Re: __toString(), __toArray()

don't worry it's only for people who are working with MVC and RootObject structure, there is too much magics already and __cast is not needed at all, as we cannot monkey patch to add an observer on itself, a nice solution should have a catchable object so __catch any calls function __catch($data, $type) { if (method == $type) { if (data[selector] = 'setValue' && observedValueForKeyPath) { $this->_setValue(($data['arg']); return; } } continue_natural_call(); } we could imagine to have a root-object-built-in-class that is naturally observable, or a root classObject at all, anyway it's only something for people who are doing OO programming, so don't worry On Tue, Jan 12, 2010 at 2:40 PM, Chris Stockton <chrisstocktonaz@gmail.com> wrote: > Hello, > > On Mon, Jan 11, 2010 at 8:32 PM, mm w <0xcafefeed@gmail.com> wrote: >> cast is not needed in PHP >> >> i 'd rather be more interesting in >> >> class Obj { >>     function __catch($data, $type) { >>            //$type [ static_method, method, get_property, set_property] >>            if (observed &&  $type == set_property && >> somevalueIsObserved) { >>                  $observer->notify("somevalue::valueWillChanged"); >>                  $this->somevalue = $data['somevalue']; >>                  $observer->notify("somevalue::valueDidChanged"); >>            } else { >>                  continue__call(); >>            } >>     } >> } > > What? ... > >>> Etienne Kneuss wrote: >>> This is where operator over-loading would be useful however perhaps only >>> explicit casts would make sense here. > > I beleive adding a __cast(string $type) would be a useful feature for > me, very often I have a toArray method defined. I agree with you that > due to unexpected edge cases with operator precedence and general type > juggling that __cast should only be called on explicit (cast). > > I.E.: > class Int { public function __cast($type) { return 'int' == $type ? 15 : 0; } } > $r = new Int; > > var_dump($r + 1); // 2 > var_dump((int) $r + 1); // 16 > var_dump((bool) $r + 1); // 1 >