kohana cache using apc if available

gistfile1.php

public static function cache($name, $data = NULL, $lifetime = NULL)
  {
		if (function_exists('apc_store'))
			return self::_apc_cache($name, $data, $lifetime);

		return parent::cache($name, $data, $lifetime);
	}

	protected static function _apc_cache($name, $data = NULL, $lifetime = NULL)
	{
		if ($data === NULL)
		{
			$success = FALSE;
			$val = apc_fetch($name, $success);

			if ($success)
				return unserialize($val);
			else
				return NULL;
		}

		return (bool) apc_store($name, serialize($data), $lifetime);
	}