Re: Re: Extracting multi dimensional array value

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Sorting is always more expensive than going through the array once. I would
just iterate through once and keep track of the smallest or largest element
by storing the smallest or largest element in a temporary variable. There
should really be a php function for that.

On Sun, 3 May 2015 4:07 am Ron Piggott <ron.piggott@xxxxxxxxxxxxxxxxxx>
wrote:

> On 02/05/15 07:29, Christoph Becker wrote:
> > Ashley Sheridan wrote:
> >
> >> On 2 May 2015 11:57:42 BST, Christoph Becker <cmbecker69@xxxxxx> wrote:
> >>> Ron Piggott wrote:
> >>>
> >>>> I have the following array:
> >>>>
> >>>> Array
> >>>> (
> >>>>      [es-PR] => 2014-11-04 08:22:07
> >>>>      [en-US] => 2009-04-05 09:00:00
> >>>>      [es-MX] => 2014-11-08 02:25:40
> >>>> )
> >>>>
> >>>> How can I extract the oldest date from it?  The language ISO order is
> >>>> going to change randomly.
> >>> I suggest you sort() the array, and then access the first element:
> >>>
> >>>   sort($array);
> >>>   $oldest = $array[0];
> >> Sorting like this would put the earliest date first, and you can't
> access it by numeric index.
> Ron is looking for the oldest date, what seems to be the same as the
> earliest date. Anyhow, otherwise one could use rsort() instead of
> sort(). Accessing by numeric index is possible after either sorting,
> because both functions don't keep the keys (contrary to asort() and
> arsort()): $array = [ 'es-PR' => '2014-11-04 08:22:07', 'en-US' =>
> '2009-04-05 09:00:00', 'es-MX' => '2014-11-08 02:25:40' ]; sort($array);
> var_dump($array);
>
>
>
> In the end I've used
>
> // sort newest to oldest translation
>
> rsort($array);
>
> // extract oldest translation
>
> $array=end($array);
>
> Thank you very much for your help.
>
> Ron
>
>
>

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