Take a look at the links below - they are about web development using PHP, Ruby, Java and Microsoft .NET
Scan through these articles and make a list of all the things that looks familiar to you. Don't worry about the details. Just look for concepts you immediately recognise or is vaguely familiar.
- http://php.net/manual/en/language.variables.external.php
- http://sinatrarb.com/intro.html
- https://tomcat.apache.org/tomcat-5.5-doc/servletapi/
- https://spring.io/guides/gs/serving-web-content/
- https://docs.microsoft.com/en-us/aspnet/web-pages/overview/getting-started/introducing-razor-syntax-c
What do you learn from this exercise?