Compare arrays (unique values) in PHP

/**
 * Compares arrays (unique values).
 *
 * @see https://wpcodebook.com/compare-arrays-unique-values-php/
 */
function wpcodebook_compare_arrays( $array1, $array2 ) {
	$array1 = array_unique( $array1 );
	$array2 = array_unique( $array2 );
	return (
		count( $array1 ) === count( $array2 ) &&
		! array_diff( $array1, $array2 )
	);
}