[nycphp-talk] style question: returning from a function while you're in a foreach
Joseph Crawford
codebowl at gmail.com
Fri Mar 15 22:35:30 EDT 2013
I personally would disagree with you on that one. I think the single
return point is more confusing. Though that is more of a preference.
The single return path leads to extra processing that would not be required.
On Mar 15, 2013 9:12 PM, "Robert Stoll" <rstoll at tutteli.ch> wrote:
> I would say the first version is ok but only because your function is
> small enough.****
>
> If your function gets bigger and bigger, then it is better to have only
> one exit point in terms of readability.****
>
> ** **
>
> *Von:* talk-bounces at lists.nyphp.org [mailto:talk-bounces at lists.nyphp.org]
> *Im Auftrag von *Joseph Crawford
> *Gesendet:* Freitag, 15. März 2013 22:15
> *An:* NYPHP Talk
> *Betreff:* Re: [nycphp-talk] style question: returning from a function
> while you're in a foreach****
>
> ** **
>
> The only reason would be poorly designed code where the return value could
> change based on multiple separate conditionals. I have seen it in some
> legacy code.****
>
> On Mar 15, 2013 5:50 PM, "Anthony Ferrara" <ircmaxell at gmail.com> wrote:
> >
> > The first is fine. There's no reason not to do it...
> >
> >
> > On Fri, Mar 15, 2013 at 5:30 PM, Joseph Crawford <codebowl at gmail.com>
> wrote:
> >>
> >> There are a few things to learn from here.
> >>
> >> First it is not only a styling thing. In the first one you have
> several return
> >> statements and in the second you only have 1 return statement.
> >>
> >> It will depend on the code logic but I tend to return when I have the
> value I need rather
> >> than assign it to a variable and have it continue to process through
> the rest of the function.
> >>
> >> If you only return after the entire function is complete but your known
> case was the first check in
> >> the function you are "over" processing and will only add time to your
> sites load time.
> >>
> >> Thanks,
> >> Joseph Crawford
> >>
> >> On Mar 15, 2013, at 5:08 PM, David Mintz wrote:
> >>
> >>> function whatever(Array $array) {
> >>>
> >>> foreach ($array as $key => $value) {
> >>> if ($something) {
> >>> return true;
> >>> }
> >>> }
> >>> return false;
> >>> }
> >>>
> >>> Is there any reason -- style, legibility, whatever -- not to do the
> above? Or should you do something like
> >>>
> >>> function whatever(Array $array) {
> >>>
> >>> $return = false;
> >>> foreach ($array as $key => $value) {
> >>> if ($something) {
> >>> $return = true;
> >>> break;
> >>> }
> >>> }
> >>> return $return;
> >>> }
> >>>
> >>> Thanks.
> >>>
> >>>
> >>> --
> >>> David Mintz
> >>> http://davidmintz.org/
> >>> Fight for social equality:
> >>> http://socialequality.com/
> >>>
> >>> _______________________________________________
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> >>>
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> >>
> >>
> >>
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