Extracting Subdomain from Domain...

[enhancecom]

Ok, let say everyone who visit tutu.mydomain.com goes to the index page. How would I be able to extract the name tutu from mydomain?

So everytime that subdomain is entered, it only displays tutu on the index page and not the whole domain tutu.mydomain.com with the script I am using now.

The following just displays the whole subdomain...

$domain = getenv("HTTP_HOST");
$domain = strtolower("$domain");
$domain = trim("$domain");
$domaincheck = explode(".", $domain);
while ($domaincheck[0] == "www") {
$domain = substr("$domain", 4);
$domaincheck = explode(".", $domain);
}
while (eregi("--", $domain)) {
$domain = str_replace("--", "-", $domain);
}

echo $domain

Please help, thanks.

[rpanning]

I don't know how complex you need it but the following will get the first part of the domain (everything befor the first .). If you need it to do anything let me know.

<?php
$domain = explode('.',$_SERVER['SERVER_NAME']);
$subdomain = $domain[0];
print($subdomain);
?>

[enhancecom]

I tried the script, and when I tried a subdomain like watver.mydomain.com. Instead of showing "watver", it showed "www" instead.

Thank you for replying to my post and assisting me. If you or anyone could help modify the script to get it to work correctly, it would really help alot.

Thanks...

[matt_4013]

How about this?

$domain = explode(".", $_SERVER['HTTP_HOST']);
$subdomain = ($domain[0] == "www") ? $domain[1] : $domain[0];
echo $subdomain;

[enhancecom]

thank you matt! that worked like a charm...