TypeValidator.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Validator\Constraints;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

/**
 * @author Bernhard Schussek <bschussek@gmail.com>
 *
 * @api
 */
class TypeValidator extends ConstraintValidator {

  /**
   * {@inheritDoc}
   */
  public function validate($value, Constraint $constraint) {
    if (null === $value) {
      return;
    }
    $type = strtolower($constraint->type);
    $type = $type == 'boolean' ? 'bool' : $constraint->type;
    $isFunction = 'is_' . $type;
    $ctypeFunction = 'ctype_' . $type;
    if (function_exists($isFunction) && call_user_func($isFunction, $value)) {
      return;
    }
    elseif (function_exists($ctypeFunction) && call_user_func($ctypeFunction, $value)) {
      return;
    }
    elseif ($value instanceof $constraint->type) {
      return;
    }
    $this->context
      ->addViolation($constraint->message, array(
      '{{ value }}' => is_object($value) ? get_class($value) : (is_array($value) ? 'Array' : (string) $value),
      '{{ type }}' => $constraint->type,
    ));
  }

}