There are several compilers for your PHP scripts out there, and John Coggeshall is throwing his hat into the ring as well.

With the PASM source code, he provides the source tree of his development so far. But, since I am much too busy to really do any signficant work on the project anymore, I figured I'll just release what I have and see if anyone out there is brave enough to make it work.

The idea behind this project is to create a simple, clean way for you to grab the op-code and the array of data from the compiled script and recombines them into a whole.

For more examples see here and here...