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Editorial Team
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Asked: 2026-05-13T20:34:51+00:00

I’m interested to create subdomains on the fly directly from php. For example when

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I’m interested to create subdomains on the fly directly from php. For example when an user create a new page I want that page to be newpage.mydomain.com. Is that possible without changing the php or apache configuration files (supposing I’m using a shared hosting account).

Later Edit: I’m talking about my domain, and I have full access to the domain administration area.

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  1. Editorial Team

    1. Set up an error document in your .htaccess file that redirects every single 404 to a file called maybe redirection.php. This .php file is what will handle the “on the fly” redirects.

    2. Add a wildcard DNS record in your zone files, so that [whateverhere].yourdomain.com points to the IP of your webserver

    3. Add a wildcard serveralias in your apache configs by using:
      ServerAlias *.yourdomain.com

    4. Write the following code in your redirection.php file.

    .

    <?php

$url = $_SERVER["REQUEST_URL"];
$newurl=str_replace(".yourdomain.com","",$url);
$newcomplete="http://yourdomain.com/".$newurl;
Header("Location: ".$newcomplete);

?>

    Does this help a bit?

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