Fake sub-domain in 1..2..3

I just figure this out, thanks for Google’s help. 🙂 If you want to have fake sub-domain, which do nothing but to send request to your PHP script, so you don’t need to use separate script for each sub-domain, then this might be the simplest way to do. Yup, as easy as 1, 2, and 3……. lol

Okay, so this is how:

1. Create a sub-domain and fill the name with single “*” (without quotes). For example *.mydomain.com. Specify your sub-domain directory if you want, I use “sub”, so when there is (unknown) sub-domain called, it will automatically call the script in mydomain.com/sub.

2. Then add this piece of code to retrieve the sub-domain name.

$subdomain = preg_replace(“/^([\w-]+)\..*$/”, “\\1”, $_SERVER[‘HTTP_HOST’]);

3. Done!!! Now you can process your script easily when you know the sub-domain. 🙂

2 comments | Leave a comment

  1. Pegasus July 17, 2009 16:56

    i think this is a good article.. but dunno what function of it.. 😀

    bro,, you have trick to ride off the file size limitations on some server??

    happy blogging 😀

  2. keaglez July 17, 2009 18:14

    The function is, for example when you want to provide a feature to create fake sub-domain for your user. In real work example, user would like to have sub-domain such as user.domain.com, which show the user profile page, this can be done easily with fake sub-domain, using a single script to process the request… 🙂

    hmm… for file size limitation, I’m not sure, but you can try to ask your hosting or split the file…

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