AddBrainHandler x-httpd-php5 .php
On Tue, Jun 23, 2009 at 4:25 PM, Robert Cummings <robert@xxxxxxxxxxxxx>wrote:
> Ashley Sheridan wrote:
>
>> On Tue, 2009-06-23 at 15:07 -0400, Eddie Drapkin wrote:
>>
>>> 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
>>>>
>>>>
>>>> --
>>>> PHP General Mailing List (http://www.php.net/)
>>>> To unsubscribe, visit: http://www.php.net/unsub.php
>>>>
>>>>
>>>>
>> Yeah, hehe, I was trying to remember off the top of my head, and
>> obviously forgot! :p
>>
>> *slaps self*
>>
>
> Your brain is in PHP4 mode...
>
> *slaps Ashley*
>
> >:)
>
> Cheers,
> Rob.
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