mako\cache\XCache

public function __construct(array $config)
{
	parent::__construct($config['identifier']);
	
	$this->username = $config['username'];
	
	$this->password = $config['password'];
	
	if(function_exists('xcache_get') === false)
	{
		throw new RuntimeException(vsprintf("%s(): XCache is not available.", array(__METHOD__)));
	}
}

public function write($key, $value, $ttl = 0)
{
	return xcache_set("{$this->identifier}_{$key}", serialize($value), $ttl);
}

public function read($key)
{
	return unserialize(xcache_get("{$this->identifier}_{$key}"));
}

public function delete($key)
{
	return xcache_unset("{$this->identifier}_{$key}");
}

public function clear()
{
	$cleared = true;

	// Set XCache password

	$tempUsername = isset($_SERVER['PHP_AUTH_USER']) ? $_SERVER['PHP_AUTH_USER'] : false;
	$tempPassword = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : false;

	$_SERVER['PHP_AUTH_USER'] = $this->username;
	$_SERVER['PHP_AUTH_PW']   = $this->password;

	// Clear Cache

	$cacheCount = xcache_count(XC_TYPE_VAR);

	for($i = 0; $i < $cacheCount; $i++)
	{
		if(@xcache_clear_cache(XC_TYPE_VAR, $i) === false)
		{
			$cleared = false;
			break;
		}
	}

	// Reset PHP_AUTH username/password

	if($tempUsername !== false)
	{
		$_SERVER['PHP_AUTH_USER'] = $tempUsername;
	}
	else
	{
		unset($_SERVER['PHP_AUTH_USER']);
	}

	if($tempPassword !== false)
	{
		$_SERVER['PHP_AUTH_PW'] = $tempPassword;
	}
	else
	{
		unset($_SERVER['PHP_AUTH_PW']);
	}

	// Return result

	return $cleared;
}