Unable to pass $_SESSION variables between pages

[Krash]

 

Can't get this to work.  Here's the typical sample code -

 

 

page1.php:

 

<?php

session_start();

$_SESSION['filename']='file.txt';

echo "page 1<br>filename = " . $_SESSION['filename'];

echo "<br><a href='page2.php'>page 2</a>";

?>

 

page2.php:

 

<?php

session_start();

echo "page 2<br>filename = " . $_SESSION['filename'];

echo "<br><a href='page1.php'>page 1</a>";

?>

 

$_SESSION['filename'] echos in page 1, but is blank in page 2.

 

 

 

[PFMaBiSmAd]

For debugging purposes, add the following three lines of code starting on the line immediately after your <?php tag in both files -

 

ini_set("display_startup_errors", "1");
ini_set("display_errors", "1");
error_reporting(E_ALL);

 

You should actually have the error_reporting/display_errors settings already set to those values on your development system so that php will help you when developing and debugging php code.

[Krash]

 

Here's what I get back -

 

 

Warning: session_start() [function.session-start]: open(/var/php_sessions/sess_a5afedd57f71750eef45b2d5cc870fe4, O_RDWR) failed: No such file or directory (2) in /xxxxxx/xxxxx/xxxxx/xxxxxxxxxxxxx/xxxxxxx/page1.php on line 6

 

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /xxxxxx/xxxxx/xxxxx/xxxxxxxxxxxxx/xxxxxxx/page1.php:6) in /xxxxxx/xxxxx/xxxxx/xxxxxxxxxxxxx/xxxxxxx/page1.php on line 6

 

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /xxxxxx/xxxxx/xxxxx/xxxxxxxxxxxxx/xxxxxxx/page1.php:6) in /xxxxxx/xxxxx/xxxxx/xxxxxxxxxxxxx/xxxxxxx/page1.php on line 6

page 1

filename = file.txt

page 2 //

Warning: Unknown(): open(/var/php_sessions/sess_a5afedd57f71750eef45b2d5cc870fe4, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

 

Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/php_sessions) in Unknown on line 0

 

 

Is that a server problem?

 

 

[BizLab]

it means you have the wrong file path for your session folder.

 

Echo this

echo session_save_path();

 

That will give you the actual save path for your session folder.

 

You can also find this info in your php_info() page - - seen when you place

php_info();

 

This will show you all your current server settings.  Also, you should check to be sure the start_session() function is run before ANYTHING else on the page. That may be why you are getting the header sent error... although, i have gotten that error when certain php functions (notably the unlink() function) are trying to send back errors which is why we use the error suppression (@) method.. but this is not likely your issue with the session.

 

If you are in Linux and have access to the file permissions, you may want to open them up a bit more to a chmod 775 or something of the sort.

[Krash]

There's nothing in the test files other than what I posted above, so nothing is being sent that should cause a header editor.  I have the session_save_path - what do I do with it?

 

[BizLab]

Compare it to the open dir path in your error logs. you will have to debug from there. Your open file path needs to match the session save path