PHP example on variable variables - without needing them

gistfile1.aw

<?php

function bar($a, $b, $c) {
    $r = new ReflectionFunction(__FUNCTION__);
    $params = func_get_args();
    $form = array();
    foreach ($r->getParameters() as $param) {
        $form[$param->getName()] = array(
            '#type' => 'hidden',
            '#value' => $params[$param->getPosition()],
        );
    }
}