RE: [PHP] Session Array Disappears

You're missing the session_start() call at the beginning of your code. I'm surprised it works at all without that.. http://www.php.net/manual/en/ref.session.php http://www.php.net/manual/en/function.session-start.php Brady > -----Original Message----- > From: Webmaster [mailto:webmaster@gypsydev.us] > Sent: Monday, April 24, 2006 1:49 PM > To: php-general@lists.php.net > Subject: [PHP] Session Array Disappears > > Hello, > > The site I'm working on works like this... > Requires a login that uses sessions to remember username and email > address. Upon being verified, the user is presented with a page that > displays several questions regarding their background. Upon > submitting > the background page, a script checks to make sure all background > questions were answered. If not, the page is redisplayed > with a warning > to answer all questions. If they are all present, a second page is > displayed asking about a specific topic. Submitting the second page > calls up the code provided below. > > In reading the www.php.net/manual/en/ref.session.php page, > I'd like to > point out we do not use cookies. The session id is propagated in the > URL (although it's not visible in the URL bar). Also, > session.gc_maxlifetime is set to 5400. We are using PHP 4.3.4. > > Not very often, but once in a while, I'll get an email > warning me that a > submission was denied because $_SESSION['Q'] is empty. I'm > wondering, > hoping and/or praying that someone out there can look at this small > script and let me know if I'm doing something wrong with the built in > function array_pop, perhaps I don't understand sessions at all or > perhaps it is a server issue. It's very confusing because > other session > variables (name and email from the login page) are not emptied, just > $_SESSION['Q']. > > Here's my code with some documentation: > <?php > /* > $_SESSION['startQA'] contains 11 elements and is generated by > a previous > page in the site. > Once the visitor clicks the page two submit button, the above SESSION > variable comes into play again. > > This script takes that array of elements and does the following: > 1. Assign session array to local array > 2. Removes the last elemental value using array_pop > 3. Removes the last elemental value using array_pop > 4. Assign local variable the value of the a POST element > 4a. Create a new session array and populates the first > element equal to > POST element > 5. Runs through and populates the remaining 9 elements > 5a. Total of 10 elements are now populated, 0 thru 9 > 6. Double checks the existence of each element > 6a. if an element is missing, email me a warning and end program > */ > > //Assign Session array to local variable > // Step 1 > $thisQarray = $_SESSION['startQA']; > > //Remove the last element of the original array > // Step 2 > $area = array_pop($thisQarray); > > //Remove last element of bgq array and assign to taking_test_at > // Step 3 > $from_location = array_pop($thisQarray); > > //Assign test version to variable > // Step 4 > $testVersion = $_POST['version']; > > //Start building the final Session Array > // Step 4a > $_SESSION['Q'] = array($testVersion); > > //Populate rest of Session Array > // Step 5 > for ($newBGQCounter=0; $newBGQCounter<count($thisQarray); > $newBGQCounter++) > { > $_SESSION['Q'][$newBGQCounter+1] = $thisQarray[$newBGQCounter]; > } > > //test for existense of session array elements > if ( ($_SESSION['Q'][0] == "") OR ($_SESSION['Q'][1] == > "") OR > ($_SESSION['Q'][2] == "") OR ($_SESSION['Q'][3] == "") > OR > ($_SESSION['Q'][4] == "") OR ($_SESSION['Q'][5] == "") > OR > ($_SESSION['Q'][6] == "") OR ($_SESSION['Q'][7] == "") > OR > ($_SESSION['Q'][8] == "") OR ($_SESSION['Q'][9] == "") > ) > { > SEND ME AN ERROR EMAIL > END PROGRAM > } > ?> > > Thank you all very much, > R > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >