Notice: unserialize() [function.unserialize]

[redmeteoric]

Sometimes i get this error massage in my prestashop 1.5.6

 

Notice: unserialize() [function.unserialize]: Unexpected end of serialized data in ...../public_html/classes/cache/CacheFs.php on line 40

 

In here is my cachefs.php file (line 40 red mark):

 

 

<?php

/*

* 2007-2013 PrestaShop

*

* NOTICE OF LICENSE

*

* This source file is subject to the Open Software License (OSL 3.0)

* that is bundled with this package in the file LICENSE.txt.

* It is also available through the world-wide-web at this URL:

* http://opensource.org/licenses/osl-3.0.php

* If you did not receive a copy of the license and are unable to

* obtain it through the world-wide-web, please send an email

* to [email protected] so we can send you a copy immediately.

*

* DISCLAIMER

*

* Do not edit or add to this file if you wish to upgrade PrestaShop to newer

* versions in the future. If you wish to customize PrestaShop for your

* needs please refer to http://www.prestashop.com for more information.

*

*  @author PrestaShop SA <[email protected]>

*  @copyright  2007-2013 PrestaShop SA

*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)

*  International Registered Trademark & Property of PrestaShop SA

*/

 

class CacheFsCore extends Cache

{

/**

* @var int Number of subfolders to dispatch cached filenames

*/

protected $depth;

 

protected function __construct()

{

$this->depth = Db::getInstance()->getValue('SELECT value FROM '._DB_PREFIX_.'configuration WHERE name= \'PS_CACHEFS_DIRECTORY_DEPTH\'', false);

 

$keys_filename = $this->getFilename(self::KEYS_NAME);

if (file_exists($keys_filename))

$this->keys = unserialize(file_get_contents($keys_filename));

}

 

/**

* @see Cache::_set()

*/

protected function _set($key, $value, $ttl = 0)

{

return (@file_put_contents($this->getFilename($key), serialize($value)));

}

 

/**

* @see Cache::_get()

*/

protected function _get($key)

{

if ($this->keys[$key] > 0 && $this->keys[$key] < time())

{

$this->delete($key);

return false;

}

 

$filename = $this->getFilename($key);

if (!file_exists($filename))

{

unset($this->keys[$key]);

$this->_writeKeys();

return false;

}

$file = file_get_contents($filename);

return unserialize($file);

}

 

/**

* @see Cache::_exists()

*/

protected function _exists($key)

{

if ($this->keys[$key] > 0 && $this->keys[$key] < time())

{

$this->delete($key);

return false;

}

 

return isset($this->keys[$key]) && file_exists($this->getFilename($key));

}

 

/**

* @see Cache::_delete()

*/

protected function _delete($key)

{

$filename = $this->getFilename($key);

if (!file_exists($filename))

return true;

return unlink($filename);

}

 

/**

* @see Cache::_writeKeys()

*/

protected function _writeKeys()

{

@file_put_contents($this->getFilename(self::KEYS_NAME), serialize($this->keys));

}

 

/**

* @see Cache::flush()

*/

public function flush()

{

$this->delete('*');

return true;

}

 

/**

* Delete cache directory

*/

public static function deleteCacheDirectory()

{

Tools::deleteDirectory(_PS_CACHEFS_DIRECTORY_, false);

}

 

/**

* Create cache directory

*

* @param int $level_depth

* @param string $directory

*/

public static function createCacheDirectories($level_depth, $directory = false)

{

if (!$directory)

$directory = _PS_CACHEFS_DIRECTORY_;

$chars = '0123456789abcdef';

for ($i = 0, $length = strlen($chars); $i < $length; $i++)

{

$new_dir = $directory.$chars[$i].'/';

if (mkdir($new_dir))

if (chmod($new_dir, 0777))

if ($level_depth - 1 > 0)

CacheFs::createCacheDirectories($level_depth - 1, $new_dir);

}

}

 

/**

* Transform a key into its absolute path

*

* @param string $key

* @return string

*/

protected function getFilename($key)

{

$key = md5($key);

$path = _PS_CACHEFS_DIRECTORY_;

for ($i = 0; $i < $this->depth; $i++)

$path .= $key[$i].'/';

 

return $path.$key;

}

}

 

 

Any one can solve this?

 

Thanks

[NemoPS]

On which page are you getting this error?

[redmeteoric]

It's random sometimes either in BO or Front office. When i click refresh, the massage will disappear.

[redmeteoric]

usually i get this massage when i 'clear smarty cache"

 

Notice: unserialize() [function.unserialize]: Error at offset 16365 of 16384 bytes in ****/public_html/classes/cache/CacheFs.php on line 40

Warning: Cannot modify header information - headers already sent by (output started at ***/public_html/classes/cache/CacheFs.php:40) in ****/public_html/classes/Tools.php on line 141

 

then i click refresh and back to normal. Any one know what just happened?

Edited April 20, 2014 by redmeteoric (see edit history)

[nosnosnos]

usually i get this massage when i 'clear smarty cache"

 

 

then i click refresh and back to normal. Any one know what just happened?

I have same random error:

 

Notice: unserialize() [function.unserialize]: Error at offset 12283 of 12288 bytes in /home/proto/public_html/classes/cache/CacheFs.php on line 40

 

Warning: Cannot modify header information - headers already sent by (output started at /home/proto/public_html/classes/cache/CacheFs.php:40) in /home/proto/public_html/classes/controller/FrontController.php on line 790

 

Let me know if you solve this problem i have 1.6.0.6 last version

 

Thanks Tiz

[abbel]

You have probabily to disable xcache