PHP unable to detect session value in firefox

Question

In IE, the session work, but in Firefox, it always return empty value.

I have set $_SESSION['apple']='1' in index.php

When executing a Flex 4/flash app that will allow user to browse an image file using filereference for upload to the server (this app is image uploader), the file will then pass to second.php to validate whether it is an image.

In the second.php itself, I have a function that need to retrieve $_SESSION['apple'] value which was set in index.php, it always return empty string in Firefox and Chrome but work on IE9.

Has anyone came across the same problem with $_SESSION on Firefox and Chrome?

How do I make sure the second.php can retrieve $_SESSION?

Have you tried displaying the session id? see if it differs from script to script? — Catalin
– Catalin, Commented May 20, 2011 at 14:52
Flash tends to not play nice with Firefox when sessions are involved. Check the flash-based hits on the server, and you'll most likely see that the session cookie isn't being sent. — Marc B
– Marc B, Commented May 20, 2011 at 14:54

Steffen · Accepted Answer · 2011-05-20 15:23:28Z

1

Adobe Products like Flash/Flex do not pass browser cookies back to the server in other browsers than IE. You need to pass the session ID back to the server on your own for every request from flash.

in PHP, you can enable the session with the following code:

 if (isset($_GET['session_id'])) session_id($_GET['session_id']);
 session_start();

If it doesn't work out for you and you have the suhosin/hardenet patch installed, you might have to turn session_cookie encryption off. (can't remember the exact option - one of my corworks once stubled upon such an issue)

answered May 20, 2011 at 15:23

Steffen

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bpeterson76 · Accepted Answer · 2011-05-20 15:38:27Z

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See corresponding bug and workaround.

You can find a lot of other bugs with the same problem:

edited May 20, 2011 at 15:38

bpeterson76

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answered May 20, 2011 at 14:51

Constantiner

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1 Comment

flashphp Over a year ago

arh, that old way to fix it. Any more method? How to retrieve $_SESSION value within flex application that will pass as a parameter to php?

Nanne · Accepted Answer · 2011-05-20 14:50:06Z

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As PHP runs on the server, it's not very likely it's the result of the browser. Most common problem is: did you use session_start() in all your php files that use the $_session in any way?

answered May 20, 2011 at 14:50

Nanne

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flashphp Over a year ago

Yes. Both has session_start();

Ariel Sommeria-Klein · Accepted Answer · 2014-03-14 16:06:45Z

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Try using AMFPHP, it will help you develop with PHP + Flex.

http://silexlabs.org/amfphp/

edited Mar 14, 2014 at 16:06

Ariel Sommeria-Klein

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answered May 20, 2011 at 14:51

metaforce

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