MongoDB::setWriteConcern

(PECL mongo >=1.5.0)

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

说明

public bool MongoDB::setWriteConcern ( mixed $w [, int $wtimeout ] )

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' );
 $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

The write concern documentation.
MongoDB::getWriteConcern() - Get the write concern for this database