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