WP_HTML_Tag_Processor::has_class( string $wanted_class ): bool|null

Returns if a matched tag contains the given ASCII case-insensitive class name.

Parameters

$wanted_classstringrequired: Look for this CSS class name, ASCII case-insensitive.

Return

bool|null Whether the matched tag contains the given class name, or null if not matched.

Source

public function has_class( $wanted_class ): ?bool {
	if ( self::STATE_MATCHED_TAG !== $this->parser_state ) {
		return null;
	}

	$case_insensitive = self::QUIRKS_MODE === $this->compat_mode;

	$wanted_length = strlen( $wanted_class );
	foreach ( $this->class_list() as $class_name ) {
		if (
			strlen( $class_name ) === $wanted_length &&
			0 === substr_compare( $class_name, $wanted_class, 0, strlen( $wanted_class ), $case_insensitive )
		) {
			return true;
		}
	}

	return false;
}

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Uses	Description
WP_HTML_Tag_Processor::class_list()`wp-includes/html-api/class-wp-html-tag-processor.php`	Generator for a foreach loop to step through each class name for the matched tag.

Used by	Description
WP_HTML_Processor::has_class()`wp-includes/html-api/class-wp-html-processor.php`	Returns if a matched tag contains the given ASCII case-insensitive class name.
WP_HTML_Tag_Processor::matches()`wp-includes/html-api/class-wp-html-tag-processor.php`	Checks whether a given tag and its attributes match the search criteria.

Changelog

Version	Description
6.4.0	Introduced.

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