Array sort
Before sort
Array
(
[1] => 4
[2] => d
[3] => r
[4] => F
[5] => A
[6] => F
[7] => n
[8] => 2
[9] => k
)
After sort
Array
(
[0] => 2
[1] => 4
[2] => A
[3] => F
[4] => F
[5] => d
[6] => k
[7] => n
[8] => r
)