<?php
require('includes/core.inc.php');
require('includes/database/connect.db.php');
 session_start();
if(isset($_POST['Register'])) {

  $username=$_POST['Username'];
  $password=$_POST['Password'];
        $query= "INSERT into users (Username,Password) VALUES                 ('$username','$password')";
         $res = mysql_query($query);
         if($res){
          header("Location:index.php");
    }
}


  ?>

<?php
   require('includes/core.inc.php');
   session_start();
   **echo "Welcome".$_SESSION['Username'];**
   if(isset($_POST['send'])){
   if(send_msg($_POST['sender'],$_POST['message'])){
    //echo "Message sent ...";
    }else{
    //echo "failed to sent ";
}
 }
 ?>