Question

Session Vars not working after server migration

Asked by: feign3

I just moved my site to a Linux VPS and am having an issue with Session variables. Session vars are not getting passed from page to page. I used the following simple test to check the setup:

FIRST PAGE:

<?php session_start();
$_SESSION['userid'] = "foo";
print "Session id is: " . session_id() . $_SESSION['userid'];
print "<a href=secondpage.php'> go to next page </a>";
?>


SECOND PAGE:

<?php session_start();
print "Welcome" . $_SESSION['userid'] . "<br />";
print "You have got to page 2 with these information stored in the session: " . $_SESSION['userid'] . " and your session is still: " ;
echo session_id();
?>

When testing this, I get a different Session ID on the second page and no 'userid' printed.
I have made several changes to my php.ini file including:

1. enabled register_globals
2. set session.save_path and confirmed the path exists and is writable

Here is my php.ini Session info:

Session Support  enabled  
Registered save handlers  files user mm  

Directive Local Value Master Value
session.auto_start Off Off
session.bug_compat_42 On On
session.bug_compat_warn On On
session.cache_expire 180 180
session.cache_limiter nocache nocache
session.cookie_domain no value no value
session.cookie_lifetime 0 0
session.cookie_path / /
session.cookie_secure Off Off
session.entropy_file no value no value
session.entropy_length 0 0
session.gc_divisor 100 100
session.gc_maxlifetime 1440 1440
session.gc_probability 1 1
session.name PHPSESSID PHPSESSID
session.referer_check no value no value
session.save_handler files files
session.save_path /home/mydomain/tmp/session_files /home/mydomain/tmp/session_files
session.serialize_handler php php
session.use_cookies On On
session.use_only_cookies Off Off
session.use_trans_sid Off Off

I'm not sure what else I could be missing.



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Asked On
2007-03-03 at 13:29:53ID22426224
Tags

working

,

php

,

print

,

session_set_cookie_params

Topics

PHP Scripting Language

,

PHP and Databases

,

Apache Web Server

Participating Experts
2
Points
125
Comments
6

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Answers

 

by: TrakosPosted on 2007-03-03 at 13:42:05ID: 18648330

Have you checked whether session files are saved (and have proper chmods) in session.save_path ? (in your cfg it is /home/mydomain/tmp/session_files )

 

by: feign3Posted on 2007-03-03 at 14:37:18ID: 18648471

Yes, session files are being created properly. I was able to open and read both of them (one was created for each page).  I replaced my actual domain name in the text above with mydomain for privacy.

 

by: feign3Posted on 2007-03-03 at 14:57:55ID: 18648527

Found the problem.

My link to the second page was going to http://domainname.com/secondpage.php while the originating page had the www prefix to the domain. The cookie domains did not match - thus the problem.

 

by: rhickmottPosted on 2007-03-06 at 02:18:49ID: 18660491

Was about to say this is most likley a cookie problem :)

You should be able to modify the config to allow PHP to issue a wildcard cookie so the cookie will propergate between *.domain.com

edit the session.cookie_domain in php.ini from the default of “” to “.domain.com”

If you have more than one domain you should be able to get away with using

session_set_cookie_params()

to specify the domain explicitly.

20120131-EE-VQP-002

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