On Thu, 13 Feb 2003, Sean Brown wrote:
> Let's say I've got an array like so:
>
> $myarray[0]["firstname"] = "Mickey";
> $myarray[0]["lastname"] = "Mouse";
> $myarray[0]["score"] = 20;
>
> $myarray[1]["firstname"] = "Donald";
> $myarray[1]["lastname"] = "Duck";
> $myarray[1]["score"] = 10;
>
> I'd like be able to sort the array using different dimensions before I
> cycle through a while loop to print out the results. For instance, by
> lastname, or by score. I can't seem to get array_multisort() to do it.
array_multisort() isn't what you want.
> Any ideas?
I've seen this question too many times go through here w/ lots of links,
and no code ... so here ya go. (And I think someone else asked a similar
question today too ... you too, listen up ;)
You can use the usort() function to your advantage. This is how:
<?php
// your $myarray definition here, unmodified
$sortKey = "score";
function myCompare( $arrayA, $arrayB ){
global $sortKey;
if( $arrayA[$sortKey] == $arrayB[$sortKey] )
return 0;
return( $arrayA[$sortKey] < $arrayB[$sortKey] ? -1 : 1 );
}
usort( $myarray, "myCompare" );
var_dump( $myarray );
?>
Obviously, you could sort by the other keys by changing the value
of $sortKey, in the code above, or sort in reverse order by flipping
the inequality comparison operator in myCompare().
http://www.php.net/manual/en/function.usort.php ... for all your usort()
goodness.
g.luck,
~Chris
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
