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}";
});
}
public function __construct()
{
parent::__construct(null);
}