title: usort is returning array in reverse order
body: <p>This usort function is returning the array reverse from what I want. It's returning an array like ("1", "2", "3"). How can I make it return ("3", "2", "1")?</p>
  
  <pre><code>usort($myArray, function($a, $b) {
      return $a["comments"] - $b["comments"];
  });
  </code></pre>