title: Comma separated list from array with "and" before last element
body: <p>I have an array (<code>$number_list</code>) that has a dynamically generated list of values. There will be at least 1 value in the array and no more than 4.</p>
  
  <p>Currently, I have a nice way of having a comma separated list using this...</p>
  
  <pre><code>$comma_list = implode(', ', $number_list);
  </code></pre>
  
  <p>However, I'd like to keep with English convention and have the word "and" before the last element.  So, let's say $number_list contains the values 4, 5, 6, 7.  I would want to echo a statement like, "The list is 4, 5, 6, <strong>and</strong> 7."</p>
  
  <p>Any ideas how to get that <strong>and</strong> in there?</p>