On Tue, 2009-06-23 at 12:56 -0600, Kirk.Johnson@xxxxxxxxxxx wrote:
> Andres Gonzalez <andres@xxxxxxxxxxxxxxx> wrote on 06/23/2009 12:26:38 PM:
>
> > 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?
>
> foreach works on a copy of an array, so the behavior you saw is expected.
> See the online manual.
>
> You could use a while loop, or, instead of unset-ing elements of $results,
> store the elements you want to keep into a new array.
>
> Kirk
What about passing it by reference?
foreach($results as &$key => &$item)
{
// modify items here
}
Thanks
Ash
www.ashleysheridan.co.uk
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