Re: problem with passing-by-reference

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On 14 May 2010 10:09, Rene Veerman <rene7705@xxxxxxxxx> wrote:
> Hi.
>
> I'm doing the 5.3-strict thing, and am removing all my
> passing-by-reference muck from a script of mine.
>
> But i've run into a problem;
>
> I use the following construct to push new values fairly deeply inside
> an array structure;
>
> $chase = chaseToReference ($wm, $path);
> $arr = result($chase);
> $arr[$v] = $lid;
>
> $path is a flat-list array of indexes in $wm that have to be traversed
> to get to the right portion of $wm.
> a debug-dump of $wm and $arr after running this code shows $arr
> correctly updated, but $wm not. :((
>
> here are the functions involved, any help is much appreciated.
>
> function chaseToReference (&$array, $path) {
>  if (!empty($path)) {
>    if (empty($array[$path[0]])) {
>                        return badResult (E_USER_WARNING, array(
>                                'msg' => 'Could not walk the full tree',
>                                '$path' => $path,
>                                '$array (possibly partially walked)' => $array
>                        ));
>    } else return chaseToReference($array[$path[0]], array_slice($path, 1));
>  } else {
>    return goodResult($array);
>  }
> }
>
> function result(&$r) {
>  return $r['result'];
> }
>
> function goodResult(&$r) {
>  $r2 = array (
>  'isMetaForFunc' => true,
>        'result' => &$r
>  );
>  return $r2;
> }
>

After a quick glance, I can't actually see any modifications to $wm in
this code.

Regards
Peter

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