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    The MongoDB\Driver\ServerApi class

    (mongodb >=1.10.0)

    Introduction

    Class synopsis

    final class MongoDB\Driver\ServerApi implements MongoDB\BSON\Serializable, Serializable {
    /* Constants */
    const string MongoDB\Driver\ServerAPI::V1 = "1";
    /* Methods */
    final public bsonSerialize(): stdClass
    final public __construct(string $version, ?bool $strict = null, ?bool $deprecationErrors = null)
    final public serialize(): string
    final public unserialize(string $data): void
    }

    Predefined Constants

    MongoDB\Driver\ServerApi::V1

    Server API version 1.

    Examples

    Example #1 Declare an API version on a manager

    <?php

    use MongoDB\Driver\Manager;
    use     MongoDB\Driver\ServerApi;

    $v1 = new ServerApi(ServerApi::v1);
    $manager = new Manager('mongodb://localhost:27017', [], ['serverApi' => $v1]);

    $command = new MongoDB\Driver\Command(['buildInfo' => 1]);

    try {
    $cursor = $manager->executeCommand('admin', $command);
    } catch(    MongoDB\Driver\Exception $e) {
    echo     $e->getMessage(), "\n";
    exit;
    }

    /* The buildInfo command returns a single result document, so we need to access
    * the first result in the cursor. */
    $buildInfo = $cursor->toArray()[0];

    echo     $buildInfo->version, "\n";

    ?>

    The above example will output:

    4.9.0-alpha7-49-gb968ca0

    Example #2 Declare a strict API version on a manager

    The following example sets the strict flag, which tells the server to reject any command that is not part of the declared API version. This results in an error when running the buildInfo command.

    <?php

    use MongoDB\Driver\Manager;
    use     MongoDB\Driver\ServerApi;

    $v1 = new ServerApi(ServerApi::v1, true);
    $manager = new Manager('mongodb://localhost:27017', [], ['serverApi' => $v1]);

    $command = new MongoDB\Driver\Command(['buildInfo' => 1]);

    try {
    $cursor = $manager->executeCommand('admin', $command);
    } catch(    MongoDB\Driver\Exception $e) {
    echo     $e->getMessage(), "\n";
    exit;
    }

    /* The buildInfo command returns a single result document, so we need to access
    * the first result in the cursor. */
    $buildInfo = $cursor->toArray()[0];

    echo     $buildInfo->version, "\n";

    ?>

    The above example will output:

    Provided apiStrict:true, but the command buildInfo is not in API Version 1

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