Go lang struct composition implementation in PHP

composition.php

<?php

class A {

    public $dependencies = [];

    public function __construct(...$arguments)
    {
        $this->dependencies = $arguments;
    }

    public function __call($name, $arguments){
        foreach ($this->dependencies as $key => $dependency) {
            $methods = get_class_methods($dependency);
            if (in_array($name, $methods)) {
                return call_user_func_array([$dependency,$name], $arguments);
            }
        }
    }

    public function __set($name, $value){
        foreach ($this->dependencies as $key => $dependency) {
            $vars = get_object_vars($dependency);
            if (array_key_exists($name, $vars)) {
                $dependency->$name = $value;
            }
        }
    }

    public function __get($name){
        foreach ($this->dependencies as $key => $dependency) {
            $vars = get_object_vars($dependency);
            if (array_key_exists($name, $vars)) {
               return $dependency->$name;
            }
        }
    }
}

class B {
    public $b;
    public function hello()
    {
        return "Say Hello From B";
    }
}

$a = new A(new B);
$a->b = "Setting from A";

echo $a->hello();
echo $a->b;

die();