controller problem php

<?php

require_once("../Model/registro.php");



      $username =$_POST["username"];
      $email =$_POST["email"];
      $password =$_POST["password"];
      $confirm_password =$_POST["confirm_password"];


     $reg = new Registro();

     $t=$reg->registrar($username,$email,$password,$confirm_password);

     var_dump($t);

    if($t != 1){


        return $t;
    }else{
        return $t;

     }
//------------------------------------------------------------------------------------------
Respuesta en pantalla al correr directamente  COntrollers/registro.php


string(20) "soy dieferente de uno"