* Robert Cummings <robert@xxxxxxxxxxxxx> : > On Fri, 2005-06-24 at 10:02, Jason Barnett wrote: > > Robert Cummings wrote: > > ... > > > There's a difference between a reference to a reference and a copy of a > > > reference *hehehe*. > > > > Now that makes sense. And am I correctly filling in the blanks when I > > guess that $foo3 = $aObj is merely copying the reference instead of > > referencing the reference? I probably could have written that more > > clearly, but I think you get what I'm saying. > > Yeah, *grin*. And on that note, there are times when you will actually > want $foo = &new SomeClass(); versus $foo = new SomeClass(); since > assigning by reference will break any previous references -- something I > forgot to mention to Matthew Weier when he challenged the relevance of > the snippet I sent. Funny... I just ran into that last night as I was writing some unit tests for an app that uses PEAR_ErrorStack! I was unsetting the object, but that only unset the reference to it -- and so the singleton reference that PEAR_ErrorStack created was still available when I instantiated a new object -- which meant previous errors were still present in the object. So, I stand corrected; I've seen it now! Good discussion! -- Matthew Weier O'Phinney | WEBSITES: Webmaster and IT Specialist | http://www.garden.org National Gardening Association | http://www.kidsgardening.com 802-863-5251 x156 | http://nationalgardenmonth.org mailto:matthew@xxxxxxxxxx | http://vermontbotanical.org -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
