$_SESSION error:Notice: Undefined offset: 0

Question

Hi sorry I am just a baby in PHP. I want to get the value of $_SESSION['username'] but it gives me this error

Notice: Undefined offset: 0

Please see my code below. Your help will be greatly appreciated. Thanks.

<?php
session_start();

$_SESSION['username']='andrew';
$_SESSION['password']='pass';

$session=count($_SESSION);
echo "There are {$session} current sessions!";
echo "<br />";
echo $_SESSION[0]; //I want an output "andrew" but it fails.

?>

You are treating `$_SESSION` like an indexed array (numbers) instead of an associative array (keys). — dstudeba, Jan 05 '17 at 06:25
Also, your session is scoped by the cookie. You can't find the number of active sessions that way. — Mark Tomlin, Jan 05 '17 at 07:15

score 0 · Answer 1 · answered Jan 05 '17 at 07:00

Use

session_start();

$_SESSION['username']='andrew'; 
$_SESSION['password']='pass';

$session=count($_SESSION); 
echo "There are {$session} current sessions!"; echo "<br />";
echo $_SESSION['username']; //I want an output "andrew" but it fails.

?>

$_SESSION error:Notice: Undefined offset: 0

1 Answers1