php通过字符串名称调用类的功能(php call class function by string name)

php通过字符串名称调用类的功能(php call class function by string name)

我怎样才能通过它的名字来调用一个普通的（不是静态的）类函数？

下面给出了一个错误，说param 1需要是一个有效的回调。 我不希望函数是静态的，我希望它是一个正常的函数，到目前为止我看到的所有例子都是静态的。

class Player { public function SayHi() { print("Hi"); } } $player = new Player(); call_user_func($Player, 'SayHi');

How can I call a normal (not static) class function by its name?

The below gives an error saying param 1 needs to be a valid callback. I don't want the function to be static, I want it to be a normal function, and all the examples I've seen so far had them static.

class Player { public function SayHi() { print("Hi"); } } $player = new Player(); call_user_func($Player, 'SayHi');

最满意答案

PHP中的callback语法有点奇怪。 你需要做的是做一个数组。 第一个元素是对象，第二个是方法。

call_user_func(array($player, 'SayHi'));

您也可以在不使用call_user_func情况下执行此操作：

$player->{'SayHi'}();

要么：

$method = 'SayHi'; $player->$method();

The callback syntax is a little odd in PHP. What you need to do is make an array. The 1st element is the object, and the 2nd is the method.

call_user_func(array($player, 'SayHi'));

You can also do it without call_user_func:

$player->{'SayHi'}();

Or:

$method = 'SayHi'; $player->$method();