Warning: ini_set(): Headers already sent. You cannot change the session module's ini settings at this time in /var/www/html/mine/session.php on line 3

Warning: session_set_cookie_params(): Cannot change session cookie parameters when headers already sent in /var/www/html/mine/session.php on line 4

Warning: session_start(): Cannot start session when headers already sent in /var/www/html/mine/session.php on line 5

Fatal error: Cannot redeclare selectDB() (previously declared in /var/www/html/mine/connectionString.php:31) in /var/www/html/mine/connectionString.php on line 31