I've always wondered why some people put a "@" in front of mysql functions, like:

So if anyone would care to explain? Thanks in advance.

it is a language construct that suppresses warnings and errors. In this case it won't stop the execution of the script if there is an error or warning.

It is a bad practice though, because if you don't get the results you expected you need to handle them accordingly so that the user of the app/website/script would have a better experience. Plus without it is better to debug.

Thanks once again xD!