On 25 January 2007 10:55, Alexander Sagen wrote:
> Roman Neuhauser skrev:
> > # [EMAIL PROTECTED] / 2007-01-25 08:12:14 +0200:
> > > How can I sort an array like this so that it would be ASC ordered
> > > by the [1] key in subarrays? I need to maintain only the subarray
> > > key - value pairs. (Do I make sense?)
> > >
> > > Array
> > > (
> > > [0] => Array
> > > (
> > > [0] => Logo
> > > [1] => NameC
> > > [2] => Home
> > > [3] => url
> > > )
> > >
> > > [1] => Array
> > > (
> > > [0] => Logo
> > > [1] => NameA
> > > [2] => Home
> > > [3] => url
> > > )
> > >
> > > [2] => Array
> > > (
> > > [0] => Logo
> > > [1] => NameG
> > > [2] => Home
> > > [3] => url
> > > )
> > > }
> >
> > http://www.php.net/usort
> >
> I think usort would be a bit overkill, he would probably find himself
> making a function to sort and maintain the association between the
> subarrays. Go with array_multisort, it would be a one-liner.
What total tosh! array_multisort() won't handle this one -- usort() is
correct. The only function needed is a (one-liner!) custom comparison to
compare individual [1] elements -- usort() takes care of all the rest:
function compare_1($a, $b) { return strcmp($a[1], $b[1]); }
usort($array, 'compare_1');
Or even, for single use, collapse it to:
usort($array, create_function('$a,$b', 'return strcmp($a[1], $b[1]);');
Cheers!
Mike
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