关于PHP possibilites的问题（用户，admin / mod）

Question

First of all, I'm kinda new to web programming and programming in general. HTML/CSS + Javascript are as far as I've gone over the last few years.

Now, for the purpose of my work, I need to learn PHP.

What I'm most interested about is user registration + users' privileges.

My task is to create a web application that is, let's say, a simpler version of a blog. I'd like to know is it possible to build such an application from scratch and add users with different privileges. And, if so, what is the best way to do it? I doubt I'm gonna be using some framework as I intend to learn PHP coding on my own. If you could point me to some useful resources I would be more than grateful :)

Cheers

EDIT: I'll try to be more specific. My goal is not to create a content management system from scratch. I'm interested to know if there is a way to build a blog-like application with user registration and different privileges that are going to be applied on every page.

Answer 1

In order to solve that problem you need some idea about how you are going to construct your website. Most of the times header and footer should be in different files which are later included on every page. In header there should be some user validation code. Which depending on user privileges will create some global variable which will later serve as a flag.

For example: let's say you have privileges from 5 to 1. Five being full access and 1 being most restricted access. So later in the code you should create test for the privileges status which will change the output of the page depending on the number.