46      * @param array $array
49     public static function filterArrayByKey(array &$array, $pattern)  argument
51         foreach ($array as $key => &$value) {
53                 unset($array[$key]);
61     public static function addIfNotSet(array &$array, $key, $value)  argument
63         if (!isset($array[$key])) {
64             $array[$key] = $value;
74     public static function array_key_last(&$array)  argument
77         end($array);
78         $key = key($array);
80         reset($array);
109     public static function formatAsString(array $array): string  argument
111         return Json::createFromArray($array)->toPrettyJsonString();