foreach ($results as $key => $item)
{
if ($item == 'foo') unset($results[$key]);
}
> -----Original Message-----
> From: Andres Gonzalez [mailto:andres@xxxxxxxxxxxxxxx]
> Sent: Tuesday, June 23, 2009 11:27 AM
> To: php-general@xxxxxxxxxxxxx
> Subject: modifying within foreach
>
> In the following example:
>
> foreach ($results as $key => $item) {
>
> //bla bla bla -- unset some of the $items
>
> }
>
> I want to modify $results within the foreach. In other words,
> during a given pass of this iteration, I want to delete some
> of the items based on particular conditions. Then on the next
> pass thru the foreach, I want $results to be the newer, modified
> array.
>
> This does not seem to work. It appears that the foreach statement
> is implemented such that $results is read into memory at the start
> so that any modifications I make to it during a given pass,
> are ignored
> on the next pass. Is this true?
>
> If so, is there a way that I can tell the foreach statement
> to re-read the
> array $results? Or am I just going against the grain here?
>
> -Andres
>
>
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