Re: array conversion
| From: | Larry Garfield | Date: | Fri, 19 Feb 2010 06:19:33 +0000 |
| Subject: | Re: array conversion | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-302191@lists.php.net to get a copy of this message | ||
On Thursday 18 February 2010 11:58:28 pm Paul M Foster wrote:
> On Fri, Feb 19, 2010 at 01:20:12PM +0800, Dasn wrote:
> > Hi guys. How to convert an array like:
> >
> > Array
> > (
> > [0] => key1
> > [1] => value1
> > [2] => key2
> > [3] => value2
> > )
> >
> > to
> >
> >
> > Array
> > (
> > [key1] => value1
> > [key2] => value2
> > )
> >
> > Is there a built-in function to do this?
> > Please Cc me. :)
> > Thank you in advance.
>
> I don't believe so, but rolling your own should not be too hard:
>
> $a = array($key1, $value1, $key2, $value2);
> $b = array();
> $numitems = count($a);
>
> for ($i = 0; $i < $numitems; $i++) {
> if ($i % 2 == 0) {
> $saved_key = $a[$i];
> }
> elseif ($i % 2 == 1) {
> $b[$saved_key] = $a[$i];
> }
> }
>
> Code is crude and untested, but you get the idea.
>
> Paul
This would be even shorter, I think:
foreach ($items as $i => $value) {
$temp[$i % 2][] = $value;
}
$done = array_combine($temp[0], $temp[1]);
(Also untested, just off the cuff...)
--Larry Garfield