Underfind index in session - php

Question

I try to load a session as I want with me into my handler. But the line 8 says that "during the find index" what is the error in my controller? It is a user name that I want to use a database to retrieve the id of the person.
Controller:
<?php
require_once ("View/PersonInfoView.php");
require_once ("Handler/UserHandler.php");
class PersonInfoController{
public function DoPersonInfo(){
$Personinfoview = new PersonInfoView();
$UserHandler = new UserHandler();
$PK = $UserHandler->GetUserID($_SESSION['Person']);
$Person_array = $UserHandler->ListPerson($PK);
$Personinfoview->Personbox($Person_array);
}
}
I set Session :
<?php
require_once ("Handler/Userhandler.php");
require_once ("Controller/LoginController.php");
class DologinHandler{
public function Login(){
if(isset($_REQUEST['is_ajax']))
{
$LoginController = new LoginController();
$username = $_REQUEST['username'];
$password = $_REQUEST['password'];
$_SESSION['Person'] = $username;
$UserHandler = new UserHandler();
$sign = $UserHandler -> controllDB($username,$password);
if($sign == true)
{
echo 'success';
return true;
}
else
{
echo 'error';
return false;
}
}
}
}
$loginclass = new DologinHandler();
$loginclass->Login();

Answer 1

I'm guessing your $_REQUEST doesn't contain the key Person. Try doing a var_dump() on $_REQUEST to see what it contains.
Other than that, I suggest you implement some kind of error handeling when calling $UserHandler->GetUserID()
For instance.
try {
$PK = $UserHandler->GetUserID($_SESSION['Person']);
} catch(Exception $e) {
echo($e->getMessage());
}
Read about exceptions.