Yoast\WP\SEO\Images\Application

Image_Content_Extractor::extract_id_of_classes │ protected │ Yoast 1.0

Extracts image ID out of the image's classes.

Метод класса: Image_Content_Extractor{}

Возвращает

int. The ID that's extracted from the classes.

Использование

// protected - в коде основоного (родительского) или дочернего класса
$result = $this->extract_id_of_classes( $classes );

$classes(строка) (обязательный)

The classes assigned to the image.

Код Image_Content_Extractor::extract_id_of_classes() Image Content Extractor::extract id of classes ^{Yoast 28.6}

protected function extract_id_of_classes( $classes ) {
	if ( ! $classes ) {
		return 0;
	}

	/**
	 * Filter 'wpseo_extract_id_pattern' - Allows filtering the regex patern to be used to extract image IDs from class/attribute names.
	 *
	 * Defaults to the pattern that extracts image IDs from core's `wp-image-<ID>` native format in image classes.
	 *
	 * @api string The regex pattern to be used to extract image IDs from class names. Empty string if the whole class/attribute should be returned.
	 */
	$pattern = \apply_filters( 'wpseo_extract_id_pattern', '/(?<!\S)wp-image-(\d+)(?!\S)/i' );

	if ( $pattern === '' ) {
		return (int) $classes;
	}

	$matches = [];

	if ( \preg_match( $pattern, $classes, $matches ) ) {

		return (int) $matches[1];
	}

	return 0;
}