Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/test/conn_wifi.php on line 16

Warning: mysql_connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/test/conn_wifi.php on line 16
"Could not connect: php_network_getaddresses: getaddrinfo failed: Name or service not known"