get_called_class() $this object

Question

How to I get the object $this of that class where the current function was called from?

class a extends zebra {
  function xyz() {
     ...
     b::somestaticmethod();
  }
}

class b {
  public static function somestaticmethod() {
    $callerObj = get_called_class();
  }
}

The function get_called_class() fetches the name of the calling class in string format. What I am looking for is that, is there a way to get the object ($this) from the context of the calling class, just like what would have happened if $this was passed as an argument as below.

b::somestaticmethod($this);

Why?

I am planning to implement a polymorphic behavior on the somestaticmethod() method, which will check the calling class and based on the ancestor of that class guide the logic further.

To clarify, you don't want just the class name but the actual object of the called class? — Script47, Jun 23 '18 at 22:02
Yup thats **exactly** what I am looking for. ....The whole object with all the inheritance and everything, without actually passing it as an argument. — Mohd Abdul Mujib, Jun 23 '18 at 22:03
I'm not sure if such a thing exists however, why don't you just pass `$this` as a parameter? — Script47, Jun 23 '18 at 22:05
Yeah I have currently implemented it as you are suggesting, but then I was looking for a way to independently get the object without the need to pass the object, which (passing the object manually) doesn't give me a concrete guarantee that exactly `$this` was passed and not some other object. Just like the analogy of why use `get_called_class()` when you can just pass the class name from the calling class :) hope you get my point. — Mohd Abdul Mujib, Jun 23 '18 at 22:08
This is the only other thing I could find: https://stackoverflow.com/questions/1093101/php-classes-get-access-to-the-calling-instance-from-the-called-method - and they all seem to be passing parameters from what I could tell from a quick glance. — Script47, Jun 23 '18 at 22:10
https://stackoverflow.com/questions/190421/caller-function-in-php-5 — Mr Glass, Jun 23 '18 at 22:11
Thanks peeps, im gonna go through these resources real quick :) — Mohd Abdul Mujib, Jun 23 '18 at 22:13
@MrGlass does that return the calling object? That is the key part of this question. — Script47, Jun 23 '18 at 22:13

score 0 · Answer 1 · answered Jun 23 '18 at 23:02

Reflection seems to work with inheritance and static class properties

<?php

class a {
  public static function x() {
    $callerObj = get_called_class();
    return new ReflectionClass($callerObj); 
  }
}

class b extends a {
    public static $y = [0, 1, 2];

    public static function z() {
        return parent::x()->getProperty('y')->getValue();
    }
}

print_r(b::z());
array_push(b::$y, 3);
print_r(b::z());

get_called_class() $this object

1 Answers1