visitor (0 QPoints)
  • FR
  • EN
  • NL
  • DE
  • ES
315 experts, 1193 registered users, 1659 questions already answered
European Experts Exchange, the very best site for high-quality IT solutions

New Improved Search!

 


05/10/2011 1h30 : Steve Jobs is dead, the father of Apple ][ is gone, we are all orphaned.

Languages :: PHP :: Link and session
By: mbarka U.S.A.  Date: 19/06/2003 00:00:00  English  Points: 300 Status: Answered
Quality : Excellent
I have a code like this
<?php
session_start();
global $Login,$Logout;
session_register("Login");
session_register("Logout");
......some code

if ($HTTP_SESSION_VARS[login] == "1") {
echo "You are inlogged
";
echo 'Klick<a href="side2.php?logout=1">here</a>';
}
?>

/////Side2.php

<?php
session_start();
if ($HTTP_SESSION_VARS[logout] == "1"){
session_unset();
session_destroy();
echo 'Du är utloggad' ;
?>

the problem is i get a white side with the right adress

<A HREF="http://webbfk.tk.ah.com/~txxeu0bb/side2.php?logout=1">http://webbfk.tk.ah.com/~txxeu0bb/side2.php?logout=1</a>

my question how to use $HTTP_SESSION_VARS when using <a href
By: Wubbie Date: 19/06/2003 08:01:00 English  Type : Answer
I think you need to put quotes around your session variables -- as it is, they're not actually being looked up.

So instead of $HTTP_SESSION_VARS[logout] use $HTTP_SESSION_VARS['logout']

Also, if you have a newer version of PHP (4.0+ maybe?) try using $_SESSION['logout'] instead.

Post again if this does not solve your problem.
By: sumotimor Date: 19/06/2003 08:06:00 English  Type : Assist
Looks like you've got case-sensitive issues with your variable names. $logout != $Logout. Change all occurences of "Logout" to "logout" and I think it will work.

By default, PHP uses cookies to store the sessionID for the client, so you don't have to worry about propagating the sessID in your <a> links.
By: mbarka Date: 19/06/2003 08:30:00 English  Type : Comment
When i use the code like this
if ($HTTP_SESSION_VARS[Login] == "1") {
echo "You are inlogged
";
$Logout=1;
echo 'Klick<a href="side2.php">here</a>';
}
?>

this code works
<?php
session_start();
if ($HTTP_SESSION_VARS[Logout] == "1"){
session_unset();
session_destroy();
echo 'Du är utloggad' ;
?>

but i doesnt work like this
if ($HTTP_SESSION_VARS[Login] == "1") {
echo "You are inlogged
";
//$Logout=1;
echo 'Klick<a href="side2.php?Logout=1">here</a>';
}
?>
By: Wubbie Date: 19/06/2003 08:32:00 English  Type : Assist
sumotimor is correct. :)

One more thing to remember is that == does not do type comparison, this usually still works but CAN still get you in trouble. You need to use === for type and value comparison.
By: Wubbie Date: 19/06/2003 08:33:00 English  Type : Assist
You do need the session_start() in there to reinitialize your session.
By: VGR Date: 20/06/2003 05:40:00 English  Type : Assist
sumotimor is 100% right

here's a fixed code :

<?php
session_start();
global $Login,$Logout; // useless, even without register_globals=On in php.ini
// personally, I affect values BEFORE session_registering ; it works better
session_register("Login"); // so you use "old-style" registration : you thus can't use afterwards $_SESSION['Login']
session_register("Logout");
......some code

if ($Login == "1") { // you CAN NOT MIX styles to access session variables !
echo "You are inlogged
"; // indent code
echo 'Klick <a href="side2.php?logout=1">here</a>'; // double quotes are useless if no space possible inside the link
} // if login=1
?>

/////Side2.php

<?php
session_start();
if (isset($_GET['logout'])) $Logout=$_GET['logout']; // beware of the case
// else $Logout remains it's session value (register_globals=On)
if ($Logout == "1"){
session_unset();
session_destroy();
echo 'Du är utloggad' ;
} else echo "no logout provided";
?>

Do register to be able to answer

©2010 These pages are served without commercial sponsorship. (No popup ads, etc...). Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE.
Please DO link to this page! Post to Twitter Post to Plurk Post to Yahoo Buzz Post to Delicious Post to Digg Post to Facebook Post to MySpace Post to Ping.fm Post to Reddit Post to StumbleUpon

EContact
browser fav
page generated in 86.428880 milliseconds

Why Google AdSense ads ?
compteur
 Ranking-Hits PageRank for this page