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DataCollector.php
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<?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; use Symfony\Component\HttpKernel\DataCollector\Util\ValueExporter; /** * DataCollector. * * Children of this class must store the collected data in the data property. * * @author Fabien Potencier <fabien@symfony.com> * @author Bernhard Schussek <bschussek@symfony.com> */ abstract class DataCollector implements DataCollectorInterface, \Serializable { protected $data; /** * @var ValueExporter */ private $valueExporter; public function serialize() { return serialize($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 (null === $this->valueExporter) { $this->valueExporter = new ValueExporter(); } return $this->valueExporter->exportValue($var); } }