Tickets :: Comment on [#5355] Fix for PHP4 reference handling

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Comment	> Hello Chuck, > > > >> I know you probably have, but did you test the Share change? There > >> have been problems in the past with assigning a reference to a static > >> variable in PHP 4. It may work if the static variable is an array, > >> instead of overwriting the static directly. But if you have: > >> > >> static $foo; > >> ... > >> $foo = &new Bar(); > >> > >> Then the reference won't take. > > > > Wow, I just modified my example code and it broke. Thanks for > pointing this out. The Horde_Share::singleton() code uses an array > $shares, so it should be ok. Works so far without problems here. I've > changed this as the new kolab share handler uses internal references > between parent and child objects. > > > >> Also, this should only matter if, in the constructor, the class > >> creates a child object that needs to be assigned by reference. So I > >> think a lot of the places you added it in Kronolith are unnecessary. > >> Can you add new patches that only add the & where it fixes a problem > >> we're seeing? > > > > Well, the new kronolith kolab driver uses an internal wrapper to > switch between the old and the new backend. This wrapper has a > back-reference to the Kronolith_Driver object, which breaks without > the change. The problem is you think its working, but you almost > won't notice it and then strange bugs occur when a variable inside > the real driver object changed and you still have an old copy of that > object floating around. > > > > If you want to you can skip the "FBview.php" and "Kronolith.php" part > of the patch > > as it was only changed to make the fix complete. I've just checked > all static variables in Kronolith, looks good to me. > > > > I'm still wondering a bit about Kronolith_Driver::factory(). The > comment states it should return a concrete instance of a driver, but > as far as I can see it always creates a new instance. Also take a > look at lib/Scheduler/kronolith.php. It creates a global driver > object and then creates another two. Is that supposed to happen? > > > > Cheers, > > Thomas > >
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