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(PECL mongo >=1.5.0)
MongoDB::getWriteConcern — Get the write concern for this database
此函数没有参数。
This function returns an array describing the write concern. The array contains the values w for an integer acknowledgement level or string mode, and wtimeout denoting the maximum number of milliseconds to wait for the server to satisfy the write concern.
Example #1 MongoDB::getWriteConcern() return value example
<?php
$mc = new MongoClient ( 'mongodb://localhost:27017' , array( 'wTimeoutMS' => 500 ));
$db = $mc -> selectDB ( 'test' );
var_dump ( $db -> getWriteConcern ());
$db -> setWriteConcern ( 1 , 1000 );
var_dump ( $db -> getWriteConcern ());
?> 以上例程会输出:
array(2) {
["w"]=>
int(1)
["wtimeout"]=>
int(500)
}
array(2) {
["w"]=>
int(1)
["wtimeout"]=>
int(1000)
}