Recognizing Subdomains

[undertoad666]

I'm using php to process a form in Flash. I can't find a solution from the Flash side for my problem so I'm hoping there might be a PHP solution.

This flash form is being pointed at by multiple subdomains which are all being forwarded to the same exact html, swf and php files. I really need to know from which subdomain the form was filled out from each time.

So say I have mysite.com site1.mysite.com site2.mysite.com all pointed to the same files. How can I get the PHP to add "this was sent from site2.mysite.com" to the message of the email that is sent to me?

If anyone can let me know if it's possible and what I'd need to add to my PHP it would be greatly appreciated. The following is the basic structure of what I'm using

<?php
//echo phpinfo();
$name = "";
$email = "";

$name = $REQUEST['name'];
$email = $REQUEST['email'];

$to = "[e-mail]";
$subject="Website Form";
$msg = "$name is my name\n";
$msg .= "$email is my email address\n";

$header = "MIME-Version: 1.0\r\n";
$header .= "Content-Type: text/plain; charset=iso-8859-1\r\n";
$header .= "From: ".$email."\r\n";
$header .= "Reply-To : ".$email."\r\n";
$header .= "Return-Path : ".$email."\r\n";
$header .= "X-Priority: 1\r\n";
$header .= "X-MSMail-Priority: High\r\n";
$header .= "X-Mailer: PHP4\r\n";

mail($to, $subject, $msg, $header);
echo "Message Sent";
?>

[cahva]

You can use $_SERVER['HTTP_HOST'] in your script which tells the current host.

[undertoad666]

Thanks for the reply. I'm lost with Php. Could you tell me how to use that code.

Would $msg .= "$_SERVER['HTTP_HOST']\n"; just work as another variable that gets sent to my email?

[cahva]

Well you've could just test that you know 🙂 But yes, its a predefined variable that you can use just like any other variable.

[undertoad666]

I did test it and it's not working for me. Actually adding that line of code stops the entire form from sending. I take the line out, the form sends fine. Put it in, form doesn't send at all. The following is the code for the email message with the added line:

$to = "[e-mail]";
$subject="Website Form";
$msg = "$name is my name\n";
$msg .= "$email is my email address\n";
$msg .= "$_SERVER['HTTP_HOST']\n";

What am I missing here? Help is most appreciated.

[cahva]

You said that it stops the whole form sending. It cant be unless you have some other error in the page. What do you get when you print out the variable:

echo $_SERVER['HTTP_HOST'];

BTW, its usually best to write your strings like this:

$msg .= "{$_SERVER['HTTP_HOST']}\n";

or even

$msg .= $_SERVER['HTTP_HOST'] . "\n";

[undertoad666]

I appreciate your replies. Thanks for taking the time.

I used your syntax $msg .= "{$_SERVER['HTTP_HOST']}\n"; and the form works again.

The problem is that this is only passing on the host info ex. http://mysite.com
I need to know if it's possible to pass on the subdomain url ex. http://site1.mysite.com

[niroshan]

use,

echo  $_SERVER['SERVER_NAME'];

Thanks,
Best regards,
Niroshan