I have put our internal Sencha module that we use on Github, it currently provides a Direct API generator with caching and an automatic bootstrap generator. The github repository is located at https://github.com/KablauJoustra/KJSencha
This is only a small part of the features that we use in our applications and more will be put on Github later.
Future plans are:
Dynamic Ext JS component generator in PHP
Direct Polling with simple CRON syntax
Support for stores
Rest controllers with zf2 hydrators
Automatic Sencha CMD bootstrap builder
Sencha Touch and Ext Scheduler modules
There is an Example application available here which has the Direct examples from the official documentation.