gistfile1.aw

<?php

// OH GOD NO
$object = new ClassName();

class ClassName {
    function method_one()
    {
        global $object;
        $object->method_two();
    }
    function method_two()
    {
        global $object;
        $object->another_method();
    }

    // ...
}

// Proper
$object = new ClassName();

class ClassName {
    function method_one()
    {
        $this->method_two();
    }
    function method_two()
    {
        $this->another_method();
    }

    // ...
}