Undefined index: username HELP NEWBIE

Posted on 16th Feb 2014 07:03 pm by admin

I am trying a simple login/logout for my website. It works well with checking if the username exists in the database to logging in. I used $_SESSION['username']=$myusername; However, when I log-out, then I go to a page with this code

Code: <?php

session_start();

if($_SESSION['username']) //line5
echo "Welcome, ".$_SESSION['username']."!<br /><a href='logout.php'>Logout.</a>";
else
die ("You must be logged in!");

?>

It gives me an error. It says Notice: Undefined index: username in C:wampwwwdatbasmember.php on line 5

I just want to know how to fix this. Thank you

Your Answer:

Login to answer

Other forums

date("now") prints out wrong date ?
Hi Guys
Anyone know why and how I can fix it ?

MySQL Does not UPDATE- SQLString Problem
vb Syntax (Toggle Plain Text) 1. SQL = "UPDATE sampletable SET column1 = 'C1sample1'"

Call to undefined function mysql_fetch_accoc()
New to php/mysql coding. What's wrong with this sequence, or am I
just not seeing to obvious?

How do I get the row number from from an sql table query
Hi all

I have a table that I query and it returns a number of rows.
mysql_num_rows($query)

How to secure my login data to my database?
Hi there,

It may be a stupid question but I don't know how to secure my login data to my data

Header is not working in IE
Hi ! header function is not working in IE but it works in FF, Safari, Chrome. any help please. :

Checking BOM Authorization Group
Hai Friends,

I have developed a mulitilevel BOM display report. End users have been assig

PHP Directory Listing Not working
Hey Guys,

I need help, I tried a ton of directory listing scripts and they all don't work. Al

Update data to upper case in parent/child tables
Hi Gurus!

In production we have a product table and which is being reference by many tabl

Need Successful Return
Hello I am currently working a form here, and I have everything figured out except when I click the