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I have a site made with php which uses server side sessions throughout the site.
In fact, it's a site with a user login which depends on session variables and if there were a problem with all session variables, no pages would load at all.
On the site, there's an iframe that holds a feed of little messages from other users.
Those little messages have clickable photos next to them that open the user's profile.
Now, each page requires some formatting to open the user's profile on that specific page...there's really only a few problem pages, but those pages have to have the onclick functions formatted a little differently or they break the page.
So I set a session variable on each page ($_SESSION["current_page"]) that lets the feed know how to format the clickable photos. Now Firefox, Opera, Chrome, Safari all work as they are supposed to.
But IE6 and IE7 are having problems on the pages that require special formatting.
So after pulling my hair out a bit, I eventually got around to printing my session variables form the server.
And lo and behold, on the special pages, ($_SESSION["current_page"]) is always set to "main" instead of "special1" or "special2".
I printed the same session variable in Firefox and all the other browsers I mentioned and they print out "special1" or "special2" as they're supposed to.
Can anyone think of something - possibly related to the fact that the feed is in an iframe??? - that would cause IE to treat server side session variables differently or somehow launch page "main" silently in the background?
I have checked the feed very carefully for any reference to page "main" - it doesn't seem like there's any ways it's loading that page.
this doesn't make sense to me.
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session_start() creates a session or resumes the current one based on a session identifier passed via a GET or POST request, or passed via a cookie. When session_start() is called or when a session auto starts, PHP will call the open and read session save handlers.
Starting a PHP Session A PHP session is easily started by making a call to the session_start() function. This function first checks if a session is already started and if none is started then it starts one. It is recommended to put the call to session_start() at the beginning of the page.
php class Session { private $logged_in=false; public $user_id; function __construct() { session_start(); $this->check_login(); if($this->logged_in) { // actions to take right away if user is logged in } else { // actions to take right away if user is not logged in } } public function is_logged_in() { return $this-> ...
Check the name of the server machine. IE has problems with machine names that contain '-' or '_' - they cannot maintain a session! I've had this problem twice in the past, and it always takes me weeks to figure out, and I'm shocked IE hasn't fixed it.
Just rename the machine to have no strange characters! You can get it working if you just use the IP address of the server in the url to test.
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IE has cookie issues with it's handling of iFrames which maybe causing the session issue you mention, take a look at these links
http://adamyoung.net/IE-Blocking-iFrame-Cookies
http://gathadams.com/2007/06/25/how-to-set-third-party-cookies-with-iframe-facebook-applications/
http://nileshtrivedi.in/blog/2008/09/01/iframe-cookies-and-internet-explorer/
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