title: PHP PDO wrapper update +1
body: <p>As stated in the title, how do I update the field by adding +1?</p>
  
  <p>I'm using a PDO wrapper class from <a href="http://www.imavex.com/php-pdo-wrapper-class/index.php" rel="nofollow noreferrer">http://www.imavex.com/php-pdo-wrapper-class/index.php</a> </p>
  
  <p>I tried the code below and it's not updating the field:</p>
  
  <pre><code>1. $update = array('log' =&gt; 'log+1');
  2. $update = array('log' =&gt; '+1');
  
  $DB-&gt;update('user', $update, "idClient = 1");
  </code></pre>
  
  <p>Please help!</p>