Re: Problem with complex data structure and sessions

Probably the best thing to do is visit http://bugs.php.net and review the guidelines for submitting a bug. If you get through the process and feel that you have found a bug, please submit a bug report. --zak On December 10, 2001 02:51 pm, Frank wrote: > I am new to online PHP communities so if there is a better place to > post this please let me know. > > I may have encountered a bug in PHP 4.0.6, but I don't know where to > look to see if it is a known problem, and I have not been able to > reproduce the problem in trivial code. > > I have been programming for a couple decades now, but just started > with PHP a few months ago. I've spent a couple months developing a > fairly typical catalog / shopping cart / order system for a small web > site. My code works flawlessly on 4.0.8 under Windows XP (my > development environment), but when I uploaded it to our host (4.0.6 > under FreeBSD) it failed in the following way: > > The Shopping cart (we call it a basket) object includes a two > dimensional array of "item" objects indexed by catalog number and > package size, and a second array of references to the same item > objects. Simplified a little, items are added like this: > > $this->items[$catalognum][$size] = new BasketItem($catalognum, $size, > $quantity); > $this->ref[] = &$this->items[$catalognum][$size]; > > Somewhere in the serialize/store/load/unserialize process handled by > the built in session support, $basket->ref[] comes to contain > references to arrays rather than references to objects. If I add an > "echo $basket->ref[0]" line to a particular page it will print > "Object" on the hit that creates the basket, and "Array" when I > refresh the page. Under 4.0.8/Windows it will print "Object" each > time. > > This problem causes my code to fail with a "Call to a member function > on a non-object" error. > > Where can I best look to see if this is a known problem?