php - 哪个孙子叫我？

Question

说我有这门课

class Grandpa
{
    public function call(){
        // Well, I want to know who calls me here
    }
}

class Father extends Grandpa
{
}

class GrandsonOne extends Father
{
}

class GrandsonTwo extends Father
{
}

现在，我从 Grandson 类中调用函数，如下所示：

GrandsonOne::call();
GrandsonTwo::call();

我怎么知道是谁打来的？

Answer 1

您正在寻找的是get_call_class函数。来自 PHP 文档：-

Gets the name of the class the static method is called in.

所以

class Grandpa
{
    public function call()
    {
        // Well, I want to know who calls me here
        echo get_called_class();
    }
}

将输出被调用类的名称。