* @return mixed
* The value found.
*/
+ /**
+ * @param $regexKey
+ * @param $list
+ * @param null $default
+ *
+ * @return null
+ */
static function valueByRegexKey($regexKey, $list, $default = NULL) {
if (is_array($list) && $regexKey) {
$matches = preg_grep($regexKey, array_keys($list));