Added a repository so that I could move from PHP 5.3 to 5.5 easily in Ubuntu 12.04.3 LTS. After adding the PPA and following most of the suggestions here <a href="http://askubuntu.com/a/109544">http://askubuntu.com/a/109544</a> it seemed that the PPA didn't handle the upgrade well enough or something was a bit off and things weren't working even after making the necessary config changes post-upgrade.