Sub domains

[Nine Years Old]

Hi! I am preparing a game website and each game will have it's own page. I want the URL to be in the format http://gamename.domain.com/. Can anyone supply me with the code I need to do this please.

[Ultimater]

It doesn't take code to create a sub domain. You need to first log into your server as the admin and then add a subdomain. (there should be a button somewhere)
Then each subdomain will have it's own folder. call a file index.htm or index.html and it will be used as the index of that subdomain.

[MstrBob]

The changes need to be applied in your Nameservers. Addmittedly, if you have a control panel for your website like CPanel, it's generally as easy as simply clicking "Add Subdomain", but it will vary depending on your host and configuration.

[Nine Years Old]

I talked to the hosting company and they said I just need a bit of PHP code in my root folder.

[bokeh]

You are correct. All you need is a little PHP code. What your host has set up is called psuedo sub domains as it simulates real sub domaining but no DNS or virtual server alterations are needed. Your host has set up a wildcard DNS entry (*.domain.com) and virtual server which point all sub domains into your root directory. Here's how to use it. Make a directory in your root folder called games and put all your games web pages in there. Name each one as follows: 'gamename.php'. Now put the following code right at the top of your 'index.php' file in your root directory and everything will work as you hoped.

<?php

$host = $_SERVER['HTTP_HOST'];
$domain = 'domain.com';            //alter to suit
$games_directory = '/games/';    //alter to suit
if(($host != $domain or $host != 'www'.$domain) and list($game) = spliti('\.', $host) and file_exists($games_directory.$game)){ 
    include($games_directory.$game.'.php');
    exit();
}else{
// display default root directory contents (index.php) as this is the domain root file
}

?>

[vi5in]

Either that, or you could use an .htaccess file and ModRewrite.

[Nine Years Old]

I've gone with Bokeh's PHP code. I've uploaded it to the server and it seems to be working fine without the changes the other posters said I would need to make. Thanks mate!