Ne jamais coder bourré

gistfile1.php

usort($objects, function($a, $b){
    $a1 = $a->getName();
    $b1 = $b->getName();

    if ($a1 == $b1) {
        return strnatcmp($a1, $b1);
    } else {
        return strnatcmp($a->getName(), $b->getName());
    }
});