Where Will The Comments Or Sign Up Information Be Stored In A Html Website?

i know how to make a website with html and css and i know the script to make a comment section or login or sign up area but i don't know where the comments and sign up information's be stored. thanks

The Login and Sign up information is usually stored in a database like Mysql. Comments can often be stored in a "flat file" or txt file, but may also be databased.PHP is a good language to use with this sort of information handling. Use a PHP script to store and retrieve the information and test for its validity. There are several Tutorials in the Tutorial section here on the Trap (Xisto) site.Using Flat (text) files is easier in that you can avoid leatning the Database programming, in the long term, they do not scale well for active (large) sites. Security can also be an issue with flat files.

As Jlhaslip said, I'd definitely go with MySQL (or any database but MySQL is free) and PHP. It wouldn't be too hard to implement these either, but when it comes to the login part you'll want to make sure it's very secure (checking input, cutting down on sql injections, etc.). The others are pretty simple to handle.