从另一个类PHP调用函数中的函数 [英] Call function in function from another class PHP

问题描述

我在Stackoverflow上阅读了一些有关抽象类的线程，我认为这是我需要的，但我不能直接声明。

I have read a few threads about abstract class here at Stackoverflow and I think it's what I need, but I can't get the declaration straight.

想要做的是在函数1 （在类A中）中调用 function2 （在类B中）。

What I want to do is to call a function2 (in classB) in a function1 (in classA).

我该如何做？

推荐答案

从ClassA访问ClassB的方法，但两者之间不需要父子关系，静态方法可能更合适：

If you only need to access ClassB's method from ClassA but don't need a parent-child relationship between the two, a static method may be more appropriate:

class ClassA
{
  public function method1() {
    echo ClassB::method2();
  }
}

class ClassB
{
  public static function method2() {
    return 'WOOT!';
  }
}

$cls_a = new ClassA();
$cls_a->method1();

// or alternatively, you don't even need to instantiate ClassA
echo ClassB::method2();

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