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<?php
declare(strict_types=1);
namespace Yiisoft\Validator\Rule;
use Yiisoft\Validator\Exception\CallbackRuleException;
use Yiisoft\Validator\Rule;
use Yiisoft\Validator\Result;
use Yiisoft\Validator\DataSetInterface;
class Callback extends Rule
{
/**
* @var callable
*/
private $callback;
public function __construct(callable $callback)
$this->callback = $callback;
}
protected function validateValue($value, DataSetInterface $dataSet = null): Result
$callback = $this->callback;
$callbackResult = $callback($value, $dataSet);
if (!$callbackResult instanceof Result) {
throw new CallbackRuleException($callbackResult);
$result = new Result();
if ($callbackResult->isValid() === false) {
foreach ($callbackResult->getErrors() as $message) {
$result->addError($this->translateMessage($message));
return $result;
public function getName(): string
return 'callback';
yiisoft /
validator
