I'm guessing that prospective employers will also be looking for people who can do their own research!
Start here:
Search in CodeProject[
^]
and then progress to here :
"php" "interview questions" - Google Search[
^]
My best advice to you is to be honest about your experience (or lack of it) and to make sure you know PHP - preferably via a taught course or a good book. Avoid anything that says "in x days", "in x weeks" and most YouTube videos are equally useless