Warning: session_save_path(): Cannot change save path when headers already sent in /index.php on line 13

Warning: session_start(): Cannot start session when headers already sent in /index.php on line 14

Fatal error: Uncaught Error: Call to undefined function mysql_pconnect() in /inc/database.inc.php:17 Stack trace: #0 /index.php(17): include_once() #1 {main} thrown in /inc/database.inc.php on line 17