Re: Are PHP5 features worth it?

Roman Neuhauser wrote: > # zorglub_olsen@hotmail.com / 2006-12-19 19:05:23 +0100: ... ... >> What major compelling reasons do I have to start using exceptions and OOP-5? > > All the things you mentioned, and then some. > > Someone else mentioned that PHP 5 is much less inclined to copy objects. it's not inclined to copy at all - you always get a reference to the existing object. > You still don't get the convenience of a private copy constructor, but > hey. maybe I misunderstand you but isn't this what you mean by 'private copy ctor'?: http://php.net/manual/en/language.oop5.cloning.php > > Another thing is destructors, so you're able to mimic C++'s powerful > > // unlocked > { > mylock_t lock; > // locked > } > // unlocked > > (not so powerful in PHP without anonymous scopes). > > For example, a unit-testing library for PHP 5 called Testilence provides two > utility classes, a temporary dir and a temporary file (see mkdtemp(3), > mkstemp(3)). Both classes remove the underlying filesystem objects in their > destructors, so you can conveniently skip doing the cleanup yourself: > > function test_O_EXCL_ThrowsOnExistingPath() > { > $file = $this->mkstemp(); > $this->willThrow('RuntimeException'); > new SplFileObject($file->path(), 'x+'); > } > > Also, notice how the code can omit checking for errors in mkstemp(). > The return value is guarranteed to be the right thing, since any errors would > be signalled by throwing an exception, and that is handled By the caller of > this method. > > How about iterators? You can have objects that look like arrays yet they take > much less memory: > > $rs = $db->query($select); # query the db > foreach ($rs as $row) { # fetch the row > whatever($row); > } ah yes - good catch, I do like iterators for keeping code nice and tight. >