//----------------------------------Model

 public function registrar($username,$email,$password,$confirm_password)
	   {
                    $this->has= crypt($password);
				    $this->has_con= crypt($confirm_password);
				    $p="ok";
				    $registro=$this->conexion->conexion->query("insert into registro_por (nombre, correo, pass, conf_pass) values( '$username','$email','$this->has','$this->has_con')");

	   	 try{



				     if($registro)
				     {
		                      return $p;
				     }else{
				     	throw new Exception("Fallos la ejecución");
				     	 return false;
				     }



	   	 }catch(Exception $e){

                 echo 'Message: '.$e->getMessage();

	   	 }






	 }