zendframework/zf2 — pull request #1777 by AlloVince (2012-07-06 03:19:46+00:00)
Title: Add FormMultiCheckbox method exist check

See my test code:
https://github.com/AlloVince/eva-engine/blob/master/public/zf2libs/multicheckbox.php

if without any method exist check, this will cause:

Fatal error: Call to undefined method Zend\Form\Element::useHiddenElement()