Setting up subdomains dynamically, php-code wise?

Hello,


Is there a possible way to set up subdomains for a domain automatically; in programming code for example?

Like when a user registers on a site, he automatically gets a subdomain assigned.

Regards,


Fat Abbot

 

you can make virtual subdomains using .htaccess.

I have not the information at hand, but google it

 

thats called wildcarded subdomains. for eg - aaa.bbb.com maps to bbb.com/aaa etc...

 

I think not .If you use cPanel you can use iPanel: http://www.ihostdev.com
Or cPanel Subdomains Creator: http://www.zubrag.com/scripts/cpanel-subdomains-creator.php

 

I used that subdomain creator, it works, but how can you automatically make the subdomain point to a users profile for example ?

Like

user.site.com

should display: site.com?profile.php?username=user

 

wildcarded subdomains enabled and .htaccess (mod_rewite) redirect to the actual url of profile

 

I need to add a line in .htaccess manually each time someone registers ?

 

I do this, but on a Windows server with Apache 2.x.x. The big trick is this:
in your httpd.conf file you need your first virtualhost to contain:

VirtualDocumentRoot "dir_path_to_where_you_want_the_subdomains_to_be\%1"

This requires the vhost_alias_module (mod_vhost_alias.so) to be loaded in your DSO support section of httpd.conf.

Now all you have to do everytime you want to grant somebody a subdomain is just create the subdirectory with mkdir(). (and, of course, record his details in your DB for your own reference.)

I did battle my butt off to get the thing to work the first time, but there is quite a lot of documentation at apache about mod vhost_alias.
If I remember correctly, the biggest struggle was because I wasn't putting that vhost with the virtualdocumentroot first. I also forget now whether I needed followsymlinks for the directory section pertaining to the domain.

"dir_path_to_where_you_want_the_subdomains_to_be\%1" really just tells apache to take the first part of the server string and stick it on the end of the root domain, eg

subdomain1.mysite.com becomes mysite.com/subdomain1

Of course, you'd want to regulate the signup process to include a check on what subdomains have already been dished out, as well as whichever you've used for yourself.

Works like a bomb, and I don't have to do anything at all (my favourite activity! ). If you have any problems, just give me a shout.