How to make automatic creation of a subdomain?

Question

PHP

I need both on GitHub, entered the name, the subdomain was created. How to implement? With using what? What registrars are needed?

Answer 1

With the help of Google: automatic creation of a php subdomain

Answer 2

Yes, nothing is needed. Set up a zone for your domain, and in the code, check the incoming header host: site1.example.com, respectively, your code should think for itself what to display for the user site1