Form input question

[shinytoygun]

Hey Everyone,

 

My website asks for an email address when one registers but I want to put a limit it on it (like to register you gotta have an email address from a specific domain). How can I edit the form input to do this?

 

Any help will be greatly appreciated, thanks 

 

-STG

[dawsba]

on your post handler script have something similr to this:

<?
function validEmail($email)
{
   $isValid = true;
   $atIndex = strrpos($email, "@");
   if (is_bool($atIndex) && !$atIndex)
   {
      $isValid = false;
   }
   else
   {
      $domain = substr($email, $atIndex+1);
      $local = substr($email, 0, $atIndex);
      $localLen = strlen($local);
      $domainLen = strlen($domain);
      if ($localLen < 1 || $localLen > 64)
      {
         $isValid = false;
      }
      else if ($domainLen < 1 || $domainLen > 255)
      {
         $isValid = false;
      }
      else if ($local[0] == '.' || $local[$localLen-1] == '.')
      {
         $isValid = false;
      }
      else if (preg_match('/\\.\\./', $local))
      {
         $isValid = false;
      }
      else if (!preg_match('/^[A-Za-z0-9\\-\\.]+$/', $domain))
      {
         $isValid = false;
      }
      else if (preg_match('/\\.\\./', $domain))
      {
         $isValid = false;
      }
      else if(!preg_match('/^(\\\\.|[A-Za-z0-9!#%&`_=\\/$\'*+?^{}|~.-])+$/',
                 str_replace("\\\\","",$local)))
      {
         if (!preg_match('/^"(\\\\"|[^"])+"$/',
             str_replace("\\\\","",$local)))
         {
            $isValid = false;
         }
      }
      if ($isValid && !(checkdnsrr($domain,"MX") || checkdnsrr($domain,"A")))
      {
         $isValid = false;
      }
   }
   return $isValid;
}
function dcheck($email,$domains=NULL)
{
  if(validEmail($email))
  {
    $tld = explode('@',$email);
    if($domains==NULL){return true;}
if(in_array($tld[1],$domains)){return true;}
  }
  return false;
}
$allowed_domains = array('hotmail.com','msn.com');
$emailok = dcheck('bob@bob.com',$allowed_domains);
if($emailok)
{
  echo "EMAIL EXISTS AND IS IN ALLOWED LIST";	
}
else
{
  echo "EMAIL DOES NOT EXISTS OR NOT IN ALLOWED LIST";
}
?>