Building a Webform (php or django)?

[Ericarthurc]

So I am in the process of building a web form that is pretty simple. It has a "selector", where there is five options to choose from and each item has a quantity of 500. It keeps track of how much quantity is left. Then when it hits 0 it remove that option. It asks for email to avoid the same person signing up twice. I haven't implemented any java script or back-end yet for the site, the front end "shell" is complete though; but the idea for the site is from an old PHP site made in 2006. I am recreating the site using modern tools and bootstrap for a modern design. My question is should I be using php or is django a better option. I will be using Nginx to serve the site. 

I ask because I have knowledge of python and django, but don't really know php. I don't want to waste time investing in this site with django if it's easier to implement in php though; and I would take the time to learn php for it.