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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);
}
}