Supposing you have an object:
$arr = array(
array('name' => 'toto', 'firstname' => 'abc'),
array('name' => 'toto2', 'firstname' => 'aaa')
);
I want to order it by name AND firstname. You cannot use keyword "use" for old version of php like 5.2. If a general function is not possible, then build a function for this specific case.
Thanks.