zendframework/zf2 — pull request #2982 by pkarc (2012-11-16 05:13:45+00:00)
Title: setCallbackOptions

http://framework.zend.com/manual/2.0/en/modules/zend.validator.set.html#adding-options

callbackOptions should be the 2nd param to pass to the callbackFunction not the last param (it could be the $context as optional)