PHP按元素大小/字符串大小排序关联数组的数组

Question

Is there a way to sort an array of associative arrays by the length of one of the elements? What I am trying to do is order the arrays by the largest to smallest description length.

$some_array = [];
$some_array[0] = ['name'=>'a name','description'=>'a description'];
$some_array[1] = ['name'=>'a name1','description'=>'a description 1'];
$some_array[2] = ['name'=>'a name2','description'=>'a description two for the third array element'];
$some_array[3] = ['name'=>'a name3','description'=>'a description three'];

With the above example $some_array[2] should come first followed by 3 then 1 then 0.

Answer 1

PHP >= 5.5.0 needed for array_column:

array_multisort(array_map('strlen', array_column($some_array, 'description')),
                SORT_DESC,
                $some_array);