lithium\storage\session\adapter\Memory::key PHP Метод

    public static function key()
    {
        return String::uuid();
    }

 /**
  * Tests if a correct (and unique) key is loaded upon request.
  */
 public function testKey()
 {
     $key1 = Memory::key();
     $this->assertTrue($key1);
     $key2 = Memory::key();
     $this->assertNotEqual($key1, $key2);
     $pattern = '/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/';
     $this->assertPattern($pattern, Memory::key());
 }