title: GET Not Working With Alpha Characters
body: <p>Can someone point me in the right direction?</p>
  
  <p>I have a GET request that pulls results from mysql.</p>
  
  <p>Why would it work for:</p>
  
  <p><a href="http://someurl.com/process.php?id=123456789" rel="nofollow">http://someurl.com/process.php?id=123456789</a></p>
  
  <p>but not for:</p>
  
  <p><a href="http://someurl.com/process.php?id=A23456789" rel="nofollow">http://someurl.com/process.php?id=A23456789</a></p>
  
  <pre><code>if ( isset($_GET['id']) ) {
  $sql = &lt;&lt;&lt; SQL
  SELECT *
  FROM `table`
  WHERE `id` = $_GET[id]
  SQL;
  
  more code... }
  </code></pre>