New from the BiGiTSS blog there's a reminder for those looking to upgrade to the latest PHP 5.3 release - is your code ready?
If you are planning to upgrade to PHP 5.3 from PHP 5.2.x then you must think twice before you really do it. There are few things you should take care of. Recently last week I tried upgrading one of the web-server to PHP 5.3 from PHP 5.2.9 and it was not a good idea which I came to know later on.
They mentions all of the warnings/errors they found on the upgrade and spotted an issue with one of their external libraries that caused them to have to roll back that as well. Be sure to check the deprecated list before you try moving up your PHP version and ensure that things like the __toString override don't catch you and your application off guard.