sort array in DESC order

Question

How can i sort this array by arrray key

array(
4 => 'four',
3 => 'three',
2 => 'two',
1 => 'one',
)

like this

array(
1 => 'one',
2 => 'two',
3 => 'three',
4 => 'four',
)

Answer 1

If you want to sort the keys in DESC order use:

krsort($arr);

If you want to sort the values in DESC order and maintain index association use:

arsort($arr);

If you want to sort the values in DESC natural order and maintain index association use:

natcasesort($arr);
$arr = array_reverse($arr, true);

Answer 2

If you just want to reverse the order, use array_reverse:

$reverse = array_reverse($array, true);

The second parameter is for preserving the keys.