Turning part of an array into a variable to output

[?foru]

forum_amnesiac posted some code in another thread which is very similar to mine but I started a new thread as to not interfere with the other thread question.

This also creates a dynamic dropdown list

 $carriers = array( 
 'Alltel' => '@message.alltel.com', 
 'Ameritech' => '@paging.acswireless.com', 
 'AT&T' => '@txt.att.net', 
 'Bellsouth' => '@sms.bellsouth.com', 
); 

Function for select

function carrierOptions($selected) 
{ 
 $html = ''; 
 global $carriers; 
 foreach($carriers as $carrier => $email) 
 { 
  if($selected==$carrier) {  $html .= '<option value="'.$carrier.'" SELECTED>'.$carrier.'</option>'; } 
  else {  $html .= '<option value="'.$carrier.'">'.$carrier.'</option>'; } 
 } 
 return $html; 
} 

After submit I use the following vars to echo out who the message was sent to.

 $carrier = $carriers[$carrier]; 
 $to = $phone.$carrier; 

$to would produce something like xxxxxxxxxx @ message.alltel.com (spaces to not create a link)
Everything works fine
but I would like to show the selected value from the dropdown also

echo "Carrier selected was: ".$name_var." and your message was sent to ".$to."";
//Carrier selected was: Alltel and and your message was sent to xxxxxxxxxx@message.alltel.com 

With this array type I don't believe there is a way to show the carrier name that way since the array associates to the provider email address like => $email

Could the above function be re-written maybe to dynamically just provide the Carrier name that was selected? I appreciate any help, thank you.

[?foru]

I was able to get this working with

$carrierto = array_keys($carriers,$_POST['carrier']); 

$carrierto to avoid confusion with the array value $carrier like...

...
foreach($carriers as $carrier => $email)
... 

Then this worked to echo the result I needed.

echo "Carrier selected was: ".$carrier." and your message was sent to ".$to.""; 

Thank you