We are running PHP 5.3.3 and want to upgrade to PHP 5.4.23.
We tried it last night but quickly rolled back because it caused our sites to not load.
We were told (by Rackspace or Dedicated Server Provider) it is because we use global variables and they are no longer supported in 5.4.
Is there an easy way to track down where the global variables are?
Or some code that you can add that somehow converts them?
Or is this one of those things that you need to go through every page of your website and do it manually?
Thank you in advance for your advice.