php_getdns_context_set_dns_transport

(PECL getdns >= 0.10.0)

php_getdns_context_set_dns_transport — Set the transport protocol to be used for DNS lookups.

int php_getdns_context_set_dns_transport ( int $context , int $value )

This function sets the transport protocol to be used for 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 to be set. Valid options include GETDNS_TRANSPORT_UDP_FIRST_AND_FALL_BACK_TO_TCP, GETDNS_TRANSPORT_UDP_ONLY, GETDNS_TRANSPORT_TCP_ONLY, or GETDNS_TRANSPORT_TCP_ONLY_KEEP_CONNECTIONS_OPEN.

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