public function __construct()
 {
     parent::__construct(function ($value) {
         if (is_object($value)) {
             return $value->__toString();
         } elseif (is_string($value)) {
             return $value;
         } elseif (is_array($value)) {
             return implode(',', $value);
         }
         return "{$value}";
     });
 }
Beispiel #2
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 public function __construct()
 {
     parent::__construct(null);
 }