DataCollector.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\HttpKernel\DataCollector;


/**
 * DataCollector.
 *
 * Children of this class must store the collected data in the data property.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
abstract class DataCollector implements DataCollectorInterface, \Serializable {
  protected $data;
  public function serialize() {
    return serialize($this->data);
  }
  public function unserialize($data) {
    $this->data = unserialize($data);
  }

  /**
   * Converts a PHP variable to a string.
   *
   * @param mixed $var A PHP variable
   *
   * @return string The string representation of the variable
   */
  protected function varToString($var) {
    if (is_object($var)) {
      return sprintf('Object(%s)', get_class($var));
    }
    if (is_array($var)) {
      $a = array();
      foreach ($var as $k => $v) {
        $a[] = sprintf('%s => %s', $k, $this
          ->varToString($v));
      }
      return sprintf("Array(%s)", implode(', ', $a));
    }
    if (is_resource($var)) {
      return sprintf('Resource(%s)', get_resource_type($var));
    }
    if (null === $var) {
      return 'null';
    }
    if (false === $var) {
      return 'false';
    }
    if (true === $var) {
      return 'true';
    }
    return (string) $var;
  }

}