sorting array list based on files extension in php?

Hi
Is it possible in PHP to do something like this?Here is an example.

print_r($content);

Array
(
    [2] => /userupload/one.exe
    [3] => /userupload/avatar.jpg
    [0] => /userupload/two.exe
    [1] => /userupload/three.jpg
    [4] => /userupload/three.exe
)

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but i want array sort based on  file extension like .exe , .jpg,.pdf etc

Array
(
    [2] => /userupload/one.exe
    [4] => /userupload/three.exe
    [0] => /userupload/two.exe
    [3] => /userupload/avatar.jpg
    [1] => /userupload/three.jpg
   )

Select allOpen in new window