My store (1.7 or 1.8, not entirely sure which) was fine one day and replaced with this error message the next: "No input file specified". I have seen that it is a common problem with GoDaddy hosting, but I am not with them. I have tried all of the suggestions I found for the GoDaddy issue though but nothing is working. I have had it hosted at this location since it was created 3 years ago. My host updated PHP to 5.6.28, which seems to have triggered this. Does anyone have any idea what could be going on, or what I can try? I'm desperate. I know it's long overdue for an upgrade, but I don't want to attempt it while it's broken.
Are you sure that you are using Magento 1.7 or 1.8?
Both versions are not compatible with PHP 5.4 and above unless they are patched:-
And the patch still doesn't guarantee full compatibility with PHP 5.6.
After being down for 2 days and trying everything I could, the store came back today on it's own. The host claims that nothing was done on their end, so I have no idea what's going on. Gonna try to upgrade over the weekend.