title: Pdo error with invalid parameters
body: <p>I have an error since yesterday on my crud and I'm becoming crazy.
  For editing entries in my database, I have two files: </p>
  
  <ul>
  <li><p><strong>edit.php</strong> with the editing form identified by the parameter id
  <a href="https://i.stack.imgur.com/aq8Eu.png" rel="nofollow noreferrer">see code</a></p></li>
  <li><p><strong>doedit.php</strong> that actually modify the entry in database
  <a href="https://i.stack.imgur.com/9LXJ6.png" rel="nofollow noreferrer">see code</a></p></li>
  </ul>
  
  <p>and the warning returned is : <br>
  PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number: parameter was not defined in <strong>/Users/joseteixeira/Sites/TP-PHP/admin/doedit.php</strong> on line <strong>47</strong></p>
  
  <p>Any idea on what might have gone wrong ? </p>