keyplyr - 9:35 am on Jan 24, 2013 (gmt 0)
Gdaddy (for example) has been moving all sites to cloud computing little by little, upgrading from PHP 5.2 to 5.4 (much more strict.) Several sites I was minding after took a fall. They all parsed HTML for PHP and used a ton of PHP includes as well as a couple older custom shopping carts I wrote using register_globals (I know, I know... a big security hole and I should have fixed them ages ago.)
When I talked to the admins, their categorical answer was they no longer support PHP includes on HTML pages or having register_globals ON in this new version due to security issues. Beyond that, they wouldn't say. Is it the strct version of PHP or merely the fact their file servers now reside in the cloud, or a combination of both? Dunno.
The very same has happened at other shared hosting services. I sometimes work as a gun for hire and I have repaired a lot of broken Order forms or Contact Us forms due to this PHP change with cloud serving.
The FYI is a reality. If your host is planning on migrating your files to cloud computing, it would be prudent to find out exactly what changes will occur. The problem is, Gdaddy told me not to worry that nothing would change - LOL. Spent 3 days fixing all those things that didn't change.
Bottom line - The internet is a dynamic of constant change. Keeping up is almost a full time job. Even worse if you're cheap like me and don't want to pay over $10 a month for hosting :)