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Dieses Dokument verwendet PHP-Handbuch für chinesische Websites Freigeben
(PECL mongo >=0.9.0)
MongoCursor::hasNext — Checks if there are any more elements in this cursor
此函数没有参数。
Returns if there is another element.
Throws MongoConnectionException if it cannot reach the database and MongoCursorTimeoutException if the timeout is exceeded.