Sort a 2d array by one of its columns

Question

I have this array:

[fournisseurs_1331566668.csv] => Array
    (
        [name] => fournisseurs_1331566668.csv
        [date] => 1331566694
    )

[fournisseurs_1385460508.csv] => Array
    (
        [name] => fournisseurs_1385460508.csv
        [date] => 1385460517
    )

[fournisseurs_1334062493.csv] => Array
    (
        [name] => fournisseurs_1334062493.csv
        [date] => 1334062505
    )

I want to sort by the date (Descending order).

What function should I use? I tried with sort() and array_multisort(), but I'm not getting the desired result.

Answer 1

I made this function to sort every multidimensional array by one of his columns :

 function sortArrayBy($array , $column_name,$sort=SORT_DESC){

    foreach ($array as $key => $row) {
      $column[$key]  = $row[$column_name];
    }

    array_multisort($column, $sort, $array);
    return $array;

}

Call it like this :

<?php sortArrayBy($yourArray,'date') ; ?>