MongoDB\Driver\ReadConcern::__construct
PHP function
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(mongodb >=1.0.0)
Create a new ReadConcern
Description
MongoDB\Driver\ReadConcern::__construct(string|null $level = null)
Constructs a new MongoDB\Driver\ReadConcern, which is an immutable value object.
Parameters
levelThe read concern level. You may use, but are not limited to, one of the class constants.
Errors/Exceptions
Examples
MongoDB\Driver\ReadConcern::__construct() example
php
<?php
/* Unspecified read isolation level (uses the server's default behavior) */
$rc = new MongoDB\Driver\ReadConcern();
/* Request read isolation from a single replica set node */
$rc = new MongoDB\Driver\ReadConcern(MongoDB\Driver\ReadConcern::LOCAL);
/* Request read isolation from a majority of the replica set nodes */
$rc = new MongoDB\Driver\ReadConcern(MongoDB\Driver\ReadConcern::MAJORITY);
?>See Also
- Read Concern reference