$mail->Password = $settings['smtp_password'];

$mail->Port = 25;
$mail->Mailer = "smtp";

<?php
/* eoCMS is a content management system written in php
    Copyright (C) 2007 - 2009  James Mortemore, Ryan Matthews
    http://www.eocms.com
   This work is licensed under the Creative Commons
   Attribution-Share Alike 3.0 United States License.
   To view a copy of this license, visit
   http://creativecommons.org/licenses/by-sa/3.0/us/
   or send a letter to Creative Commons, 171 Second Street,
   Suite 300, San Francisco, California, 94105, USA.
   Additional license terms at http://eocms.com/license.html
*/
function register($username, $password, $vpassword, $email, $token, $captcha, $tos) {
   global $settings, $error, $error_die;
   call('checktoken', $token);
   if(!empty($settings['tos']) && $tos != 'on') {
      $error[] = 'You must agree to the Terms of Service to register';
      return false;
   }
   if($settings['register_captcha'] =='on')
      $captcha = call('captchacheck', $captcha);
   if($settings['register_captcha'] =='on' && $captcha == false)
      return false;
   $sql = call('sql_query', "SELECT * FROM users WHERE user = '$username'");
   $fetch = call('sql_fetch_array',$sql);
   if ($fetch['user'] == $username) {
      $error[] = 'Username is already taken!';
      return false;
   }
   if (empty($username)) {
      $error[] = 'You did not enter a username'; //idiot how on earth are people meant to know who u are!
      return false;
   }
   if (strlen($password) < 6) {
      $error[] = 'password must be 6 characters or longer!';
      return false;
   }
   $decodedusername = str_replace('&lt;', '<', $username);
   $decodedusername = str_replace('&gt;', '>', $decodedusername);
   if (strlen($decodedusername) > 16) {
      $error[] = 'Your username is too long, it must be below 16 characters';
      return false;
   }
   if ($password != $vpassword) {
      $error[] = 'The passwords entered to do not match';
      return false;
   }
   if (!preg_match("/^([a-z0-9._-](+[a-z0-9])*)+@[a-z0-9.-]+.[a-z]{2,6}$/i", $email)) {
      $error[] = 'The email address entered is not valid';
      return false;
   }
   if (strpos($username, ',') !== false) {
      $error[] = 'Commas (,) are not allowed in a username';
      return false;
   }
   if ($settings['register_approval'] == 'none')
      $group = '2';
   else
      $group = '1';
   if(!errors()) {
      $sql = call('sql_query', "INSERT INTO users (user, pass, email, ip, regdate, lastlogin, membergroup, theme) VALUES('$username', '$password', '$email', '" . call('visitor_ip') . "', '" . time() . "', 'Never', '$group', '".$settings['site_theme']."')");
      if($settings['register_approval'] == 'email') {
         $mail = new PHPMailer();
         //last inserted ID
         $id = call('sql_insert_id');
         //Generate MD5 hash key
         $key = call('generate_key', 6);
         //Put together the key string
         $key_string = "key=$key&id=$id";
         //Insert into database
         $query = call('sql_query', "INSERT INTO activation_keys (user_id , key_number) VALUES ('$id', '$key')");
         if ($settings['mail'] == 'sendmail')
            $mail->IsMail();
         elseif ($settings['mail'] == 'smtp') {
            $mail->IsSMTP();
            $mail->Host = $settings['smtp_host'];
            $mail->SMTPAuth = true;
            $mail->Username = $settings['smtp_username'];
            $mail->Password = $settings['smtp_password'];
         }
         $mail->FromName = $settings['site_name'];
         $mail->From = $settings['email'];
         $mail->AddAddress("$email");
         $mail->Subject = 'Account Activation at' . $settings['site_name'] . '';
         $mail->Body = "Please click the following link to activate your account:n--------n" . $settings['site_url'] . "/index.php?act=activate&$key_string";
         if (!$mail->Send()) {
            $error[] = "Error sending: " . $mail->ErrorInfo;
            return false;
         }
         else
            return true;
      }
   }
}
?>