Php/docs/mongocollection.setwriteconcern
来自菜鸟教程
MongoCollection::setWriteConcern
(PECL mongo >=1.5.0)
MongoCollection::setWriteConcern — Set the write concern for this database
说明
public MongoCollection::setWriteConcern
( mixed $w
[, int $wtimeout
] ) : bool
参数
w
- The write concern. This may be an integer denoting the number of servers required to acknowledge the write, or a string mode (e.g. "majority").
wtimeout
- The maximum number of milliseconds to wait for the server to satisfy the write concern.
返回值
Returns true
on success, or false
otherwise.
错误/异常
Emits E_WARNING
if the w
parameter is not an integer or string value.
范例
Example #1 MongoDB::setWriteConcern() example
<?php$mc = new MongoClient('mongodb://rs1.example.com,rs2.example.com');$coll = $mc->selectCollection('test', 'foo');// Require that the majority of servers in the replica set acknowledge writes// within three seconds.$coll->setWriteConcern('majority', 3000);?>
参见
- The write concern documentation.
- MongoCollection::getWriteConcern() - Get the write concern for this collection