How to make remember me, login, log out. Please help

Answer 1

you'll need serverside language for that, the one that available here is php.

Answer 2

You need a database and another language to store/load login data.
If you want to keep account open, you need to set cookie with that language.
If you don't know where to look, search for Mysql and PHP. There are alternatives of course.

Answer 3

does that mean to make a website, we have to be able to use PHP or other languages?

Answer 4

apakah kita perlu belajar php atau bahasa yg lain jga agar bisa benar2 membuat suatu webside?

Answer 5

static web no you dont.

dynamic one, yes but not only limited to php. you can use nodejs its in javascript, django its in python, or servlet its in java. and of course those are just really small bit of example.