I am working on a directory site and am trying to find out the best ways to maintain it.
What i would ideally like it to be able to run a script that checks to see if a url still works. The only way i would know to do that is to fopen code of the url and run through it to make sure 404 or similar error codes are not found but i don't think that's very accurate! Any other ideas?
My second question is that it would be nice to automatically take a screenshot of the site being added to the directory to use as a thumbnail. Is this possible with php?