执行数组中列出的方法

Question

我有一个类,其属性和方法类似于下面显示的代码,只是更复杂.我们的想法是在调度数组中调用一个元素,然后为该元素列出的方法将按列出的顺序执行.我坚持如何获取执行方法(请参阅名为execute()的方法).这甚至可能吗？

请注意,在构造函数中调用setDispatch(),该代码未在下面的代码中显示.

// attribute
private $_dispatch = [];

// methods
public function execute()
{
  $dispatch = $this->getDispatch();
  // NEED LOGIC HERE THAT EXECUTES METHODS LISTED IN $dispatch['A']
}

private function setDispatch()
{
  $this->_dispatch = [
    'A' => [
        'method1',
        'method2',
        'method3'
    ],
    'B' => [
        'method4',
        'method3',
        'method1'
    ]
  ];
}
  
private function getDispatch()
{
  return $this->_dispatch;
}

private function method1()
{
  //do something
}

private function method2()
{
  //do something
}

private function method3()
{
  //do something
}

private function method4()
{
  //do something
}

Answer 1

我相信你会喜欢call_user_func和php调用类函数的字符串名称

请记住,call_user_func将不会像您的情况那样工作,并且您需要使用回调语法,这意味着方法名称应该在包含对象链接的数组中:[$object, $methodName]

// attribute
private $_dispatch = [];

// methods
public function execute()
{
  $dispatch = $this->getDispatch();
  foreach($dispatch['A'] as $methodName){
    call_user_func([$this, $methodName]);
  }
}

private function setDispatch()
{
  $this->_dispatch = [
    'A' => [
        'method1',
        'method2',
        'method3'
    ],
    'B' => [
        'method4',
        'method3',
        'method1'
    ]
  ];
}

private function getDispatch()
{
  return $this->_dispatch;
}

private function method1()
{
  //do something
}

private function method2()
{
  //do something
}

private function method3()
{
  //do something
}

private function method4()
{
  //do something
}