Re: session_name("CCLTrolley")

Is that over kill? No matter how I slam it, still referring to my Frankensteinian merge, "unset" does the job. http://testesp.flsh.usherbrooke.ca/db/trolley.php But then again, I will not require a quanity of items. The visitor will only want one copy of a bibliographic entry :-\ - I hope?! You were checking to see if there was a greater than 1 quantity of post[RNum], right? Thanks, John //Delete an entry: if( isset( $_SESSION['TrolleyContents'][$_POST['RNum']] ) ) {

   #    $_SESSION['TrolleyContents'][$_POST['RNum']] -= 1;
   #    if( $_SESSION['TrolleyContents'][$_POST['RNum']] <= 0 )
   #    {
           unset( $_SESSION['TrolleyContents'][$_POST['RNum']] );
   #    }

} Robert Cummings wrote:

Thanks for your time and patience, John

The expression: $trolley[$item] -= $quantity; is a short form for the following: $trolley[$item] = $trolley[$item] - $quantity; Essentially we decrease the quantity of the given item by $quantity. if( $trolley[$item] < 1 ) { #Above we check if we subtracted more items than is physically possible unset( $trolley[$item] ); #If there are 0 or less items then there's no point having 0 of the item #in the trolley, so we unset the item from the array, which essentially #removes it completely. To view the difference at each step you can do #the following: <?php if( isset( $trolley[$item] ) ) { echo "Trolley before removing $quantity of $item<br />"; trolleyPrint(); $trolley[$item] -= $quantity; echo "Trolley after removing $quantity of $item<br />"; trolleyPrint(); if( $trolley[$item] < 1 ) {

       unset( $trolley[$item] );

       echo "Trolley after cleaning up empty entry for $item<br />";
       trolleyPrint();

} } ?> Cheers, Rob.

-- John Taylor-Johnston ----------------------------------------------------------------------------- "If it's not Open Source, it's Murphy's Law." ' ' ' Collège de Sherbrooke: ô¿ô http://www.collegesherbrooke.qc.ca/languesmodernes/ - 819-569-2064 °v° Bibliography of Comparative Studies in Canadian, Québec and Foreign Literatures /(_)\ Université de Sherbrooke ^ ^ http://compcanlit.ca/ T: 819.569.2064