Expiring session in a time limit

**arunkumar** · Jan 11, 2005 02:07

Sir,
This is my session coding.

I have set the expiring of session as 1 minute.
session_start();
echo $sessid;
echo "****************";
echo session_id();
echo " <html> \n";
echo "<head> \n";
echo "</head> \n";
echo "<body> \n";

$sessid = session_id();

session_cache_limiter('private');
$cache_limiter = session_cache_limiter();
session_cache_expire(1);
$cache_expire = session_cache_expire();
echo " <a href=\"http://linuxserver/admin/src/sess/aa.pph?sessid=".$sessid."\">Click</a> \n";
echo "</body> \n";
echo "</html> \n";
?>

But After 1 minute if i refresh the page the page is working fine.But fore me it
should not work it should say "The session expire".
How can i do it.
ArunKumar

**lilleman** · Jan 11, 2005 02:14

Hi,

Take a look at the directives session.gc_probability and session.gc_divisor in php.ini. Since you are probably viewing the page on your own development server (or on a low-activity server), the garbage collector may not be executed due to the settings in php.ini. For example, set session.gc_probability to one (1) and session.gc_divisor to two (2). Then there is a 50% chance that the garbage collector will run when a page is requested.

Yours, Erik.

**arunkumar** · Jan 11, 2005 02:24

sir,
I am having session.gc_probability as 1, and there is no session.gc_divisor .
What to do?
Arunkumar

**lilleman** · Jan 11, 2005 02:30

Hi,

Are you absolutely sure? If you can't find it anywhere in php.ini, add it:

Code:

session.gc_divisor = 2

Yours, Erik.

**arunkumar** · Jan 11, 2005 03:02

Sir,

I have run the program phpinfo the code was <?php phpinfo() ?> in that there was no session.gc_divisor.

You ask me to add session_gc.divisor how can i do it.Can you please guide me.
ArunKumar

**lilleman** · Jan 11, 2005 03:19

Hi,

I just assumed that you have access to php.ini, sorry for that. Try placing this at the top of your pages:

PHP Code:


ini_set('session.gc_probability', 1);

ini_set('session.gc_divisor', 2);

Yours, Erik.

**arunkumar** · Jan 11, 2005 03:43

Sir,
Is i have to pass the session id to all pages.

and when i add start_session() to top of my page the heade already send error is get by me.
What to do it sir,
Arun

**lilleman** · Jan 11, 2005 03:49

Hi,

You cannot have any output (spaces, HTML etc.) before calling session_start().

Yours, Erik.

**arunkumar** · Jan 11, 2005 03:51

Sir My code is here

session_start();
include "pathfile.php";
echo " <table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bordercolor=\"#FFFFFF\">\n";
echo " <tr class=\"topback\">\n";
echo " <td bgcolor=\"#FFFFFF\"><div align=\"left\"> \n";
echo " <img src=\"".$imgpath."logo.gif\" width=\"130\" height=\"52\">\n";
echo " </div></td>\n";
echo " </tr>\n";
echo " </table>\n";
echo " <table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" class=\"adminTopNav\">\n";
echo " <tr>\n ";
echo " <td ><div align=\"left\"> \n";
echo " <p>   Welcome ".$sname."</p>\n";
echo " </div></td>\n";
echo " <td width=\"59%\"><div align=\"right\"></div></td>\n";
echo " <td width=\"8%\"><div align=\"right\"><a href=\"".$pathconfig."index.htm\" style=\"text-decoration:none\">[Logout]   </a><a href=\"".$fileconfig."index.htm\" style=\"text-decoration:none\">[Help]   </a></div></td>\n";
echo " </tr>\n";
echo " </table>\n";

echo " <table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n";
echo " <tr>\n ";
echo " <td width=\"19%\" valign=\"top\" background=\"http://linuxserver/postr/admin/img/leftcornerback.gif\"><img src=\"http://linuxserver/postr/admin/img/leftcorner.gif\"></td>\n";
echo " <td width=\"62%\" valign=\"top\" background=\"http://linuxserver/postr/admin/img/leftcornerback.gif\"> </td>\n";
echo " <td height=\"64\" valign=\"top\" background=\"http://linuxserver/postr/admin/img/leftcornerback.gif\"> </td>\n";
echo " </tr>\n";
echo " </table>\n ";

Error shown is cannot send cookies header already send is comming.
ArunKumar

**lilleman** · Jan 11, 2005 03:57

Hi,

And you are sure that your starting tag (<?php) is at the beginning of the file (no spaces or so before it) ?

Yours, Erik.

**arunkumar** · Jan 11, 2005 04:07

Sorry eric,
As you said that i have echo before session startes,Ya i get sessid values in next page thanks for it.

Sir,I want to expires the page when the page is idle for 15 minute,I want to expire the session hope you get me,What should i do for it.
Thanks in Advance,
ArunKumar

**lilleman** · Jan 11, 2005 04:15

Hi,

Try placing this at the top of your script (before calling session_start).

PHP Code:


ini_set('session.cookie_lifetime', 1500);

Yours, Erik.

**arunkumar** · Jan 11, 2005 04:28

SIr,
i do it but not working my code is

/*************aa.php******************
<?
ini_set('session.cookie_lifetime', 15);
session_start();
echo $sessid;
echo "****************";
echo session_id();
echo " <html> \n";
echo "<head> \n";
echo "</head> \n";
echo "<body> \n";

$sessid = session_id();

/*session_cache_limiter('private');
$cache_limiter = session_cache_limiter();
session_cache_expire(1);
$cache_expire = session_cache_expire();*/
echo " <a href=\"ref.php?sessid=".$sessid."\">Click</a> \n";
echo "</body> \n";
echo "</html> \n";
?>
/******************ref.php*******************************/
<?
session_start();
echo " <html> \n";
echo "<head> \n";
echo "</head> \n";
echo "<body> \n";
$session = session_id();
echo $session;
echo " <a href=aa.php?sessid=".$sessid.">Click</a> \n";
echo "</body> \n";
echo "</html> \n";
?>
/**********************************************/

**arunkumar** · Jan 11, 2005 04:57

Here my pl ask me to session using data base.
Sir please give me some idea how to do it.
ArunKumar

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