title: PDOexception - 'could not find driver'
body: <p>I woork on my local site with MAMP. Everything was going right till yesterday. Now, when I run my code,  I get a : "Fatal error: Uncaught exception 'PDOException' with message 'could not find driver'..." It seems that  I have non installed driver but it worked well until this day. How can I fix this problem ?</p>
  
  <p>Best, 
  Newben</p>