[PHP] Session variable not persisting
Hi all,
I'll be swift in my explanation as I can't find in any way the source of the
problem; it seems to be installation-related.
At execution, sometimes (randomly it seems at first), variable session aren't
properly stored.
=
First things first, about installation :
uname -a -m -p yields :
Linux cl-t180-253cl.privatedns.com 2.6.18-308.1.1.el5 #1 SMP Wed Mar 7 04:16:51
EST 2012 x86_64 x86_64 x86_64 GNU/Linux
php -v yields :
PHP 5.3.3 (cli) (built: Jun 27 2012 12:25:48)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
=
To make sure it is not caused by any other part of my scripts, I just created
two scripts that have replicated the problem :
SCRIPT #1 [ping.php]
?php
session_start();
if(count($_SESSION['in'])==0){
$_SESSION['in'][0]='0-initiate';
} else {
$_SESSION['in'][] = count($_SESSION['in']).$_GET['push'];
}
if(count($_SESSION['in'])1000){
$rand = rand(0, 100);
?
meta http-equiv=refresh content=0;URL='pong.php?push=?php echo
$rand; ?'
?php
} else {
var_dump($_SESSION);
}
?
SCRIPT #2 [pong.php]
?php
session_start();
if(count($_SESSION['in'])==0){
$_SESSION['in'][0]='0-initiate';
} else {
$_SESSION['in'][] = count($_SESSION['in']).$_GET['push'];
}
if(count($_SESSION['in'])1000){
$rand = rand(0, 100);
?
meta http-equiv=refresh content=0;URL='ping.php?push=?php echo
$rand; ?'
?php
} else {
var_dump($_SESSION);
}
?
##
In fact, when I run this on my server I randomly have empty entries in the
$_SESSION array. Any thoughts on this? Is this a known bug (haven't found it…)
Thanks!
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Re: [PHP] Session variable not persisting
On Mon, Mar 18, 2013 at 7:46 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: Hi all, I'll be swift in my explanation as I can't find in any way the source of the problem; it seems to be installation-related. At execution, sometimes (randomly it seems at first), variable session aren't properly stored. In fact, when I run this on my server I randomly have empty entries in the $_SESSION array. Any thoughts on this? Is this a known bug (haven't found it…) Thanks! What does phpinfo() show about session stuff? Especially things like save_handler and cookie_lifetime settings. Note that this seems to occur 3 times out of 1000 on average. Now, about your request : session Session Support enabled Registered save handlersfiles user Registered serializer handlers php php_binary wddx Directive Local Value Master Value session.auto_start Off Off session.bug_compat_42 Off Off session.bug_compat_warn Off Off session.cache_expire180 180 session.cache_limiter nocache nocache session.cookie_domain no valueno value session.cookie_httponly Off Off session.cookie_lifetime 0 0 session.cookie_path / / session.cookie_secure Off Off session.entropy_fileno valueno value session.entropy_length 0 0 session.gc_divisor 10001000 session.gc_maxlifetime 14401440 session.gc_probability 1 1 session.hash_bits_per_character 5 5 session.hash_function 0 0 session.namePHPSESSID PHPSESSID session.referer_check no valueno value session.save_handlerfiles files session.save_path /var/lib/php/session/var/lib/php/session session.serialize_handler php php session.use_cookies On On session.use_only_cookiesOn On session.use_trans_sid 0 0 __ Éric
Re: [PHP] Session variable not persisting
Le 2013-03-18 à 15:20, Matijn Woudt a écrit : On Mon, Mar 18, 2013 at 8:13 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: On Mon, Mar 18, 2013 at 7:46 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: Hi all, I'll be swift in my explanation as I can't find in any way the source of the problem; it seems to be installation-related. At execution, sometimes (randomly it seems at first), variable session aren't properly stored. In fact, when I run this on my server I randomly have empty entries in the $_SESSION array. Any thoughts on this? Is this a known bug (haven't found it…) Thanks! What does phpinfo() show about session stuff? Especially things like save_handler and cookie_lifetime settings. Note that this seems to occur 3 times out of 1000 on average. Now, about your request : session Session Support enabled Registered save handlers files user Registered serializer handlersphp php_binary wddx Directive Local Value Master Value session.auto_startOff Off session.bug_compat_42 Off Off session.bug_compat_warn Off Off session.cache_expire 180 180 session.cache_limiter nocache nocache session.cookie_domain no valueno value session.cookie_httponly Off Off session.cookie_lifetime 0 0 session.cookie_path / / session.cookie_secure Off Off session.entropy_file no valueno value session.entropy_length0 0 session.gc_divisor10001000 session.gc_maxlifetime14401440 session.gc_probability1 1 session.hash_bits_per_character 5 5 session.hash_function 0 0 session.name PHPSESSID PHPSESSID session.referer_check no valueno value session.save_handler files files session.save_path /var/lib/php/session/var/lib/php/session session.serialize_handler php php session.use_cookies On On session.use_only_cookies On On session.use_trans_sid 0 0 Your settings seem to be fine. My best guess would be hardware failure, though it seems unlikely. Did you check apache (or whatever webserver you're using) logs for any errors or warnings? Yes I did. Everyhting seems normal there too.
Re: [PHP] Session variable not persisting
Le 2013-03-18 à 15:24, Éric Oliver Paquette a écrit : Le 2013-03-18 à 15:20, Matijn Woudt a écrit : On Mon, Mar 18, 2013 at 8:13 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: On Mon, Mar 18, 2013 at 7:46 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: Hi all, I'll be swift in my explanation as I can't find in any way the source of the problem; it seems to be installation-related. At execution, sometimes (randomly it seems at first), variable session aren't properly stored. In fact, when I run this on my server I randomly have empty entries in the $_SESSION array. Any thoughts on this? Is this a known bug (haven't found it…) Thanks! What does phpinfo() show about session stuff? Especially things like save_handler and cookie_lifetime settings. Note that this seems to occur 3 times out of 1000 on average. Now, about your request : session Session Support enabled Registered save handlers files user Registered serializer handlers php php_binary wddx DirectiveLocal Value Master Value session.auto_start Off Off session.bug_compat_42Off Off session.bug_compat_warn Off Off session.cache_expire 180 180 session.cache_limiternocache nocache session.cookie_domainno valueno value session.cookie_httponly Off Off session.cookie_lifetime 0 0 session.cookie_path / / session.cookie_secureOff Off session.entropy_file no valueno value session.entropy_length 0 0 session.gc_divisor 10001000 session.gc_maxlifetime 14401440 session.gc_probability 1 1 session.hash_bits_per_character 5 5 session.hash_function0 0 session.name PHPSESSID PHPSESSID session.referer_checkno valueno value session.save_handler files files session.save_path/var/lib/php/session/var/lib/php/session session.serialize_handlerphp php session.use_cookies On On session.use_only_cookies On On session.use_trans_sid0 0 Your settings seem to be fine. My best guess would be hardware failure, though it seems unlikely. Did you check apache (or whatever webserver you're using) logs for any errors or warnings? Yes I did. Everyhting seems normal there too. Hm… Just noticed something new in fact; was looking a last time before considering reinstallation on a new server: it seems that the $_GET['push'] is undefined. In the other scripts I use where I have this problem, I'm using $_POST variables though but still don't get stored in $_SESSION. If I'm correct, this may implies that it is apache that is faulty right?
Re: [PHP] Session variable not persisting
Le 2013-03-18 à 15:37, Matijn Woudt a écrit : On Mon, Mar 18, 2013 at 8:35 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: Le 2013-03-18 à 15:24, Éric Oliver Paquette a écrit : Le 2013-03-18 à 15:20, Matijn Woudt a écrit : On Mon, Mar 18, 2013 at 8:13 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: On Mon, Mar 18, 2013 at 7:46 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: Hi all, I'll be swift in my explanation as I can't find in any way the source of the problem; it seems to be installation-related. At execution, sometimes (randomly it seems at first), variable session aren't properly stored. In fact, when I run this on my server I randomly have empty entries in the $_SESSION array. Any thoughts on this? Is this a known bug (haven't found it…) Thanks! What does phpinfo() show about session stuff? Especially things like save_handler and cookie_lifetime settings. Note that this seems to occur 3 times out of 1000 on average. Now, about your request : session Session Support enabled Registered save handlersfiles user Registered serializer handlers php php_binary wddx Directive Local Value Master Value session.auto_start Off Off session.bug_compat_42 Off Off session.bug_compat_warn Off Off session.cache_expire180 180 session.cache_limiter nocache nocache session.cookie_domain no valueno value session.cookie_httponly Off Off session.cookie_lifetime 0 0 session.cookie_path / / session.cookie_secure Off Off session.entropy_fileno valueno value session.entropy_length 0 0 session.gc_divisor 10001000 session.gc_maxlifetime 14401440 session.gc_probability 1 1 session.hash_bits_per_character 5 5 session.hash_function 0 0 session.namePHPSESSID PHPSESSID session.referer_check no valueno value session.save_handlerfiles files session.save_path /var/lib/php/session/var/lib/php/session session.serialize_handler php php session.use_cookies On On session.use_only_cookiesOn On session.use_trans_sid 0 0 Your settings seem to be fine. My best guess would be hardware failure, though it seems unlikely. Did you check apache (or whatever webserver you're using) logs for any errors or warnings? Yes I did. Everyhting seems normal there too. Hm… Just noticed something new in fact; was looking a last time before considering reinstallation on a new server: it seems that the $_GET['push'] is undefined. In the other scripts I use where I have this problem, I'm using $_POST variables though but still don't get stored in $_SESSION. If I'm correct, this may implies that it is apache that is faulty right? $_GET['push'] will be undefined if you still have your session stored, but accessing the script directly. It should have nothing to do with faulty Apache. Okay, let me paraphrase: when I run the ping pong scripts written up there, I have a blank in var_dump($_SESSION) if and only if I have [Mon Mar 18 13:25:37 2013] [error] [client 184.151.114.111] PHP Notice: Undefined index: push in /home/www/www.ngenioconnect.com/Modules/MPOSurveyTest/pong.php on line 8 on apache log. So my question really is, it is apache that handles the posts and gets requests, as I use both and it seems that the non-persistence of data occurs before the storage in $_SESSION, is it possible that it is Apache that is faulty?
Re: [PHP] Session variable not persisting
Le 2013-03-18 à 15:41, Éric Oliver Paquette a écrit : Le 2013-03-18 à 15:37, Matijn Woudt a écrit : On Mon, Mar 18, 2013 at 8:35 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: Le 2013-03-18 à 15:24, Éric Oliver Paquette a écrit : Le 2013-03-18 à 15:20, Matijn Woudt a écrit : On Mon, Mar 18, 2013 at 8:13 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: On Mon, Mar 18, 2013 at 7:46 PM, Éric Oliver Paquette eopaque...@gmail.com wrote: Hi all, I'll be swift in my explanation as I can't find in any way the source of the problem; it seems to be installation-related. At execution, sometimes (randomly it seems at first), variable session aren't properly stored. In fact, when I run this on my server I randomly have empty entries in the $_SESSION array. Any thoughts on this? Is this a known bug (haven't found it…) Thanks! What does phpinfo() show about session stuff? Especially things like save_handler and cookie_lifetime settings. Note that this seems to occur 3 times out of 1000 on average. Now, about your request : session Session Supportenabled Registered save handlers files user Registered serializer handlers php php_binary wddx Directive Local Value Master Value session.auto_start Off Off session.bug_compat_42 Off Off session.bug_compat_warnOff Off session.cache_expire 180 180 session.cache_limiter nocache nocache session.cookie_domain no valueno value session.cookie_httponlyOff Off session.cookie_lifetime0 0 session.cookie_path/ / session.cookie_secure Off Off session.entropy_file no valueno value session.entropy_length 0 0 session.gc_divisor 10001000 session.gc_maxlifetime 14401440 session.gc_probability 1 1 session.hash_bits_per_character5 5 session.hash_function 0 0 session.name PHPSESSID PHPSESSID session.referer_check no valueno value session.save_handler files files session.save_path /var/lib/php/session/var/lib/php/session session.serialize_handler php php session.use_cookiesOn On session.use_only_cookies On On session.use_trans_sid 0 0 Your settings seem to be fine. My best guess would be hardware failure, though it seems unlikely. Did you check apache (or whatever webserver you're using) logs for any errors or warnings? Yes I did. Everyhting seems normal there too. Hm… Just noticed something new in fact; was looking a last time before considering reinstallation on a new server: it seems that the $_GET['push'] is undefined. In the other scripts I use where I have this problem, I'm using $_POST variables though but still don't get stored in $_SESSION. If I'm correct, this may implies that it is apache that is faulty right? $_GET['push'] will be undefined if you still have your session stored, but accessing the script directly. It should have nothing to do with faulty Apache. Okay, let me paraphrase: when I run the ping pong scripts written up there, I have a blank in var_dump($_SESSION) if and only if I have [Mon Mar 18 13:25:37 2013] [error] [client 184.151.114.111] PHP Notice: Undefined index: push in /home/www/www.ngenioconnect.com/Modules/MPOSurveyTest/pong.php on line 8 on apache log. So my question really is, it is apache that handles the posts and gets requests, as I use both and it seems that the non-persistence of data occurs before the storage in $_SESSION, is it possible that it is Apache that is faulty? Er… I looked where it caused a problem, it seems that $_GET, $_POST and $_SESSION are indeed all affected. Any clue of a faulty installation that would cause problem for many surperglobals?
