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Dieses Dokument verwendet PHP-Handbuch für chinesische Websites Freigeben
(mongodb >=1.0.0)
MongoDB\Driver\Server::isPrimary — Checks if this server is a primary member of a replica set
Returns whether this server is a » primary member of a replica set.
此函数没有参数。
Returns TRUE
if this server is a primary member of a replica set, and
FALSE
otherwise.