Sorting values in arrays

before the sort:
Array
(
    [0] => dragon
    [1] => unicorn
    [2] => tiger
    [3] => parrot
    [4] => scorpion
)

after the sort:
Array
(
    [0] => dragon
    [1] => parrot
    [2] => scorpion
    [3] => tiger
    [4] => unicorn
)