title: How to get the highest and lowest value items of an array?
body: <p>In an array like this:</p>
  
  <pre><code>$array['abc'] = 10;
  $array['foo'] = 90;
  $array['bar'] = 0;
  $array['baz'] = 50;
  </code></pre>
  
  <p>How can I retrieve the highest value item (90 in the above example) and the lowest value (0 in above example)?</p>