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Languages :: PHP :: Session variables
By: PHP newbee U.S.A.  Date: 13/05/2003 00:00:00  English French  Points: 125 Status: Answered
Quality : Excellent
Hi,

I'm teaching myself PHP but having problems with sessions. I've read all previous posts regarding this but haven't solved my problem.

At the top of every PHP page I have:
session_start();

Now, from what I understand, as I am using PHP v4.3.1, to set a session variable I can do:
$_SESSION['MyVariable'] = "Hello World";

I can then access this session variable from that same page using:
echo $_SESSION['MyVariable'];

However, when I try and retrieve this session variable on another page, it doesn't find it - it doesn't seem to have been persisted in the session. I've read various contradicting solutions which don't seem to help.

Thanks in advance for any help.
By: VGR Date: 13/05/2003 00:24:00 English  Type : Comment
you are 100% right

show me at least two pages exposing the problem
By: VGR Date: 13/05/2003 00:25:00 English  Type : Comment
I suspect a silly string syntax error when retrieving the value
By: PHP newbee Date: 13/05/2003 00:33:00 English  Type : Comment
page1.php:
-----------
<?
session_start();
$_SESSION['MyVariable'] = "Hello World";
?>

<HTML>
<HEAD></HEAD>
<BODY>

<A HREF="page2.php">GO TO NEXT PAGE</A>
</BODY>
</HTML>

page2.php
---------
<?
session_start();
?>
<HTML>
<HEAD></HEAD>
<BODY>

<?
echo "The value of the session variable: MyVariable is: " . $_SESSION['MyVariable'];
?>
</BODY>
</HTML>
By: VGR Date: 13/05/2003 00:41:00 English  Type : Comment
nothing to say. It's perfect AFAIK.

I tested it and got :

The value of the session variable: MyVariable is: Hello World

I'm not surprised 8-)
By: PHP newbee Date: 13/05/2003 00:44:00 English  Type : Comment
I thought it was fine....it's not exactly a complicated bit of code! It just doesn't work for me. I can't work out why.

Could it be some setting in the php.ini file?
By: VGR Date: 13/05/2003 00:50:00 English  Type : Comment
surely, I can't see anything else possible.

I thought sessions were active by default
By: VGR Date: 13/05/2003 00:51:00 English  Type : Comment
I don't even ask you the contents of the [Session]
section of php.ini, I'm +/- sure it's ok
By: VGR Date: 13/05/2003 00:52:00 English  Type : Answer
may-be I've an idea :

isn't the drive you installed the session data on (session.save_path) a FAT16 drive ?
By: PHP newbee Date: 13/05/2003 00:59:00 English  Type : Comment
It's a FAT32 drive.
I haven't played around with the ini file so it should be fine.

Rapidly losing hair and wondering if it's such a good idea deviating from ASP!
By: PHP newbee Date: 13/05/2003 01:03:00 English  Type : Comment
I'm running PHP on Windows 2000....could that have anything to with it?
By: PHP newbee Date: 13/05/2003 01:14:00 English  Type : Comment
Aahhh, i've fixed it :)

As I'm running PHP on Windows 2000, I needed to change the session.save_path in the ini file to:

C:\WINNT\temp

Thanks for your input though.
By: VGR Date: 13/05/2003 01:15:00 English  Type : Comment
yes...
By: carchitect Date: 14/05/2003 05:33:00 English  Type : Comment
no don't delete
because VGR gave you hint for that


may-be I've an idea :

isn't the drive you installed the session data on (session.save_path) a FAT16 drive ?

you should award him points
By: PHP newbee Date: 14/05/2003 18:35:00 English  Type : Comment
The "hint" you gave didn't directly help me gain the solution. When you posted it, it gave me the impression that the problem could have been possibly due to having a FAT16 drive. I found the solution going through the php.ini file line by line and reading all the comments that explain what all the settings do. This lead me to the solution that if running on Windows, you have to change the save_session.path to use C:\WINNT\temp in my case.
By: VGR Date: 14/05/2003 18:45:00 English  Type : Comment
no

in fact, I expected you to have already put something for windows (default is for linux/*nix) in session.save_path

I didn't expect php.ini to be wrong on that point.

I suggested a mistake very annoying and already asked twice on EEE, and that I had too (the FAT16 story, related to the impossibility for PHP to get atime(), ctime() etc on session files)

It's true that my sugegstion lead you directly to the right php.ini variable, but for an other reason than the real one.

Do as you wish

"fais ce que vouldras" (Gargantua, François Rabelais)
<A HREF="http://www4.desales.edu/~salesian/rabelais.html">http://www4.desales.edu/~salesian/rabelais.html</a>
By: VGR Date: 14/05/2003 20:07:00 French  Type : Comment
Monseigneur est trop bon. Touchez ma bosse, Monseigneur...
By: PHP newbee Date: 15/05/2003 18:21:00 English  Type : Comment
Now that's not very nice.....insulting people is not very professional.
By: VGR Date: 15/05/2003 18:54:00 English  Type : Comment
you're not insulted.

Translated, it says "Sir is too god". Nothing less, nothing more.

It's a famous quote from a famous movie.
By: PHP newbee Date: 15/05/2003 18:57:00 English  Type : Comment
Maybe I translated the second bit wrong...

"Touchez ma bosse..." ??
By: VGR Date: 15/05/2003 19:40:00 English  Type : Comment
touch my boss (hump)

the person saying this is a "bossu" (hump-affected man) and touching the "hump" bears good luck. Thus , thanking his interlocutor ("you are too good"), he invites him to get good luck by touching his hump.

is that better ?
By: VGR Date: 15/05/2003 19:56:00 French English  Type : Comment
"Le Bossu" est avant tout un roman de Paul Féval (1857).

Mais il a été adpté au cinéma en 1913, puis 6 autres fois.

Les plus célèbres versions sont celles de 44 avec Pierre Blanchar, et de 59 d'André Hunebelle, avec Jean Marais.

Enfin en 67, une version télé avec Jean Piat eu un grand succès.

and actually someone is raising 143 million French Francs 21,79 million euros, roughly 19,12 million US dollars) to adapt it a 7th time for TV (Canam+ and TF1) ; Lagardère will be played by Daniel Auteuil.

<A HREF="http://www.ecrannoir.fr/films/97/lebossu/histoire.htm">http://www.ecrannoir.fr/films/97/lebossu/histoire.htm</a>

<A HREF="http://www.amazon.fr/exec/obidos/ASIN/B00007GZID/">http://www.amazon.fr/exec/obidos/ASIN/B00007GZID/</a>
By: PHP newbee Date: 15/05/2003 19:57:00 English  Type : Comment
lol....well that went straight over my head!
By: PHP newbee Date: 15/05/2003 20:02:00 French  Type : Comment
je parle un petit peu de francais et je trouve c'est assez difficult de comprends.

(I think)
By: VGR Date: 15/05/2003 20:13:00 English  Type : Comment
is "hump" the correct word ? And how is called the man having one ?
By: PHP newbee Date: 15/05/2003 20:17:00 English  Type : Comment
i don't know...i translated it as "Touch my lump / bump"!
By: VGR Date: 15/05/2003 20:33:00 English  Type : Comment
I don't even know what is a lump (I know "lung"), and I think the "bump" is the bottom, no ?
By: PHP newbee Date: 15/05/2003 20:36:00 English  Type : Comment
I think I'll quit here before my brain gives in!

Cheers

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