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MyASPN >> Mail Archive >> php-general
php-general
Re: [PHP] foreach / unset
by Jochem Maas other posts by this author
Oct 28 2005 2:16AM messages near this date
Re: [PHP] foreach / unset | Re: [PHP] foreach / unset
Richard Lynch wrote:
>  Somewhere in the manual (damned if I can find it now) it says (or used
>  to say) that you can or can't safely do this:
>  
>  while (list($k, $v) = each($array)){
>    if (...) unset($array[$k]);
>  }
>  
>  I don't even remember if it's safe or not, but I swear I saw it not
>  that long ago...
>  
>  Anyway, can you do *this* safely as a DOCUMENTED FEATURE:
>  
>  foreach($array as $k => $v){
>    if (...) unset($array[$k]);
>  }

in short: yes.

you can unset() in this way till the cows come home and
not suffer undue consequences.

>  
>  I'm sure I could test it and maybe find out if "it works" but is it
>  documented behaviour I can rely on?  I'm sure not finding this in the
>  manual now that I go looking for it, though I know I saw it there
>  before.
>  
>  PS
>  I'm being dragged kicking and screaming into using this new-fangled
>  'foreach' thing instead of while/list/each, and I don't really care
>  for it so far. :-)

if while/list/each & foreach were women, while/list/each would be selling
fish on a market stall & foreach would be having her feet massaged while drinking
dry martini at 35,000 feet :-)

but I guess it's not the done thing to call a language construct sexy ;-)

>  


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Thread:
Richard Lynch
Bogdan Ribic
John Nichel
Jochem Maas
Richard Lynch
Brent Baisley
Jochem Maas
Niels Ganser
Karlos Zafra

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