Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: hostname nor servname provided, or not known in /var/www/docs_skola03/connectdb.php on line 2

Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: hostname nor servname provided, or not known in /var/www/docs_skola03/connectdb.php on line 2
Could not connect