating'] . '/5): '
		. trim( strip_tags( $b['innerHTML'] ) ) . "\n";
}

ument = <<<'HTML'
<!-- wp:embed {"url":"https://twitter.com/wordpress/status/1","providerNameSlug":"twitter"} /-->
<!-- wp:embed {"url":"https://youtube.com/watch?v=abc","providerNameSlug":"youtube"} /-->
<!-- wp:embed {"url":"https://vine.co/v/xyz","providerNameSlug":"vine"} /-->
HTML;

$retired = array( 'vine.co', 'plus.google.com' );

foreach ( ( new WP_Block_Parser() )->parse( $document ) as $b ) {
	if ( 'core/embed' !== $b['blockName'] ) {
		continue;
	}
	$url  = isset( $b['attrs']['url'] ) ? $b['attrs']['url'] : '';
	$host = parse_url( $url, PHP_URL_HOST );
	$bad  = $host && in_array( $host, $retired, true );
	echo ( $bad ? 'STALE  ' : 'ok     ' ) . $url . "\n";
}