Hi,

The PHP APC extension:

The APC extension is an opcode cache for your PHP scripts, but also provides a similar function to that of memcache. The biggest problem with APC is that you can only access the local APC cache. There are other distributed caching systems, such a MCache, but I have no personal experience with any of these, so I cannot opine on any advantages or disadvantages of using another tool.

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Regards,
Senraj.A