php判断继承类有没有对指定方法重写

   
   use ReflectionClass;
    
    public function __construct()
    {
     
        $reflectClass             = new ReflectionClass($this);
         
        //必须重写的方法
        $requiredOverwriteMethods = [
            'isCurrentLimit',
            'genCacheKey',
            'really',
        ];
         
        foreach ($requiredOverwriteMethods as $method) {
            if ($reflectClass->getMethod($method)->getDeclaringClass()->getName() !== $reflectClass->getName()) {
                throw new \Exception('继承：'.__CLASS__.'的子类必须重写方法：'.$method);
            }
        }
        unset($method);
         
    }