Running php script as cron job - timeout issues?

Question

I am coding a php script that does some back end stuff and needs to run every 8 hours or so. The script takes a while to execute. For the hell of it, I tried it from my brow

Answer 1

No there are no time limits in php itself when executing php from the command line.

But there can be other timeouts, like connections to mysql. So if you have a mysql connection in your code, make sure to keep it alive or set your mysql timeout to something high enough to run your code. Another thing: I've seen some webhosting providers killing php apps running more then a few minutes. So make sure your provider does not do that.