sortmythings.php

function sortMyThings($things) {
  uasort($things, function($left, $right) {
  	$l1 = strtoupper(clean($left['manufacturer']));
  	$r1 = strtoupper(clean($right['manufacturer']));

  	if (0 !== strcmp($l1, $r1)) return strcmp($l1, $r1) < 0? -1 : 1;

  	$l2 = strtoupper(clean($left['brand']));
  	$r2 = strtoupper(clean($right['brand']));

  	if (0 !== strcmp($l2, $r2)) return strcmp($l2, $r2) < 0? -1 : 1;

  	$l3 = !empty($left['type'])? $left['type'] : $left['title'];
  	$r3 = !empty($right['type'])? $right['type'] : $right['title'];

    $l3 = strtoupper(clean($l3));
    $r3 = strtoupper(clean($r3));

    if (0 == strcmp($l3, $r3)) return 0;
    return strcmp($l3, $r3) < 0? -1 : 1;
  });
  return $things;