Error connection:SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)<br><br><br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function prepare() on null in /home/diplomad/public_html/course.php:35
Stack trace:
#0 {main}
  thrown in <b>/home/diplomad/public_html/course.php</b> on line <b>35</b><br />