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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Serializer\Adapter;
use Zend\Serializer\Exception;
use Zend\Stdlib\ErrorHandler;
class IgBinary extends AbstractAdapter
{
/**
* @var string Serialized null value
*/
private static $serializedNull = null;
/**
* Constructor
*
* @throws Exception\ExtensionNotLoadedException If igbinary extension is not present
*/
public function __construct($options = null)
{
if (! extension_loaded('igbinary')) {
throw new Exception\ExtensionNotLoadedException(
'PHP extension "igbinary" is required for this adapter'
);
}
if (static::$serializedNull === null) {
static::$serializedNull = igbinary_serialize(null);
}
parent::__construct($options);
}
/**
* Serialize PHP value to igbinary
*
* @param mixed $value
* @return string
* @throws Exception\RuntimeException on igbinary error
*/
public function serialize($value)
{
ErrorHandler::start();
$ret = igbinary_serialize($value);
$err = ErrorHandler::stop();
if ($ret === false) {
throw new Exception\RuntimeException('Serialization failed', 0, $err);
}
return $ret;
}
/**
* Deserialize igbinary string to PHP value
*
* @param string $serialized
* @return mixed
* @throws Exception\RuntimeException on igbinary error
*/
public function unserialize($serialized)
{
if ($serialized === static::$serializedNull) {
return;
}
ErrorHandler::start();
$ret = igbinary_unserialize($serialized);
$err = ErrorHandler::stop();
if ($ret === null) {
throw new Exception\RuntimeException('Unserialization failed', 0, $err);
}
return $ret;
}
}