PHP（OOP）：如何在每个方法中调用一个新方法

Question

Let's say I have a Class

<?php

class MyClass extends OtherClass
{
    public function foo()
    {
    // some stuff
    }
    public function bar()
    {
    // some stuff
    }
    public function baz()
    {
    // some stuff
    }
}

Now I need to add another method, that need to be called from every other method.

private function run_this()
{
$mandatary = true;
return $mandatary;
}

I can add a simple $this->run_this() in every method, OK, but is it possible to add some "magic" recipient to invoke run_this() from every method of this class?

Answer 1

Not entirely sure what you want, but if you want it availabe to all child objects I would put it in other class as a protected function. That way only child objects have access to it.

class OtherClass {
protected function run_this()
    {
    $mandatary = true;
    return $mandatary;
    }
}

class MyClass extends OtherClass
{
    public function foo()
    {
    $mandatory = $this->run_this();
    // some stuff
    }
    public function bar()
    {
    $mandatory = $this->run_this();
    // some stuff
    }
    public function baz()
    {
    $mandatory = $this->run_this();
    // some stuff
    }
}