(PECL mongo >=0.9.6)
MongoCursor::dead — Checks if there are results that have not yet been sent from the database
The database sends responses in batches of documents, up to 4MB of documents per response. This method checks if the database has more batches or if the result set has been exhausted.
A cursor being "dead" does not mean that
MongoCursor::hasNext() will return FALSE, it only means
that the database is done sending results to the client. The client should
continue iterating through results until
MongoCursor::hasNext() is FALSE.
此函数没有参数。
Returns TRUE if there are more results that have not yet been sent to the
client, and FALSE otherwise.