PHP & APC vs Zend

[HostingGuy]

Does anyone know if APC is compatibly with Zend - I know that eAccelerator is not, only one of the two can be installed - and if so is there any benifit to using it over zend in a shared hosting?

I know there are several benifits in a dedicated when one customer needs it for vbulletin or something, but Ive never used it in shared.

[huck]

The key issue is the loading order. Also if you use them as an extension or zend_extension. I don't recall off the top of my head the order but I've setup boxes with both Eaccelerator and Zend.

Also, you may want to take a look at Xcache.

http://xcache.lighttpd.net/

If this is for performance reasons on a busy site, I suggest some benchmarking and testing. I found Xcache to be 30% faster on one of our client's sites than Eaccelerator.