php_getdns_context_get_dns_transport

(PECL getdns >= 0.10.0)

php_getdns_context_get_dns_transport — Get the identifier that describes the transport protocol being used for DNS lookups.

int php_getdns_context_get_dns_transport ( int $context , int &$value )

This function gets the identifier that describes the transport protocol being used for DNS lookups.

context: The previously created DNS context that is to be used with this request.
value: The value of the transport protocol option. Valid options include GETDNS_TRANSPORT_UDP_FIRST_AND_FALL_BACK_TO_TCP, GETDNS_TRANSPORT_UDP_ONLY, GETDNS_TRANSPORT_TCP_ONLY, and GETDNS_TRANSPORT_TCP_ONLY_KEEP_CONNECTIONS_OPEN. Note that this argument is passed by reference and any existing value will be overwritten.

This function returns an integer response code. GETDNS_RETURN_GOOD indicates successful completion.