Sort Multi Array in PHP

Question

Does anybody have an idea how can I sort this array by key (date) in PHP?

Array
(   
    [2011-02-16] => Array
        (
            [date] => 2011-02-16
          


        

Answer 1

Since your array already has the date in the keys, why not just use ksort? The string comparison should work fine since you're using YYYY-MM-dd format.