ID: 11560
User Update by: [EMAIL PROTECTED]
Old-Status: Open
Status: Closed
Bug Type: *Session related
Operating system: Red Hat 7.0
PHP Version: 4.0.5
Description: to many sessions are generated when using set_session_save_handler with 
mysql

I found what the problem was. When there is a broken image on the page, the 404-page 
was loaded. On that page sessions were loaded again, causing the error.

Previous Comments:
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[2001-06-20 10:00:45] [EMAIL PROTECTED]
Using a session_handler like this one:
http://gateway.digitaria.com/~chris/php/mysql_session_handler/mysql_session_handler.phps


Using a mySQL-database.

Have the following configure './configure' '--with-mysql' 
'--with-apache=../apache_1.3.20'
'--enable-track-vars' '--enable-trans-sid' '--enable-ftp' '-disable-debug'

The problem: I have noticed that if you use set_session_save_handler with mysql and 
you
don’t accept cookies and there is a broken image on the page, PHP generates to many 
sessions:
This is an example code that generates this error (named test.php3):

<?php
 mysql_connect ("localhost", "user", "pass");
  include("the session file like the one linked above");
  session_start();
?>
  <img src="fdsafdsaf.jpg">
<?php
   // count the number of sessions stored in the database
    $numsessions = mysql_num_rows(mysql_query("select * from sessions"));
    echo $ numsessions;
?>
<br>
<a href="test.php3">test</a>


Notice how the number of sessions are added, but you still have your same session id. 
What
happens is that PHP generates a number of session ids, that are never used. This 
problem
doesn’t occur if you have cookies enabled, or don’t uses set_session_save_handler.

I have also noticed that the image doesn't need to be broken, It can also be a gif and 
only contain a transparent colour. This generates the same error.

---------------------------------------------------------------------------

[2001-06-19 11:01:09] [EMAIL PROTECTED]
Using a session_handler like this one: 
http://gateway.digitaria.com/~chris/php/mysql_session_handler/mysql_session_handler.phps


Using a mySQL-database.

Have the following configure './configure' '--with-mysql' 
'--with-apache=../apache_1.3.20' '--enable-track-vars' '--enable-trans-sid' 
'--enable-ftp' '-disable-debug'

The problem: I have noticed that if you use set_session_save_handler with mysql and 
you don’t accept cookies and there is a broken image on the page, PHP generates to 
many sessions:
This is an example code that generates this error (named test.php3):

<?php
 mysql_connect ("localhost", "user", "pass");
  include("the session file like the one linked above");
  session_start();
?>
  <img src="fdsafdsaf.jpg">
<?php
   // count the number of sessions stored in the database
    $numsessions = mysql_num_rows(mysql_query("select * from sessions"));
    echo $ numsessions;
?>
<br>
<a href="test.php3">test</a>


Notice how the number of sessions are added, but you still have your same session id. 
What happens is that PHP generates a number of session ids, that are never used. This 
problem doesn’t occur if you have cookies enabled, or don’t uses 
set_session_save_handler.


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Full Bug description available at: http://bugs.php.net/?id=11560


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