Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/html/db_connect.php on line 12

Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/html/db_connect.php on line 12
Host : php_network_getaddresses: getaddrinfo failed: Name or service not known