Input Class - Strip Slashes for Magic Quotes

class Input
{
	static public function check_magic_quotes()
	{
		if (get_magic_quotes_gpc())
		{
			$_GET = Input::fix_slashes($_GET);
			$_POST = Input::fix_slashes($_POST);
			$_SERVER = Input::fix_slashes($_SERVER);
		}
	}
 
	static public function fix_slashes($arr)
	{
		if (is_array($arr))
		{
			foreach ($arr as $k => $v)
			{
				$arr[$k] = is_array($v) ? Input::fix_slashes($v) : stripslashes($v);
			}
			return $arr;
		}
		else
		{
			return stripslashes($arr);
		}
	}
 
	static public function get($key = '', $default = null)
	{
		return isset($_GET[$key]) ? $_GET[$key] : $default;
	}
 
	static public function post($key = '', $default = null)
	{
		return isset($_POST[$key]) ? $_POST[$key] : $default;
	}
 
	static public function cookie($key = '', $default = null)
	{
		return isset($_COOKIE[$key]) ? $_COOKIE[$key] : $default;
	}
 
	static public function server($key = '', $default = null)
	{
		return isset($_SERVER[$key]) ? $_SERVER[$key] : $default;
	}
 
	static public function session($key = '', $default = null)
	{
		return isset($_SESSION[$key]) ? $_SESSION[$key] : $default;
	}
}