|
|
Posted by jerrygarciuh on 09/30/05 11:18
Gotcha. Thing is, I am stumped as to how to use this in context.
For instance if I am using foreach() which I know uses a copy of the array
and my PHP version does not allow me to pass the array by ref then I see the
pointer listed at 0 as I iterate:
<?
$ary = array('a','b','c','d');
foreach ($ary as $a) {
echo key($ary) . ',';
}
?>
// outputs 0,0,0,0
What I was looking to do was to be able to, at any given moment, was say
'what is my index in array X?' but key() does not seem equipped to do this.
Obviously I can do something like this :
<?
$ary = array('a','b','c','d');
$idx = 0;
foreach ($ary as $a) {
// whatever
$idx++;
}
?>
but it's less elegant than I wanted.
Thx for your replies!
jg
"Andy Hassall" <andy@andyh.co.uk> wrote in message
news:l4fha1dsqsto68caaelo5vo9o1c1hjeg4c@4ax.com...
> On Thu, 9 Jun 2005 16:54:45 -0500, "jerrygarciuh"
> <designs@no.spam.nolaflash.com> wrote:
>
>> $ary = array('a','b','c','d');
>> while ($x = array_shift($ary)) {
>> echo key($ary) . ',';
>> }
>>
>>// output is 0,0,0
>>
>>It seems to only work (as advertised in docs) on associative arrays.
>
> The output is consistent, since array_shift modifies the array.
>
> Each time you call it, it removes an entry __and shifts the numeric
> indices__.
>
> For associative arrays, the keys remain the same.
>
> --
> Andy Hassall / <andy@andyh.co.uk> / <http://www.andyh.co.uk>
> <http://www.andyhsoftware.co.uk/space> Space: disk usage analysis tool
Navigation:
[Reply to this message]
|