Notice: A non well formed numeric value encountered in /index.php on line 22

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /system/database/mysql.php:6 Stack trace: #0 /system/library/db.php(12): MySQL->__construct('localhost', 'web_active23', 'awag1234webacti...', 'web_active23') #1 /index.php(33): DB->__construct('mysql', 'localhost', 'web_active23', 'awag1234webacti...', 'web_active23') #2 {main} thrown in /system/database/mysql.php on line 6