#22671 [Opn->Ana]: IMG SRC not able to get SESSION values

[rasmus]

 ID:               22671
 Updated by:       [EMAIL PROTECTED]
 Reported By:      ronneil at restricted dot dyndns dot org
-Status:           Open
+Status:           Analyzed
 Bug Type:         Session related
 Operating System: FreeBSD 4.7 and Redhat 7.3
 PHP Version:      4.3.0
 New Comment:

You explicitly destroy the session right there at the bottom of
test1.php.  Why do you think that the session will still be around by
the time the request for the test2 image comes through?  Chances are
that test1 has finished executing by then and thus you session data has
been destroyed.


Previous Comments:
------------------------------------------------------------------------

[2003-03-13 01:31:31] ronneil at restricted dot dyndns dot org

I am trying to retrieve values from a SESSION variable array. To
retrieve, I am using <img src=somefile.php>. Unfortunately, I am not
able to see any value. Below are 2 sample php files to recreate the
error. "test1.php" calls "test2.php" via <img src> TAG.

Currently in production, I have a working code
(http://restricted.dyndns.org/codes/ocishow1.php) that uses almost same
concept below but this one saves the data to a file first. This code
calls another php file
(http://restricted.dyndns.org/codes/ocishow2.php) to generate the graph
and is called via <img src>.

--------------TEST CODE-------------------
FILENAME : test1.php
<?php
   session_start();
   $time_VAR = array(2343,3234,457,2356,6798,3467,34667,4578,2523);

   for ($ipage=0;$ipage<4;$ipage++) {
       for ($i=0;$i<count($time_VAR);$i++) {
           $_SESSION[$ipage][] = $time_VAR[$i];
       }

    // the following loop verifies if SESSION variable was populated
       for ($i=0;$i<count($_SESSION[$ipage]);$i++) {
           echo "$i.) ".$_SESSION[$ipage][$i]."<br>";
       }
       $pagenum = $ipage;
       $arraysize = count($_SESSION[$ipage]);
       echo "Pagenum : $pagenum, Size of current array :
$arraysize<br>";
       echo '<img
src="test2.php?count='.$pagenum.'&varsize='.$arraysize.'">';
       echo "New line<br><br>";
   }
   session_destroy();
?>
-------------------------------------------------
FILENAME : test2.php
<?php
    session_start();
    $index = $_GET[count];
    $arraysize = $_GET[varsize];

    // file handling was written to verify the size of array and index
if there are really values on it
    $fp1 = fopen("/tmp/checkval.txt","w");
    $err = fwrite($fp1,"Pagenum : $index, Size of Array:
$arraysize\n");
    fclose($fp1);
    
    for ($i=0;$i<$arraysize;$i++) {
        $atemp_alltel_VAR[] = $_SESSION[$index][$i];
    }
    // This is the only way I can verify 
    $fp = fopen("/tmp/testing","w");
    for ($i=0;$i<count($atemp_alltel_VAR);$i++) {
        $err = fwrite($fp, $atemp_alltel_VAR[$i]);
    }
    fclose($fp);
?>


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


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Edit this bug report at http://bugs.php.net/?id=22671&edit=1