_validator($this->field, function ($field, $params, $values) { $value = $params[$field] ?? null; if (empty($value)) { return $this->addError($field,'The param :attribute is null'); } if (!in_array($value, $values)) { return $this->addError($field,'The param :attribute value only in ' . implode(',', $values)); } return true; }, $this->params, $this->value); } }