Node JS or PHP callback after some time

I have writing taxi service app, and have a question about architecture / technology.

• client app make a request for car;
• its waiting some time (3 min);
• if nobody accept this order request, passenger receive push notification "driver not found"

I am asking about how to make this wait function.

Which is better node js OR php (server already written on php but i can make this call on node).

Which framework need to use for this(if its needed).

And which CPU load will be?

Thanks!

via Vadim Kozak