MongoDB::setWriteConcern

(PECL mongo >=1.5.0)

MongoDB::setWriteConcern — Set the write concern for this database

说明

public MongoDB::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

示例 #1 MongoDB::setWriteConcern() example

<?php

$mc = new MongoClient('mongodb://rs1.example.com,rs2.example.com');
$db = $mc->selectDB('test');

// Require that the majority of servers in the replica set acknowledge writes
// within three seconds.
$db->setWriteConcern('majority', 3000);
?>

参见