I'm not super familiar with PHP -- if you're looking for more of a backend focused project I'd recommend the "ASP.NET Core Web API" template. If you're looking for something that serves HTML pages, possibly the "ASP.NET Core Web App (Model-View-Controller)" template would be pretty straightforward.

There's a pretty good starter tutorial for the Web API one here: https://learn.microsoft.com/en-us/aspnet/core/tutorials/firs...

Or here for the Web App MVC one: https://learn.microsoft.com/en-us/aspnet/core/tutorials/firs...