Can't access $_SESSION variable in PHP called from Flash

Question

I'm having difficulty accessing a $_SESSION variable.

I have session_start() at the beginning of the file.

I'm using jQuery uploadify and it calls a php backend file, which can't access $_SESSION variables, although other files outside could.

Could it have something to do with the way that flash (jquery uploadify) is calling the php?

Does anyone know how to circumvent this?

UPDATE: included session_id in the url but it didnt work.

$('#image_upload').uploadify({
    'uploader':     '../../frontend/jquery/plugins/uploadify/swf/uploadify.swf',
    'script':       "controllers/image_upload.php?SID='.session_id()'",
    'fileDataName': 'upload',
    'method':       'POST',
    'multi':        'true',
    'fileDesc':     'tseting',
    'fileExt':      '*.jpg; *.jpeg; *.png',
    'sizeLimit':    '100000000',
    'buttonText':   'Ladda upp bilder',
    'auto':         'true'
});

EDIT: i think i know what the problem is.

in the header information with livehtmlheader in FF it shows an error message:

 HTTP/1.x 404 Not Found

while the other regular page requests shows

 HTTP/1.x 200 OK

someone knows how to solve this?

EDIT: sorry i've had wrong. it was not cause by 404, that was a request to another file. there is NO request when posting with uploadify! no html header is sent. i think it uses another approach to get the php file with flash (uploadify.swf).

so there is no way of sending that sessid to my php file now i guess:( have to find some other way around

"Can't access" is somewhat vague. What's the error/notice message? — zneak
– zneak, Commented Jan 15, 2010 at 15:38
Use LiveHTTPHeaders to inspect the HTTP request jQuery is sending. Is it including the PHPSESSID cookie? — Frank Farmer
– Frank Farmer, Commented Jan 15, 2010 at 15:39
Your XMLHTTPRequests are probably missing the session ID. Either in the URL or in a cookie. — Gumbo
– Gumbo, Commented Jan 15, 2010 at 15:40
@frank farmer: could you give me some more detail, where and what to type? — ajsie
– ajsie, Commented Jan 15, 2010 at 17:02
How do you carry the session ID along? In the URL or with a cookie? — Gumbo
– Gumbo, Commented Jan 15, 2010 at 17:14

grapefrukt · Accepted Answer · 2010-01-15 15:41:45Z

2

In certain browsers (firefox iirc) "special" calls, such as file uploads and amf do not always send along the session cookie. The most practical way to sidestep this is to set it as a flashvar when embedding the flash and manually send it along with your request.

answered Jan 15, 2010 at 15:41

grapefrukt

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1 Comment

ajsie Over a year ago

don´t quite understand your solution. is it easy to implement and are there any tutorials?

dobs · Accepted Answer · 2011-02-08 18:08:29Z

0

http://www.uploadify.com/forums/discussion/606/io-error-php-session/p1

answered Feb 8, 2011 at 18:08

dobs

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Comments

Artjom Kurapov · Accepted Answer · 2010-01-15 16:24:36Z

0

Try adding manually "?SID=".session_id() to the URL.

answered Jan 15, 2010 at 16:24

Artjom Kurapov

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2 Comments

Gumbo Over a year ago

JavaScript is doing the request, not PHP. So session_id is not available.

Pekka Over a year ago

OP, you are missing opening and closing PHP tags in your implementation of Artjom's hint: <? ?>

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