title: How to remove numbers from a string with RegEx
body: <p>I have a string like this:</p>
  
  <pre><code>" 23 PM"
  </code></pre>
  
  <p>I would like to remove <code>23</code> so I'm left with <code>PM</code> or (with space truncated) just <code>PM</code>.</p>
  
  <p>Any suggestions?</p>
  
  <p>Needs to be in PHP</p>