It's just foreach($foo as $key => &$item) { }
You can't assign the key by reference >.>
On Tue, Jun 23, 2009 at 3:04 PM, Ashley
Sheridan<ash@xxxxxxxxxxxxxxxxxxxx> wrote:
> 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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