.html or .php?

[Timon]

your posts have been removed and you are banned.

[priji]

Definitely you'll need PHP (or ASP or ColdFusion or Ruby on Rails or some other scripting language)... because HTML isn't a programming language, it's a markup language.And you'll need a database to go along with that to store the data. The most common one used in conjunction with PHP is MySQL, though it's quite capable of talking to "others" as well.