Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Aaron Heimlich

If that code is not executed in the same request as code that calls
session_start(), then you will have problems (though that doesn't appear to
be the case).

Try adding a call to session_start() just before that code is run, see if
that helps at all.

Is there any chance that you could send me all of this? It would be a lot
easier for me to help you if you could.

On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:


Ah, it's actually not... here's the breakdown of the
included files:

index.php (sample "normal" page which has the login
box in it)

  (included at start of index.php)
  -page_init.php
 (included at start of page_init.php)
 -dbconnect.php //connects database
 -startsession.php //CALLS SESSION_START() and
contains object-like fns for session handling
  -header.php  (included after page_init.php. DOES NOT
call session_start as it's already called in
page_init.php's included startsession.php page.
Contains all of the jquery/ajax which you mentioned
below, and all HTML header stuff)





--- Aaron Heimlich <[EMAIL PROTECTED]> wrote:

> Question: is session_start() called on the page
> where this code is run?
>
> var loggedin = ;
>
> if (loggedin == true)
> {
>
> $("div#login").hide();
>  $("div#logout").unhide();
> }
> else
> {
>$("div#login").unhide();
>$("div#logout").hide();
> }
>
> On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:
> >
> > I am indeed not using output buffering. I call
> > session_start as the first thing on every page,
> before
> > the headers are sent. I also call session_start on
> my
> > login page, first thing.
> >
> > If I use output buffering, do you think that would
> fix
> > things? I could call session_start() again as a
> > callback function after the ajax finishes,
> perhaps...?
> >
> > thanks,
> > -kim
> >
> > --- Aaron Heimlich <[EMAIL PROTECTED]>
> wrote:
> >
> > > On 3/30/07, Kim Johnson <[EMAIL PROTECTED]>
> wrote:
> > > >
> > > > Should I be recalling
> > > > session_start?
> > >
> > >
> > > As a general rule, you should call
> session_start()
> > > in *every* PHP script
> > > that accesses $_SESSION. Where you call it
> depends
> > > on whether you're using
> > > output buffering or not[1], but it must *always*
> be
> > > *before* you access
> > > $_SESSION for the first time in that script.
> > >
> > >
> > > [1] If you're not using output buffering (
> > > http://us.php.net/manual/en/ref.outcontrol.php),
> > > then you *must* call
> > > session_start() *before* any output is sent to
> the
> > > browser, otherwise you'll
> > > get a "can't send headers because headers were
> > > already sent" error (this
> > > means that the call to session_start() should
> > > probably be the very first
> > > thing your script does). If you are using output
> > > buffering, then you can
> > > call it pretty much anywhere in your script
> before
> > > you send the contents of
> > > the output buffer to the browser.
> > >
> > > --
> > > Aaron Heimlich
> > > Web Developer
> > > [EMAIL PROTECTED]
> > > http://aheimlich.freepgs.com
> > > >
> ___
> > > jQuery mailing list
> > > discuss@jquery.com
> > > http://jquery.com/discuss/
> > >
> >
> >
> >
> >
> >
> >
>


> > No need to miss a message. Get email on-the-go
> > with Yahoo! Mail for Mobile. Get started.
> > http://mobile.yahoo.com/mail
> >
> > ___
> > jQuery mailing list
> > discuss@jquery.com
> > http://jquery.com/discuss/
> >
>
>
>
> --
> Aaron Heimlich
> Web Developer
> [EMAIL PROTECTED]
> http://aheimlich.freepgs.com
> > ___
> jQuery mailing list
> discuss@jquery.com
> http://jquery.com/discuss/
>






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http://answers.yahoo.com/dir/?link=list&sid=396545367

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Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Kim Johnson
Ah, it's actually not... here's the breakdown of the
included files:

index.php (sample "normal" page which has the login
box in it)

  (included at start of index.php)
  -page_init.php
 (included at start of page_init.php)
 -dbconnect.php //connects database
 -startsession.php //CALLS SESSION_START() and
contains object-like fns for session handling
  -header.php  (included after page_init.php. DOES NOT
call session_start as it's already called in
page_init.php's included startsession.php page.
Contains all of the jquery/ajax which you mentioned
below, and all HTML header stuff)
  




--- Aaron Heimlich <[EMAIL PROTECTED]> wrote:

> Question: is session_start() called on the page
> where this code is run?
> 
> var loggedin = ;
> 
> if (loggedin == true)
> {
>   
> $("div#login").hide();
>  $("div#logout").unhide();
> }
> else
> {
>$("div#login").unhide();
>$("div#logout").hide();
> }
> 
> On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:
> >
> > I am indeed not using output buffering. I call
> > session_start as the first thing on every page,
> before
> > the headers are sent. I also call session_start on
> my
> > login page, first thing.
> >
> > If I use output buffering, do you think that would
> fix
> > things? I could call session_start() again as a
> > callback function after the ajax finishes,
> perhaps...?
> >
> > thanks,
> > -kim
> >
> > --- Aaron Heimlich <[EMAIL PROTECTED]>
> wrote:
> >
> > > On 3/30/07, Kim Johnson <[EMAIL PROTECTED]>
> wrote:
> > > >
> > > > Should I be recalling
> > > > session_start?
> > >
> > >
> > > As a general rule, you should call
> session_start()
> > > in *every* PHP script
> > > that accesses $_SESSION. Where you call it
> depends
> > > on whether you're using
> > > output buffering or not[1], but it must *always*
> be
> > > *before* you access
> > > $_SESSION for the first time in that script.
> > >
> > >
> > > [1] If you're not using output buffering (
> > > http://us.php.net/manual/en/ref.outcontrol.php),
> > > then you *must* call
> > > session_start() *before* any output is sent to
> the
> > > browser, otherwise you'll
> > > get a "can't send headers because headers were
> > > already sent" error (this
> > > means that the call to session_start() should
> > > probably be the very first
> > > thing your script does). If you are using output
> > > buffering, then you can
> > > call it pretty much anywhere in your script
> before
> > > you send the contents of
> > > the output buffer to the browser.
> > >
> > > --
> > > Aaron Heimlich
> > > Web Developer
> > > [EMAIL PROTECTED]
> > > http://aheimlich.freepgs.com
> > > >
> ___
> > > jQuery mailing list
> > > discuss@jquery.com
> > > http://jquery.com/discuss/
> > >
> >
> >
> >
> >
> >
> >
>

> > No need to miss a message. Get email on-the-go
> > with Yahoo! Mail for Mobile. Get started.
> > http://mobile.yahoo.com/mail
> >
> > ___
> > jQuery mailing list
> > discuss@jquery.com
> > http://jquery.com/discuss/
> >
> 
> 
> 
> -- 
> Aaron Heimlich
> Web Developer
> [EMAIL PROTECTED]
> http://aheimlich.freepgs.com
> > ___
> jQuery mailing list
> discuss@jquery.com
> http://jquery.com/discuss/
> 



 

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Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Aaron Heimlich

On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:


called via ajaxsubmit (async set to false).



You should *really* avoid doing this as it completely freezes the entire
browser until the request is complete (very bad!!). I highly recommend that
you check out Mike Alsup's blockUI plugin (
http://www.malsup.com/jquery/block/) instead.

--
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Web Developer
[EMAIL PROTECTED]
http://aheimlich.freepgs.com
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Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Aaron Heimlich

Question: is session_start() called on the page where this code is run?

var loggedin = ;

if (loggedin == true)
{
  $("div#login").hide();
$("div#logout").unhide();
}
else
{
  $("div#login").unhide();
  $("div#logout").hide();
}

On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:


I am indeed not using output buffering. I call
session_start as the first thing on every page, before
the headers are sent. I also call session_start on my
login page, first thing.

If I use output buffering, do you think that would fix
things? I could call session_start() again as a
callback function after the ajax finishes, perhaps...?

thanks,
-kim

--- Aaron Heimlich <[EMAIL PROTECTED]> wrote:

> On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:
> >
> > Should I be recalling
> > session_start?
>
>
> As a general rule, you should call session_start()
> in *every* PHP script
> that accesses $_SESSION. Where you call it depends
> on whether you're using
> output buffering or not[1], but it must *always* be
> *before* you access
> $_SESSION for the first time in that script.
>
>
> [1] If you're not using output buffering (
> http://us.php.net/manual/en/ref.outcontrol.php),
> then you *must* call
> session_start() *before* any output is sent to the
> browser, otherwise you'll
> get a "can't send headers because headers were
> already sent" error (this
> means that the call to session_start() should
> probably be the very first
> thing your script does). If you are using output
> buffering, then you can
> call it pretty much anywhere in your script before
> you send the contents of
> the output buffer to the browser.
>
> --
> Aaron Heimlich
> Web Developer
> [EMAIL PROTECTED]
> http://aheimlich.freepgs.com
> > ___
> jQuery mailing list
> discuss@jquery.com
> http://jquery.com/discuss/
>






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with Yahoo! Mail for Mobile. Get started.
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http://jquery.com/discuss/





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[EMAIL PROTECTED]
http://aheimlich.freepgs.com
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http://jquery.com/discuss/


Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Kim Johnson
I am indeed not using output buffering. I call
session_start as the first thing on every page, before
the headers are sent. I also call session_start on my
login page, first thing. 

If I use output buffering, do you think that would fix
things? I could call session_start() again as a
callback function after the ajax finishes, perhaps...?

thanks,
-kim

--- Aaron Heimlich <[EMAIL PROTECTED]> wrote:

> On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:
> >
> > Should I be recalling
> > session_start?
> 
> 
> As a general rule, you should call session_start()
> in *every* PHP script
> that accesses $_SESSION. Where you call it depends
> on whether you're using
> output buffering or not[1], but it must *always* be
> *before* you access
> $_SESSION for the first time in that script.
> 
> 
> [1] If you're not using output buffering (
> http://us.php.net/manual/en/ref.outcontrol.php),
> then you *must* call
> session_start() *before* any output is sent to the
> browser, otherwise you'll
> get a "can't send headers because headers were
> already sent" error (this
> means that the call to session_start() should
> probably be the very first
> thing your script does). If you are using output
> buffering, then you can
> call it pretty much anywhere in your script before
> you send the contents of
> the output buffer to the browser.
> 
> -- 
> Aaron Heimlich
> Web Developer
> [EMAIL PROTECTED]
> http://aheimlich.freepgs.com
> > ___
> jQuery mailing list
> discuss@jquery.com
> http://jquery.com/discuss/
> 



 

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with Yahoo! Mail for Mobile. Get started.
http://mobile.yahoo.com/mail 

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Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Aaron Heimlich

As a side note, if you (or anyone else, for that matter) are having problems
with Tredosoft's MultipleIEs (http://tredosoft.com/Multiple_IE) and PHP
sessions, be sure to upgrade to at least the version that was released on
07/11/2006 (November 11, 2006) as versions before that had issues with
cookies and sessions.

On 3/30/07, Aaron Heimlich <[EMAIL PROTECTED]> wrote:


On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:
>
> Should I be recalling
> session_start?


As a general rule, you should call session_start() in *every* PHP script
that accesses $_SESSION. Where you call it depends on whether you're using
output buffering or not[1], but it must *always* be *before* you access
$_SESSION for the first time in that script.


[1] If you're not using output buffering (
http://us.php.net/manual/en/ref.outcontrol.php), then you *must* call
session_start() *before* any output is sent to the browser, otherwise you'll
get a "can't send headers because headers were already sent" error (this
means that the call to session_start() should probably be the very first
thing your script does). If you are using output buffering, then you can
call it pretty much anywhere in your script before you send the contents of
the output buffer to the browser.

--
Aaron Heimlich
Web Developer
[EMAIL PROTECTED]
http://aheimlich.freepgs.com





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[EMAIL PROTECTED]
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Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Aaron Heimlich

On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:


Should I be recalling
session_start?



As a general rule, you should call session_start() in *every* PHP script
that accesses $_SESSION. Where you call it depends on whether you're using
output buffering or not[1], but it must *always* be *before* you access
$_SESSION for the first time in that script.


[1] If you're not using output buffering (
http://us.php.net/manual/en/ref.outcontrol.php), then you *must* call
session_start() *before* any output is sent to the browser, otherwise you'll
get a "can't send headers because headers were already sent" error (this
means that the call to session_start() should probably be the very first
thing your script does). If you are using output buffering, then you can
call it pretty much anywhere in your script before you send the contents of
the output buffer to the browser.

--
Aaron Heimlich
Web Developer
[EMAIL PROTECTED]
http://aheimlich.freepgs.com
___
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discuss@jquery.com
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Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Kim Johnson
Thanks to both of you for your responses,

I guess I'm still having a hard time wrapping my head
around what AJAX is doing with my session vars that
make it impossible to use in my existing PHP files. I
was under the impression that session vars are just
... around in the browser, so if they are set on an
ajax called page, that I'd be able to use them in the
page I called it from.

Even if I passed the session ID back in the
requestText, let's say... based on the behavior I saw
it's not seeing any of the variables I set in the ajax
file, so it doesn't matter if I have one of 5
variables but not the rest. Users won't always set
variables in a cookie, as that's just if they want to
be remembered.

I could switch to ajaxform, I just don't understand
why that would work for accessing the sessions instead
of what I'm doing. Should I be recalling
session_start? Or just reloading the whole page and
not bothering with ajax? etc...

thanks,
-kim
--- Jake McGraw <[EMAIL PROTECTED]> wrote:

> I believe you aren't handling the session correctly,
> remember, AJAX
> calls don't automatically attach the session ID to
> your URL variables,
> so you have to do it manually (if it's not in the
> cookie), either by
> directly attaching to the target url:
> 
> $.getJSON("target.php?sid="+,...,...);
> 
> or within you arguments (my preferred method):
> 
> $.getJSON("target.php",{sid:,...},...);
> 
> Then on the server side:
> 
> // Check if our session is still active
> if (session_id() == "") {
> // Not active, check if sid was sent
> if (!$_REQUEST['sid']) {
> // Not sent, bounce them out (or attempt to
> log them in)
> } else {
> session_id($_REQUEST['sid']);
> session_start();
> }
> }
> 
> Note, that this is the bare bones way of doing it
> and I can't vouch
> for the security. You're probably best off creating
> a class for
> handling sessions.
> 
> - jake
> On 3/30/07, Erik
> Beeson <[EMAIL PROTECTED]> wrote:
> > I don't know much about your specific problem, but
> I thought I'd share
> > how I do AJAXified login. First I have a form with
> action set to the
> > login page so it will work without javascript.
> Then I hijack the form
> > with ajaxForm() from the form plugin. I have the
> ajax return JSON and
> > have a callback function like:
> >
> > function(data) {
> >   if(data.loggedIn) {
> > // Do logged in stuff
> >   } else {
> > $('#login_error').html(data.errorMessage);
> >   }
> > }
> >
> > Also, I use asynchronis  ajax and disable the
> fields and display an
> > indicator in the form plugin's beforeSubmit()
> function. The blockUI
> > plugin is good for doing this kind of thing.
> >
> > Hope it helps.
> >
> > --Erik
> >
> > On 3/30/07, Kim Johnson <[EMAIL PROTECTED]>
> wrote:
> > > Hi folks,
> > >
> > > I apologize if this is a little less Jquery and
> a
> > > little more "general AJAX/PHP" in nature, but I
> am
> > > completely stuck and was hoping there's tribal
> > > knowledge I failed to learn.
> > >
> > > I have a login panel on each page of my site.
> The
> > > actual authentication takes place in a file
> called
> > > login.php, called via ajaxsubmit (async set to
> false).
> > > login.php calls a few functions that are in an
> > > included file called startsession.php (meaning,
> > > startsession.php is included in every normal
> page;
> > > it's not called/included using ajax or
> anything).
> > > These startsession functions handle setting
> $_SESSION
> > > vars once the user is authenticated (or removes
> them
> > > if the user is logged out or information is
> corrupt,
> > > etc).
> > >
> > > Both the regular page and login.php call
> > > session_start().
> > >
> > > I'm seeing some very weird behavior.
> > >
> > > startsession appears to be setting the $_SESSION
> vars
> > > correctly. The problem is, they don't seem to 
> be
> > > sticking. First of all, startsession.php appears
> to
> > > refresh itself AFTER the ajax call is complete,
> even
> > > though the only places this file would be in are
> in
> > > login.php (already called in ajaxsubmit) and the
> > > regular file. When startsession.php refreshes
> itself,
> > > it doesn't see the $_SESSION vars and
> subsequently
> > > logs me out.
> > >
> > > Furthermore, I was under the impression that I
> could
> > > do something like this, after the ajax call:
> > >
> > > var loggedin = ;
> > >
> > > if (loggedin == true)
> > > {
> > >
> $("div#login").hide(); 
> $("div#logout").unhide();
> > > }
> > > else
> > > {
> > > $("div#login").unhide();
> > > $("div#logout").hide();
> > > }
> > >
> > > I had been hoping to avoid reading the
> responseText...
> > > though after looking at it now, I'm realizing
> that
> > > there's no way this would work; even though
> session
> > > vars are set on, well, the session, it seems
> that
> > > you'd have to reload the page for PHP to pick it
> up,
> > > period.
> > >
> > > Any help would be greatly appr

Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Jake McGraw
I believe you aren't handling the session correctly, remember, AJAX
calls don't automatically attach the session ID to your URL variables,
so you have to do it manually (if it's not in the cookie), either by
directly attaching to the target url:

$.getJSON("target.php?sid="+,...,...);

or within you arguments (my preferred method):

$.getJSON("target.php",{sid:,...},...);

Then on the server side:

// Check if our session is still active
if (session_id() == "") {
// Not active, check if sid was sent
if (!$_REQUEST['sid']) {
// Not sent, bounce them out (or attempt to log them in)
} else {
session_id($_REQUEST['sid']);
session_start();
}
}

Note, that this is the bare bones way of doing it and I can't vouch
for the security. You're probably best off creating a class for
handling sessions.

- jake
On 3/30/07, Erik
Beeson <[EMAIL PROTECTED]> wrote:
> I don't know much about your specific problem, but I thought I'd share
> how I do AJAXified login. First I have a form with action set to the
> login page so it will work without javascript. Then I hijack the form
> with ajaxForm() from the form plugin. I have the ajax return JSON and
> have a callback function like:
>
> function(data) {
>   if(data.loggedIn) {
> // Do logged in stuff
>   } else {
> $('#login_error').html(data.errorMessage);
>   }
> }
>
> Also, I use asynchronis  ajax and disable the fields and display an
> indicator in the form plugin's beforeSubmit() function. The blockUI
> plugin is good for doing this kind of thing.
>
> Hope it helps.
>
> --Erik
>
> On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:
> > Hi folks,
> >
> > I apologize if this is a little less Jquery and a
> > little more "general AJAX/PHP" in nature, but I am
> > completely stuck and was hoping there's tribal
> > knowledge I failed to learn.
> >
> > I have a login panel on each page of my site. The
> > actual authentication takes place in a file called
> > login.php, called via ajaxsubmit (async set to false).
> > login.php calls a few functions that are in an
> > included file called startsession.php (meaning,
> > startsession.php is included in every normal page;
> > it's not called/included using ajax or anything).
> > These startsession functions handle setting $_SESSION
> > vars once the user is authenticated (or removes them
> > if the user is logged out or information is corrupt,
> > etc).
> >
> > Both the regular page and login.php call
> > session_start().
> >
> > I'm seeing some very weird behavior.
> >
> > startsession appears to be setting the $_SESSION vars
> > correctly. The problem is, they don't seem to  be
> > sticking. First of all, startsession.php appears to
> > refresh itself AFTER the ajax call is complete, even
> > though the only places this file would be in are in
> > login.php (already called in ajaxsubmit) and the
> > regular file. When startsession.php refreshes itself,
> > it doesn't see the $_SESSION vars and subsequently
> > logs me out.
> >
> > Furthermore, I was under the impression that I could
> > do something like this, after the ajax call:
> >
> > var loggedin = ;
> >
> > if (loggedin == true)
> > {
> > $("div#login").hide();  
> > $("div#logout").unhide();
> > }
> > else
> > {
> > $("div#login").unhide();
> > $("div#logout").hide();
> > }
> >
> > I had been hoping to avoid reading the responseText...
> > though after looking at it now, I'm realizing that
> > there's no way this would work; even though session
> > vars are set on, well, the session, it seems that
> > you'd have to reload the page for PHP to pick it up,
> > period.
> >
> > Any help would be greatly appreciated. I know this is
> > probably something easy. :/
> >
> > thanks,
> > -kim
> >
> >
> >
> > 
> > No need to miss a message. Get email on-the-go
> > with Yahoo! Mail for Mobile. Get started.
> > http://mobile.yahoo.com/mail
> >
> > ___
> > jQuery mailing list
> > discuss@jquery.com
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Re: [jQuery] Jquery, AJAX, and php session variables

2007-03-30 Thread Erik Beeson
I don't know much about your specific problem, but I thought I'd share
how I do AJAXified login. First I have a form with action set to the
login page so it will work without javascript. Then I hijack the form
with ajaxForm() from the form plugin. I have the ajax return JSON and
have a callback function like:

function(data) {
  if(data.loggedIn) {
// Do logged in stuff
  } else {
$('#login_error').html(data.errorMessage);
  }
}

Also, I use asynchronis  ajax and disable the fields and display an
indicator in the form plugin's beforeSubmit() function. The blockUI
plugin is good for doing this kind of thing.

Hope it helps.

--Erik

On 3/30/07, Kim Johnson <[EMAIL PROTECTED]> wrote:
> Hi folks,
>
> I apologize if this is a little less Jquery and a
> little more "general AJAX/PHP" in nature, but I am
> completely stuck and was hoping there's tribal
> knowledge I failed to learn.
>
> I have a login panel on each page of my site. The
> actual authentication takes place in a file called
> login.php, called via ajaxsubmit (async set to false).
> login.php calls a few functions that are in an
> included file called startsession.php (meaning,
> startsession.php is included in every normal page;
> it's not called/included using ajax or anything).
> These startsession functions handle setting $_SESSION
> vars once the user is authenticated (or removes them
> if the user is logged out or information is corrupt,
> etc).
>
> Both the regular page and login.php call
> session_start().
>
> I'm seeing some very weird behavior.
>
> startsession appears to be setting the $_SESSION vars
> correctly. The problem is, they don't seem to  be
> sticking. First of all, startsession.php appears to
> refresh itself AFTER the ajax call is complete, even
> though the only places this file would be in are in
> login.php (already called in ajaxsubmit) and the
> regular file. When startsession.php refreshes itself,
> it doesn't see the $_SESSION vars and subsequently
> logs me out.
>
> Furthermore, I was under the impression that I could
> do something like this, after the ajax call:
>
> var loggedin = ;
>
> if (loggedin == true)
> {
> $("div#login").hide();  
> $("div#logout").unhide();
> }
> else
> {
> $("div#login").unhide();
> $("div#logout").hide();
> }
>
> I had been hoping to avoid reading the responseText...
> though after looking at it now, I'm realizing that
> there's no way this would work; even though session
> vars are set on, well, the session, it seems that
> you'd have to reload the page for PHP to pick it up,
> period.
>
> Any help would be greatly appreciated. I know this is
> probably something easy. :/
>
> thanks,
> -kim
>
>
>
> 
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