Most Frequently asked questions of Laravel during an Interview

I am going to hire a programmer on PHP Laravel for my online company. But I don't have proper knowledge on PHP Laravel. So, I don't have any idea how can I interview them. What I have found is this-

http://ift.tt/Y54poF

But is is common 5 questions. I want to hire an expert, so can anyone help me by giving a suggestion on how can I test them perfectly during interview so that I can hire a perfect one?

Thanks in advance for helping.