Array sort
Before sort
Array
(
[1] => T
[2] => K
[3] => C
[4] => y
[5] => b
[6] => W
[7] => C
[8] => u
[9] => V
)
After sort
Array
(
[0] => C
[1] => C
[2] => K
[3] => T
[4] => V
[5] => W
[6] => b
[7] => u
[8] => y
)