PHP 4.3.10 - mmcache 2.4.6 - foreach() problem

[Paio]

Hello, I am having a problem when updating php from 4.3.9 to 4.3.10. Some scripts encoded with mmcache fail, particularly foreach() function . Looking for information I could read that it must to downgrade of this function from php 5, and the solution that very many forums and sites give in is to update the Zend Optimizer to version 2.5.7 (so it can load encoded scripts correctly), but after trying a lot,  it does not work.

I would be thankful if somebody could help me.

I dont use mmcache for optimizing, but I need to encript the code since it goes to the servers on my clients. Thanks again.