Query Strings, how do you do it? Options

[Mikeplyts]

I was wondering how you could make those url's that have a question mark and a few equal signs and such at the end of a url. I belive they are called query strings, right? How can I do it to like make a page go to a next page such as this where it has "?page=2". I know it has to something with PHP and I tried googling tutorials but I just don't understand. Can someone please explain how to do this like if I wanted to make the page go the second page using a simple HTML "a" tag? Thanks.

[newkidontheblock]

I know the code above is too advance for someone who is a beginner but here is a simply code. The code is mostly self explanatory.

CODE

<?php
    if ( isset( $_GET['page'] ) ){
        $page = $_GET['page']; # Getting page ID ex. ?page=2
    }
    if ( empty( $page ) || $page == '' || $page == '0' ){
        echo "Home Page Content";
    } else if ( $page == '1' ){
        echo "Page 1 Content Goes Here";
    } else if ( $page == '2' ){
        echo "Page 2 Content Goes Here";
    } else {
        echo "Page Not Found";
    }    
?>

Within the code their are for pages:
- Homepage
- Page 1
- Page 2
- Error Page

To access the Homepage you simply can access it by going to the page.php, or page.php?page=0
To access page one and to you can go to page.php?page=1 or page.php?page=2
To acess the error page you can go to any page that is not listed ex. 3, 4, 5, etc.

To add new page you can add an

CODE

else if( $page == 'PAGEID') {
    echo "Page content goes here";
}

Make sure it is places before the else statement.
PAGEID Doesn't have to be a number it can be letters too.

HERE is a preview