WPSEO_Sitemap_Image_Parser::parse_html_images() │ private │ Yoast 1.0

Parse <img /> tags in content.

Метод класса: WPSEO_Sitemap_Image_Parser{}

Хуков нет.

Возвращает

Массив.

Использование

// private - только в коде основоного (родительского) класса
$result = $this->parse_html_images( $content );

$content(строка) (обязательный)

Content string to parse.

Код WPSEO_Sitemap_Image_Parser::parse_html_images() WPSEO Sitemap Image Parser::parse html images ^{Yoast 22.4}

private function parse_html_images( $content ) {

	$images = [];

	if ( ! class_exists( 'DOMDocument' ) ) {
		return $images;
	}

	if ( empty( $content ) ) {
		return $images;
	}

	// Prevent DOMDocument from bubbling warnings about invalid HTML.
	libxml_use_internal_errors( true );

	$post_dom = new DOMDocument();
	$post_dom->loadHTML( '<?xml encoding="' . $this->charset . '">' . $content );

	// Clear the errors, so they don't get kept in memory.
	libxml_clear_errors();

	/**
	 * Image attribute.
	 *
	 * @var DOMElement $img
	 */
	foreach ( $post_dom->getElementsByTagName( 'img' ) as $img ) {

		$src = $img->getAttribute( 'src' );

		if ( empty( $src ) ) {
			continue;
		}

		$class = $img->getAttribute( 'class' );

		if ( // This detects WP-inserted images, which we need to upsize. R.
			! empty( $class )
			&& ( strpos( $class, 'size-full' ) === false )
			&& preg_match( '|wp-image-(?P<id>\d+)|', $class, $matches )
			&& get_post_status( $matches['id'] )
		) {
			$query_params = wp_parse_url( $src, PHP_URL_QUERY );
			$src          = $this->image_url( $matches['id'] );

			if ( $query_params ) {
				$src .= '?' . $query_params;
			}
		}

		$src = $this->get_absolute_url( $src );

		if ( strpos( $src, $this->host ) === false ) {
			continue;
		}

		if ( $src !== esc_url( $src, null, 'attribute' ) ) {
			continue;
		}

		$images[] = [
			'src'   => $src,
		];
	}

	return $images;
}