Re: More than one values returned?
| From: | Nathan Nobbe | Date: | Wed, 20 Feb 2008 15:24:43 +0000 |
| Subject: | Re: More than one values returned? | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-269723@lists.php.net to get a copy of this message | ||
On Mon, Feb 18, 2008 at 9:06 PM, Nick Stinemates <nick@stinemates.org>
wrote:
> Thats a good example, and a good reason for passing values by Reference
> instead of by Value.
>
> I have found, however, that if I ever need to return /multiple/ values,
> it's usually because of bad design and/or the lack of proper
> encapsulation.
and this is what i was responding to earlier, nick, although you didnt
criticize
pass-by-reference directly you essentially said use of it indicates bad
design,
which i disagree with.
check my post where i show a method with a boolean return value that has a
pass-by-reference parameter to return data; that is a perfectly reasonable
use
case for pass-by-reference and it does not indicate bad design. nor would
it, if
there were more pass-by-reference parameters in that method.
and here is another reason you might have to return more than on value from
a
method; a function needs to return data of different types. now php is
loosely
typed, so packaging these into an array is a joke, but in other languages,
that
are strongly typed, its not quite that simple. any way, when i think about
a method
returning a class, what if for whatever reason, a method were to return
objects of
2 classes ? do you then create another class just for the purpose of
packaging those
2 objects for this method to return a single value?
well ill let you be the judge of that, but i would probly toss them in a
small array, or,
depending on the scenario, use pass-by-reference, especially if i wanted to
return
a boolean value from the method ;)
-nathan