case insensitive user sort function.

[Anon]

i have a 2D array, and i want to sort alphabetically by an item in the inner array.

right now i just do something like this:

function cmp ($a, $b) {
return ($b[0] - $a[0]);
}

usort($resources, cmp);

and that will sort on the "0" item as long as the contents are numbers...

i want to do something similar with a case insensitive search... is their a user function already made i could use?

thanks

[theslinky]

Hi,

I took most of this code from the PHP manual. This will sort a set of strings alphabetically and case-insensitive:

function cmp ($a, $b) {
return strcmp(strtolower($a),strtolower($b));
}

$fruits[0] = "lemons";
$fruits[1] = "apPLes";
$fruits[2] = "grapes";
$fruits[3] = "ApriCOts";

usort($fruits, "cmp");

hope this helps,
-sridhar