Escaping with a proxy

gistfile1.php

/** @var Bar $bar */
$bar = new EscapingProxy(new Bar());

echo $bar->qux;
echo $bar->getFoo()->baz;
echo $bar->getFoo()->getBaz();



class Foo {
    public $baz = "baz";

    public function getBaz() {
        return $this->baz;
    }
}


class Bar {
    private $foo;
    public $qux = "qux";

    public function __construct() {
        $this->foo = new Foo();
    }

    public function getFoo() {
        return $this->foo;
    }
}

class EscapingProxy {
    private $object = null;

    public function __construct($object) {
        $this->object = $object;
    }

    public function __call($name, $args) {
        return new self(call_user_func_array(array($this->object, $name), $args));
    }

    public function __get($name) {
        return new self($this->object->$name);
    }

    public function __raw() {
        return $this->object;
    }

    public function __toString() {
        return $this->__escape();
    }

    public function __escape() {
        // Just for demo purposes
        return '-' . $this->object . '-';
    }
}