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Warning: mysqli::mysqli(): php_network_getaddresses: getaddrinfo failed: The requested name is valid, but no data of the requested type was found. in C:\xampp\htdocs\HMCC\kp2.php on line 2

Warning: mysqli::mysqli(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: The requested name is valid, but no data of the requested type was found. in C:\xampp\htdocs\HMCC\kp2.php on line 2

Notice: Undefined variable: db in C:\xampp\htdocs\HMCC\kp2.php on line 4

Notice: Trying to get property of non-object in C:\xampp\htdocs\HMCC\kp2.php on line 4
Unable to connect to database []