Return the servers to which this manager is connected

# MongoDB\Driver\Manager::getServers

(mongodb >=1.0.0)

MongoDB\Driver\Manager::getServers — Return the servers to which this manager is connected

### 説明

final public MongoDB\Driver\Manager::getServers ( void ) : array

Returns an array of MongoDB\Driver\Server instances to which this manager is connected.

> 注意: Since the driver connects to the database lazily, this method may return an empty array if called before executing an operation on the MongoDB\Driver\Manager.

### パラメータ

この関数にはパラメータはありません。

### 返り値

Returns an array of MongoDB\Driver\Server instances to which this manager is connected.

### エラー / 例外

- 引数のパースに失敗した場合に MongoDB\Driver\Exception\InvalidArgumentException をスローします。

### 例

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

`<?php
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");
/* The driver connects to the database server lazily, so Manager::getServers()
* may initially return an empty array. */
var_dump($manager->getServers());
$command = new MongoDB\Driver\Command(['ping' => 1]);
$manager->executeCommand('db', $command);
var_dump($manager->getServers());
?>`

上の例の出力は、 たとえば以下のようになります。

    array(0) {
    }
    array(1) {
      [0]=>
      object(MongoDB\Driver\Server)#3 (10) {
        ["host"]=>
        string(9) "localhost"
        ["port"]=>
        int(27017)
        ["type"]=>
        int(1)
        ["is_primary"]=>
        bool(false)
        ["is_secondary"]=>
        bool(false)
        ["is_arbiter"]=>
        bool(false)
        ["is_hidden"]=>
        bool(false)
        ["is_passive"]=>
        bool(false)
        ["last_is_master"]=>
        array(8) {
          ["ismaster"]=>
          bool(true)
          ["maxBsonObjectSize"]=>
          int(16777216)
          ["maxMessageSizeBytes"]=>
          int(48000000)
          ["maxWriteBatchSize"]=>
          int(1000)
          ["localTime"]=>
          object(MongoDB\BSON\UTCDateTime)#4 (1) {
            ["milliseconds"]=>
            int(1447267964517)
          }
          ["maxWireVersion"]=>
          int(3)
          ["minWireVersion"]=>
          int(0)
          ["ok"]=>
          float(1)
        }
        ["round_trip_time"]=>
        int(554)
      }
    }

### 参考

- MongoDB\Driver\Server
- MongoDB\Driver\Manager::selectServer() - Select a server matching a read preference