Sorting 2D arrays on index?

[furious5]

Can anyone help me out, I'm trying to sort an array by the a value in a 2D array e.g par.

Anyone got any ideas of how to achieve this??

Array looks like this:

Array
(
    [0] => Array
        (
            [id] => 456
            [name] => Phil Mickelson
            [country] => Us
            [0] => 69
            [1] => 69
            [2] => 69
            [3] => 69
            [total] => 276
            [par] => 12
        )

[1] => Array
    (
        [total] => 277
        [id] => 219
        [0] => 72
        [1] => 71
        [2] => 67
        [3] => 67
        [par] => 11
        [country] => Za
        [name] => Ernie Els
    )
)

[Shrike]

You want [MAN]uksort[/MAN].

[furious5]

Thanks for the link, what I'm struggling to get my head around is the comparision given I am dealing with a 2D array.

The example only gives a comparision on a single array.

[bubblenut]

No the example is for a 2D array, you need it for a 3D array, a 1D array would be a basic variable. Take a look at [man]array_multisort()[/man] for help on sorting multi-dimentional arrays.

[furious5]

I looked at multi-sort already, but I am still confused about how you can get it to sort on a named array index??????

[bubblenut]

Take a moment to look beyond the end of your nose and you'll see there's a whole world out there! :rolleyes:

Go back to the page I linked to and scroll down to the comments. He's not actually correct, you can use array_multisort on an array of his description. Nevertheless, his method works also.

[Shrike]

I've never used array_multisort(). But here's how with uksort() 🙂

<?php

$array[0] = array(
	"sort"	=>	3
);
$array[1] = array(
	"sort"	=>	2
);
$array[2] = array(
	"sort"	=>	4
);
$array[3] = array(
	"sort"	=>	1
);

print_r($array); // Before sort

uksort($array, "cmp");

print_r($array); // After sort

function cmp($a, $b) {
	global $array;
	return strcmp($array[$a]['sort'], $array[$b]['sort']);
}
?>