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Date: Thu, 27 Jun 2013 17:54:04 +0300
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To: Ralf Lang <lang@b1-systems.de>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] New syntax for multidimensional array loop with foreach
From: g.b.yahav@gmail.com (Yahav Gindi Bar)

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On Thu, Jun 27, 2013 at 5:27 PM, Ralf Lang <lang@b1-systems.de> wrote:

> On 27.06.2013 16:10, Christian Stoller wrote:
> > Hi internals,
> >
> > during my current work I had an idea for shorter array iteration with
> foreach. I haven=92t seen such a syntax until now, but I think it is easy=
 to
> understand ;-)
> >
> > Maybe you know the case where you have to iterate over all values of a
> 2D (or more) array:
> >
> > $count =3D 0;
> > foreach ($array as $key =3D> $innerArray) {
> >     foreach ($innerArray as $innerKey =3D> $value) {
> >         $count +=3D $value;
> >         // and do something with $key and $innerKey
> >     }
> > }
> >
> > The new syntax could make it shorter and faster to write... but maybe
> it's a bit too confusing?
> >
> > $count =3D 0;
> > foreach ($array as $key =3D> $innerArray as $innerKey =3D> $value) {
> >     $count +=3D $value;
> >     // and do something with $key and $innerKey
> > }
> > What do you think?
>
> How would a break or continue on this behave? Would it end the inner or
> the outer circle?
>
> I guess that the usage of continue/break with specific number is the best
in this case...
foreach ($array as $key =3D> $innerArray
                            as $innerKey =3D> $value) {
      $count +=3D $value;
      if ($count % 2 =3D=3D 0) { // for instance...
              break 2; // End loop
     } else if ( $count % 3 =3D=3D 0 ) {
               break; // End inner loop
    } else if ( $count % 4 =3D=3D 0) {
              continue 2; // Continue outer loop
   }

   continue; // Continue inner loop
}

Personally, this syntax (the multi-dims loop) seems unreadable...


>
> --
> Ralf Lang
> Linux Consultant / Developer
> Tel.: +49-170-6381563
> Mail: lang@b1-systems.de
> B1 Systems GmbH
> Osterfeldstra=DFe 7 / 85088 Vohburg / http://www.b1-systems.de
> GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537
>
>

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