nullvote_poll

Usage: bool nullvote_poll (int topicid)
Purpose: Casts a null vote in a poll.
Availability: IPB SDK 0.5

Casts a null vote in the poll in topic topicid. Returns TRUE on success.

If the user is not logged in, has already voted, or an invalid poll or option is specified, FALSE will be returned. The full error message can be accessed with sdk_info.

// Casts a Null Vote in the poll in Topic 23
$SDK->nullvote_poll ("23");