PHP sort multidimensional array with primary & secondary keys

Question

How do you sort a multidimensional array by primary and secondary key? For example, assuming the following array:

$result = array();

$result[0][\"prio\"] =          


        

Answer 1

PHP doesn't have a built-in function to do complex sorting like this, so you'll need to do a usort(), which allows you to sort items using a function that specifies your own criteria.

The example given on the PHP manual page is almost an exact match for what you want to achieve.