gistfile1.txt

<?php

class Foo {

    public function this($param) {
        // $this->bar is object Bar
        return $this->bar->this($param);
    }

    public function that($param) {
        // $this->bar is object Bar
        return $this->bar->that($param);
    }
}

vs:

class Foo {

    public function __call($method, $args) {
         return call_user_func_array(array(this->bar, $method), $args);
    }

}