Re: [PHP] List of sessions
On Thu, May 4, 2006 10:56 pm, Tony Aldrich wrote: Honestly, the easiest way to solve this is to switch to 'user' PHP sessions: http://php.net/session-set-save-handler Thanks. I'm trying now to do this. I'm wondering about session-set-save-handler - what is manual garbage collector here? It means I must explicitly unset all variables or something else I must do? You'd want to delete any records from your database that are stale This is the important part of what you were asking about in the first place. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] List of sessions
Hi:
While we're on the subject of listing sessions, what does the
following code do?
session_start();
$path = ini_get('session.save_path');
$handle = dir($path);
while ($filename = $handle-read())
{
if (substr($filename, 0, 5) == 'sess_')
{
$data = file_get_contents($path/$filename);
if (!empty($data))
{
session_decode($data);
$session = $_SESSION;
$_SESSION = array();
echo(pre);
echo Session [ .
substr($filename, 5) . ]\n;
print_r($session);
echo \n--\n\n;
echo(/pre);
}
}
}
It looks dangerous.
tedd
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Re: [PHP] List of sessions
On 5/7/06, tedd [EMAIL PROTECTED] wrote:
Hi:
While we're on the subject of listing sessions, what does the
following code do?
session_start();
$path = ini_get('session.save_path');
$handle = dir($path);
while ($filename = $handle-read())
{
if (substr($filename, 0, 5) == 'sess_')
{
$data = file_get_contents($path/$filename);
if (!empty($data))
{
session_decode($data);
$session = $_SESSION;
$_SESSION = array();
echo(pre);
echo Session [ .
substr($filename, 5) . ]\n;
print_r($session);
echo \n--\n\n;
echo(/pre);
}
}
}
Goes through 'session.save_path' and looks for session files. If it
finds one, it opens it and prints it out.
Could be quit dangerous on a shared host, yes.
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Re: [PHP] List of sessions
On Sat, May 6, 2006 9:42 am, tedd wrote: While we're on the subject of listing sessions, what does the following code do? Looks like it snoops through all the sessions it can find. I suspect it will also NUKE the last session, where 'last' is whatever order readdir() feels like returning, which is not defined as any particular order... At least, I assume that after setting $_SESSION to array() that last time and ending, it's going to have nuked the last session... It might actually nuke them all for that matter... If session_decode() switches the ID around as well, then its gonna nuke them all, no? Maybe it's just a re-boot nuke all old sessions script... -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] List of sessions
If you store your sessions in a database then your could gain a little mode control over your session, but I think what you're asking is if there's a way to tell if a user has closed the browser thus killing the session on their side. If that's what you're asking then the answer is not going to lie strictly with PHP as the server has no way to ping a user's browser. A quick hack off the top of my head might be to find a creative way of using the onBeforePageUnload() (or w/e it is) javascript function along with frames. Anyway, you can check out php.net for more details on how to use a database for session storage: http://www.php.net/manual/en/function.session-set-save-handler.php Cheers, - Joe On 5/4/06, Tony Aldrich [EMAIL PROTECTED] wrote: Well, I mean visitors of site. They can open it in several windows or in several browsers. I understand that each browser on a machine will be a session (in simple explanation). And for all of them I create some info in database. Then they close browser. I must clean up unused info. That's why I want to query alive sessions. Or query their death time (timeout). I thought of something like $sess=get_session_list(); or $isalive=is_session_alive($session_id); Thanks. On 5/4/06, Gerry D [EMAIL PROTECTED] wrote: Can you have more than 1 session? On 5/2/06, Tony Aldrich [EMAIL PROTECTED] wrote: Good day, Does anybody know how to get a list of current sessions? I need to clear some database rows that where associated with some SID. Can it be done without probing of maxlifetime?
Re: [PHP] List of sessions
Thanks all for explanations. I'll try to use callback functions. Tony. On 5/4/06, Joe Wollard [EMAIL PROTECTED] wrote: If you store your sessions in a database then your could gain a little mode control over your session, but I think what you're asking is if there's a way to tell if a user has closed the browser thus killing the session on their side. If that's what you're asking then the answer is not going to lie strictly with PHP as the server has no way to ping a user's browser. A quick hack off the top of my head might be to find a creative way of using the onBeforePageUnload() (or w/e it is) javascript function along with frames. Anyway, you can check out php.net for more details on how to use a database for session storage: http://www.php.net/manual/en/function.session-set-save-handler.php Cheers, - Joe On 5/4/06, Tony Aldrich [EMAIL PROTECTED] wrote: Well, I mean visitors of site. They can open it in several windows or in several browsers. I understand that each browser on a machine will be a session (in simple explanation). And for all of them I create some info in database. Then they close browser. I must clean up unused info. That's why I want to query alive sessions. Or query their death time (timeout). I thought of something like $sess=get_session_list(); or $isalive=is_session_alive($session_id); Thanks. On 5/4/06, Gerry D [EMAIL PROTECTED] wrote: Can you have more than 1 session? On 5/2/06, Tony Aldrich [EMAIL PROTECTED] wrote: Good day, Does anybody know how to get a list of current sessions? I need to clear some database rows that where associated with some SID. Can it be done without probing of maxlifetime?
Re: [PHP] List of sessions
On Wed, May 3, 2006 11:29 pm, Tony Aldrich wrote: Well, I mean visitors of site. They can open it in several windows or in several browsers. I understand that each browser on a machine will be a session (in simple explanation). And for all of them I create some info in database. Then they close browser. I must clean up unused info. That's why I want to query alive sessions. Or query their death time (timeout). I thought of something like $sess=get_session_list(); or $isalive=is_session_alive($session_id); Honestly, the easiest way to solve this is to switch to 'user' PHP sessions: http://php.net/session-set-save-handler Once you do that, you're already nuking the actual session data for expired sessions in your database, and you can delete anything else in parallel. Your only other option would be to troll through /tmp looking for PHP session filenames that match the session ID or whatever, and then searching your database for IDs that aren't listed in there, and... You'd probably end up with a race condition sooner or later, and this would be dog-slow if you have lots of visitors, and you really don't want to do it this way. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] List of sessions
Honestly, the easiest way to solve this is to switch to 'user' PHP sessions: http://php.net/session-set-save-handler Thanks. I'm trying now to do this. I'm wondering about session-set-save-handler - what is manual garbage collector here? It means I must explicitly unset all variables or something else I must do? Once you do that, you're already nuking the actual session data for expired sessions in your database, and you can delete anything else in parallel. Your only other option would be to troll through /tmp looking for PHP session filenames that match the session ID or whatever, and then searching your database for IDs that aren't listed in there, and... Yes, I've tried this already - as a quick solve. I found out that session_save_path() returns null ander Windows (where I'm testing) and real folder on host side. And this means that I must use Windows temp folder and don't forget to filter files as 'sess_*'. Tony.
Re: [PHP] List of sessions
Well, I mean visitors of site. They can open it in several windows or in several browsers. I understand that each browser on a machine will be a session (in simple explanation). And for all of them I create some info in database. Then they close browser. I must clean up unused info. That's why I want to query alive sessions. Or query their death time (timeout). I thought of something like $sess=get_session_list(); or $isalive=is_session_alive($session_id); Thanks. On 5/4/06, Gerry D [EMAIL PROTECTED] wrote: Can you have more than 1 session? On 5/2/06, Tony Aldrich [EMAIL PROTECTED] wrote: Good day, Does anybody know how to get a list of current sessions? I need to clear some database rows that where associated with some SID. Can it be done without probing of maxlifetime?
[PHP] List of sessions
Good day, Does anybody know how to get a list of current sessions? I need to clear some database rows that where associated with some SID. Can it be done without probing of maxlifetime? Thanks in advance. Tony.
