PHP - Cookies Per Subdomain

I'm making an admin so I need to be able to do this:


https://admin.mysite.com
   Run an upload image script from a file, saves image to folder in
http://www.mysite.com
   Image Folder

What is the easiest way to get the value of subdomain. For example, when browsing word1.example.com; how to get it (like $_GET['q']) to put "word1" into an string.

Hello.

I am currently working on a new site (http://sa.cx) that is basically a free domain like this: (example.sa.cx). My main goal is to allow users to set the the full MX, CNAME, A and SOA records.

Any ideas on how I could go about this using php?

My initial thought would be via cURL.

my site is laid out as follows:

beta.domain.com/index.html   <-- this page contains an ajax form
scripts.domain.com/js/formoperations.js   <--ajax javascript
scripts.domain.com/php/msgsend.php  <--ajax php script

The PHP script which is posted below is to echo back "Thank you" once the form is processed & emailed. If the files are in the directories stated above the PHP script does not echo back. It still completes emailing the form data successfully but does the echo does not make it back to beta.domain/index.html.

HOWEVER...if I move my PHP file to beta.domain.com/msgsend.php it works flawlessly. Why can't my script echo across subdomains?

Thanks!

Code: [Select]
<?php

$fname= urldecode($_GET['param']);
$lname = urldecode($_GET['param1']);
$email = urldecode($_GET['param2']);
$details = urldecode($_GET['param3']);
$datereported = date(n."/".j."/".Y." @ ".g.":".i." ".A);

$text="<p><b>First Name:</b> ".$fname."</p><p><b>Last Name:</b> ".$lname."</p><p><b>Email Address:</b> ".$email."</p><p><b>Message:</b> ".$details."</p>-End Submission";

$plaintext="First Name: ".$fname."\nLast Name: ".$lname."\nEmail Address: ".$email."\nMessage: ".$details."\n\n End Submission";


$to = 'chris@domain.com';
$subject = 'Web Message';
$random_hash = md5(date('r', time()));
$headers = "From: Web Message\r\nReply-To: info@domain.com";
$headers .= "\r\nContent-Type: text/html; charset='iso-8859-1' Content-Transfer-Encoding: 7bit";
ob_start();
?>
<img src="http://uniformimgs.domain.com/emailheadcontact.gif" alt="" />
<p style="font-family:Arial, Helvetica, sans-serif; font-size:12px; margin:15px 0 50px 0;"><?php echo $fname.' '.$lname; ?> has submitted a message from the website on <?php echo $datereported; ?>.</p>
<?php echo $text; ?>
<?
$message = ob_get_clean();

if(mail($to, $subject, $message, $headers))
{
echo '<h4>Thanks for your message '.$fname.'!</h4><br/><br/><br/><br/>';

$to = $email;
$subject = 'Thanks for your message!';
$random_hash = md5(date('r', time()));

$headers = "From: info@domain.com\r\nReply-To: info@domain.com";
$headers .= "\r\nContent-Type: text/html; charset='iso-8859-1' Content-Transfer-Encoding: 7bit";
ob_start();
?>
<img src="http://uniformimgs.domain.com/emailheadcontact.gif" alt="" />
<p style="font-family:Arial, Helvetica, sans-serif; font-size:12px; margin:15px 0 5px 0;">Dear <?PHP echo $fname ?>,</p>
<p style="font-family:Arial, Helvetica, sans-serif; font-size:12px; margin:0;">Thank you for sending us a message from our website; we love hearing from you folks! If needed, we'll contact you as soon as possible in regards to your message.</p>
<p style="font-family:Arial, Helvetica, sans-serif; font-size:12px; margin:20px 0 0 200px;">Sincerely,</p>
<p style="margin: 10px 0 0 200px;"><img src="http://uniformimgs.domain.com/briansig.gif" alt="" /></p>
<p style="font-family:Arial, Helvetica, sans-serif; font-size:10px; margin:0px 0 0 200px;">John R Smith, pricipal</p>
<p style="font-family:Arial, Helvetica, sans-serif; font-size:10px; margin:200px 0 0 0">This email has been sent by an automated service</p>
<?
$message = ob_get_clean();
//send the email

mail($to, $subject, $message, $headers);
}
else {
echo "<h5>Oops! Seems like we have a problem.</h5><h6>Please try again later or call XXX-XX-XXX.</h6>";
}
?>

I did a project for a client over a year ago and never ran into this problem on their shared server, but now I'm having this problem on my own... and I'm not sure why.   I want to give free members their own subdomain. I want the php files to scan the subdomain to determine which pages to display. So like my index.php would scan the subdomain and show the corresponding user's home page so that if you go to someguy.thisdomain.com, it would really just scan index.php at thisdomain.com and act accordingly.   On the other project, no extra folders were created. I know that subdomains can be created in cpanel and then extra folders would be added and whatnot, but I was able to effectively use subdomains for users without htaccess or any sort of cpanel functions.   The main problem is when I test subdomains. I have php code that just echos "Subdomain is blah" and it works when I go to www.mydomain.com and also just mydomain.com, but when I go to test.mydomain.com, it gives an error as if the domain doesn't exist.