ionCube PHP Accelerator (PHPA)

php-accelerator RPM is just a more convenient packaging for the ionCube PHP Accelerator (a.k.a. PHPA) - a PHP intermediate code cache, similar to APC and Turck MMCache.

phpa will conflict with Turck, APC and APD

Since phpa is provided by its author in binary form only, there is only one one-size-fits-all RPM for all RedHat distributions:

Source

If you want to rebuild these RPMs yourself, download the source files from the SourceForge File Release System. In addition to the nosrc.rpm-s you'll need PHP source tarball (tar.bz) used in your distribution.