Ben bir çok boyutlu bir dizi var:

$array[0] = array ( name => "Bob",
    position => "Chair",
    email => "bob@foo.bar"
);
$array[1] = array ( name => "Al",
    position => "",
    email => "al@foo.bar"
);
//etc..

I want to sort it so that those whose position != "" are first, then the rest alphabetically by name... I'm not very familiar w/ sorting multidimensional arrays, could someone help me? Thanks!