I am currently running PHP 5.4.9 on Ubuntu 13.04 and I want to upgrade to 5.5 because of the new password_* library and other features. What is the easiest and least painful way to upgrade?
closed as off-topic by Christopher Perrin, mdpc, faker, Falcon Momot, Tom O'Connor♦ Aug 25 '13 at 22:37
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Unfortunately, there's no easy and painless way to upgrade now. You installed from the official sources, and it's definitely easiest to stick with them.
General ways to get an updated version are: