Reply to Re: Can't read $_SESSION variables set by previous request, AJAX

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Posted by Jerry Stuckle on 02/19/07 12:24

Evil Otto wrote:
> session_start() is called exactly once, at the beginning of the main
> script.
>
> There are multiple requests, but there is ONE page.
>
> I've tried putting session_start() at the beginning of the functions
> that get called, but they throw "session has already been started"
> errors.
>
>
>
> On Feb 18, 9:40 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
>> Evil Otto wrote:
>>> The only error i get is an undefined index message when the third
>>> request tries to access the $_SESSION variable.
>>> On Feb 18, 8:37 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
>>>> Evil Otto wrote:
>>>>> I removed the ?> and <?php tags from where you saw the whitespace, so
>>>>> there's no extraneous whitespace. Had no effect on the problem I'm
>>>>> seeing; the third request still cannot see changes to the $_SESSION
>>>>> variable made by the second.
>>>>> On Feb 18, 3:24 pm, Kimmo Laine <s...@outolempi.net> wrote:
>>>>>> Evil Otto kirjoitti:
>>>>>>> There's no output going to the browser before session_start(). The
>>>>>>> top of my script looks like this:
>>>>>>> --quote
>>>>>>> <?php
>>>>>>> error_reporting(E_ALL);
>>>>>>> ini_set("display_errors","1");
>>>>>>> ?>
>>>>>> Output starts here cos you have a gap between two php tags. It's the
>>>>>> whitespace effect.
>>>>>>> <?php
>>>>>> --
>>>>>> "En ole paha ihminen, mutta omenat ovat elinkeinoni." -Perttu Sirviö
>>>>>> s...@outolempi.net | Gedoon-S @ IRCnet | rot13(x...@bhgbyrzcv.arg)
>>>> And can you be sure that *NOTHING* in your include.php file generates
>>>> output - including leading or trailing blanks, newline characters, etc.?
>>>> What do you get for error messages?
>>>> --
>>>> ==================
>>>> Remove the "x" from my email address
>>>> Jerry Stuckle
>>>> JDS Computer Training Corp.
>>>> jstuck...@attglobal.net
>>>> ==================
>> In that case there are only two options. Either the second page didn't
>> call session_start() before any output, or the third page didn't do it.
>>
>> Sessions work. If the second page properly starts the session and sets
>> the session info, and the third page properly starts the session, it
>> does work.
>>
>> I know this sounds blunt - and I'm really sorry, I don't mean to be
>> blunt about it. But sessions do work. If you have a case where the
>> second page sets a session variable and the third page can't read it,
>> one of two things is wrong:
>>
>> 1. The second page didn't actually set the $_SESSION value in the
>> session (possibly because session_start wasn't called early enough - but
>> there could be other reasons), or
>> 2. The third page can't read the $_SESSION value. In this case if it
>> is set, about the only option you have is that session_start() wasn't
>> called soon enough.
>>
>> So, if the third page (where the value is read) is correct, perhaps the
>> second page (where it is set) has a problem?
>>
>> It's got to be one or the other.
>>
>> --
>> ==================
>> Remove the "x" from my email address
>> Jerry Stuckle
>> JDS Computer Training Corp.
>> jstuck...@attglobal.net
>> ==================
>
>

Hmmm, when you say

"The content it returns includes a link that calls the same variable,
but I get an error that says the index isn't defined."

what do you mean exactly? Is this an html link? A function call?


--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

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