Multiple Domains on One Site

[sublet]

I have a page that pulls up certain content based on the ID that is attached.

Like so :
www.domain.com/thisPage.php?ID=1234

I want to be able to set different domains to goto different ID#'s.

Like so :
www.domainOne.com -> www.domain.com/thisPage.php?ID=1234
www.domainTwo.com -> www.domain.com/thisPage.php?ID=5678

Any ideas?

[richardk]

The domains need to go to the main domain's document root.

Are there a few domains? Then you can do this

Code: Select all

Options +FollowSymLinks

RewriteEngine On

RewriteCond %{HTTP_HOST} ^(www\.)?domainA\.com$ [NC]
RewriteRule ^$ /thisPage.php?ID=1234 [QSA,L]

RewriteCond %{HTTP_HOST} ^(www\.)?domainB\.com$ [NC]
RewriteRule ^$ /thisPage.php?ID=5678 [QSA,L]

If there are lots of domains you will be better off adding an array to the beginning of the script

Code: Select all

<?php

$domainToId = array(
  'domainA.com' => 1234,
  'domainB.com' => 5678,
);

if(getenv('REDIRECT_MRDOM') !== false
   && array_key_exists(getenv('REDIRECT_MRDOM'), $domainToId))
{
  $_GET['ID'] = $domainToId[getenv('REDIRECT_MRDOM')];
}

with

Code: Select all

Options +FollowSymLinks

RewriteEngine On

RewriteCond %{HTTP_HOST} !^(www\.)?domain\.com$ [NC]
RewriteCond %{HTTP_HOST} ^(www\.)?([^\.]+\.[^\.]+)$ [NC]
RewriteRule ^$ /thisPage.php [E=MRDOM:%2,QSA,L]

Or using a RewriteMap (only if you have access to the httpd.conf file).

[sublet]

I actually do have access to the entire server. What is a rewrite map?

[richardk]

For a RewriteMap you'd have a text file (or you can use a program) on the server and it would have the domains and IDs in it, eg. (domain-to-id.map)

Code: Select all

domainA.com 123
domainB.com 456

Then in the httpd.conf file (in the <VirtualHost> for the document root)

Code: Select all

Options +FollowSymLinks

RewriteEngine On
RewriteMap domain2id txt:/path/to/domain-to-id.map

RewriteCond %{HTTP_HOST} ^(www\.)?(.+\..+)$ [NC]
RewriteCond ${domain2id:%2|notfound} !^notfound$ [NC]
RewriteRule ^/$ /thisPage.php?ID=${domain2id:%2} [QSA,L]