title: PDO Exception could not find driver
body: <p>I know this question have been asked a thousand of times, but I can't find a solution. I'm running <strong>Symfony 2</strong> with a <strong>PostgreSql</strong> database (php running in MAMP, and PG DB on an another port and install).</p>
  
  <p>I was running well (could have install the DB using the app/console create cmd) however now I can't use it anymore for updating the schema. Got the error : </p>
  
  <pre><code>PDO Exception, could not find driver error
  </code></pre>
  
  <p>I tried everything:</p>
  
  <ul>
  <li>Php.ini verification : OK  </li>
  <li>using the same in the <code>CLI</code> and <code>phpInfo();</code>  </li>
  <li>PDO verification in phpInfo : drivers enabled for pgSQL mySQL etc...  </li>
  <li>Restart Mamp + OSX apache server : OK</li>
  </ul>