501 	 * @param mixed $array2
505 	public static function array_merge_clobber($array1, $array2) {  argument
508 		if (!is_array($array1) || !is_array($array2)) {
512 		foreach ($array2 as $key => $val) {
524 	 * @param mixed $array2
528 	public static function array_merge_noclobber($array1, $array2) {  argument
529 		if (!is_array($array1) || !is_array($array2)) {
533 		foreach ($array2 as $key => $val) {
545 	 * @param mixed $array2
549 	public static function flipped_array_merge_noclobber($array1, $array2) {  argument
550 		if (!is_array($array1) || !is_array($array2)) {
555 		foreach (array_flip($array2) as $key => $val) {