title: BPM frameworks in PHP?
body: <p>Do we have any BPM frameworks developed in PHP?</p>
  
  <p>I did a Google and found some old (2005) entires which talk about starting such a project. But I don't see any solid framework out and running. So, I was just curious.. do we have any? </p>
  
  <p>If not, why haven't the community yet developed one? Zend framework is a leading PHP framework, why haven't they started developing such a component?</p>