A tool to AES encrypt/decrypt data in javascript and/or PHP. You can use it for PHP only, for Javascript only or mix it together. It uses aes-256-cbc implementation ...
This proposal is complete and already merged into ECMA262 specification. See the specification text here. Thanks for help and feedback on this effort from Brendan Eich, Waldemar Horwat, Jaro Sevcik, ...