title: MySQL SUM for Persian numbers not working
body: <p>I have a DB and Tables with collation utf8_general_ci (all of them) and charset utf8 (all of them) ...
  In this table:</p>
  
  <h2><a href="https://i.stack.imgur.com/5JItJ.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5JItJ.jpg" alt="Screenshot from PHPMyAdmin"></a></h2>
  
  <p>and with this PHP code:</p>
  
  <pre><code>$query = "SELECT SUM(carpet_rows) AS cr_sum FROM form1";
  if ($result = mysqli_query($db,$query)) {
      $row = mysqli_fetch_array($result);
      echo $row['cr_sum'];
  }
  </code></pre>
  
  <p>I want to see ۳۵۰۰
  but I see zero?!</p>