Array sort

Before sort

Array
(
    [1] => Q
    [2] => l
    [3] => r
    [4] => 7
    [5] => o
    [6] => T
    [7] => F
    [8] => H
    [9] => 0
)

After sort

Array
(
    [0] => 0
    [1] => 7
    [2] => F
    [3] => H
    [4] => Q
    [5] => T
    [6] => l
    [7] => o
    [8] => r
)