sort_by_value.php

<?php

$array = array(
    array( 
        'person' => array(
            'name' => 'Beavis',
            'age' => 13,
        ),
    ),
    array(
        'person' => array(
            'name' => 'Cornholio',
            'age' => 101
        ),
    ),
    array(
        'person' => array(
            'name' => 'Butthead',
            'age' => 15,
        ),
    )
);

# Is there a builtin to sort these people by their age descending?

var_dump($array);