Building the latest and greatest PHP on Debian Wheezy

How To Build PHP 5.5 (PHP-FPM & FastCGI) With ionCube Loader, Zend OPcache And APCu For ISPConfig 3 (Debian Wheezy) | HowtoForge – Linux Howtos and Tutorials –

This lays out the details for building an advanced instance of PHP. Steps are run on Wheezy but may work elsewhere.