Return the WriteConcern for the Manager

# MongoDB\Driver\Manager::getWriteConcern

(mongodb >=1.0.0)

MongoDB\Driver\Manager::getWriteConcern — Return the WriteConcern for the Manager

### 説明

final public function MongoDB\Driver\Manager::getWriteConcern(): MongoDB\Driver\WriteConcern

Returns the MongoDB\Driver\WriteConcern for the Manager, which is derived from its URI options. This is the default write concern for writes and commands executed on the Manager.

### パラメータ

この関数にはパラメータはありません。

### 戻り値

The MongoDB\Driver\WriteConcern for the Manager.

### エラー / 例外

- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

### 例

例1 MongoDB\Driver\Manager::getWriteConcern() example

    <?php

    $manager = new MongoDB\Driver\Manager('mongodb://localhost:27017');
    var_dump($manager->getWriteConcern());

    $manager = new MongoDB\Driver\Manager('mongodb://localhost:27017/?w=majority&wtimeoutMS=2000');
    var_dump($manager->getWriteConcern());

    ?>

上の例の出力は、 たとえば以下のようになります。

    object(MongoDB\Driver\WriteConcern)#2 (0) {
    }
    object(MongoDB\Driver\WriteConcern)#1 (2) {
      ["w"]=>
      string(8) "majority"
      ["wtimeout"]=>
      int(2000)
    }

### 参考

- MongoDB\Driver\WriteConcern
- MongoDB\Driver\Manager::__construct() - Create new MongoDB Manager

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