I hope someone is working on Kwalify-type support for JSON/PHP

I’m working on a PHP app that uses JSON, and I realized I needed a validator. Hrm…nothing seems to be out there. However, if I was using Ruby and YAML instead, I could use Kwalify. Alas, neither is an option for what I’m working on (an election plug-in for MediaWiki), so I’ll have to wing it.