eAccelerator is an accelerator and optimizer for PHP. It caches PHP scripts and stores them in compiled state into the memory, on a disk or in both places at the same time. It really speeds up PHP scripts. Source code is available on the eAccelerator project page http://eaccelerator.net/. Binaries that you can download from this site are built from official releases of eAccelerator and PHP. The only added thing is a version info sheet for dlls.
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