PHP Session problem Notice: Undefined index:

Hi guys,
when switched to the newer version of php
i got some problems with sessions

the scenario is
file: login.php

<?php
session_start();

$_SESSION['Username'] = $Username = $_POST['login'];
$_SESSION['Password'] = $Password = $_POST['password'];
header("Location: proccess.php");
?>


now some another page

file: parse.php

<?php
session_start();
$Username = $_SESSION['Username'];
$Password = $_SESSION['Password'];

echo $Username;
echo "\n";
echo $Username;

?>



now the problem is in parse.php when it's executed

Notice: Undefined index: Username in C:\xampp\htdocs\clients\parse.php on line 3

Notice: Undefined index: Password in C:\xampp\htdocs\clients\parse.php on line 4


can anyone help me plz

 

fixed

the problem was because the <?
it should be <?php

 

You are getting that error most likely because the $_SESSION['Username'] variable/index doesn't exist in the session array. To avoid that error/notice, you'd want to check for that variable before using it.

For example:

if (!empty($_SESSION['Username'])) {
    $Username = $_SESSION['Username'];
}

Code (markup):

Or if you are using a new version of PHP, you could do something like this when assigning variables:

$Username = $_SESSION['Username'] ?: null;
$Password = $_SESSION['Password'] ?: null;

Code (markup):

The same method could be used in your login.php script when accessing the $_POST variables.

 

You can use even isset function to check whether session variable is set or not

if(isset($_SESSION['Username']))
{
echo $_SESSION['username'];
}

Code (markup):