Array sort

Before sort

Array
(
    [1] => B
    [2] => P
    [3] => A
    [4] => w
    [5] => D
    [6] => s
    [7] => J
    [8] => d
    [9] => w
)

After sort

Array
(
    [0] => A
    [1] => B
    [2] => D
    [3] => J
    [4] => P
    [5] => d
    [6] => s
    [7] => w
    [8] => w
)