Obfuscate php code

A very easy solution is to use base64 functions and eval.

with base64_encode you encode your php code (you need to do a simple program what reads content of your php files and save as txt)

after that to execute a encoded code just run

eval(base64_decode("your encoded code from text files");

Regards

P.S. Be sure your code is ok before encode it, because otherwise is very hard to debug