MongoDB\Driver\ReadPreference::bsonSerialize

    (mongodb >=1.2.0)

    MongoDB\Driver\ReadPreference::bsonSerialize — Returns an object for BSON serialization

    Description

    finalpublicMongoDB\Driver\ReadPreference::bsonSerialize(): stdClass

    Liste de paramètres

    Cette fonction ne contient aucun paramètre.

    Valeurs de retour

    Returns an object for serializing the ReadPreference as BSON.

    Erreurs / Exceptions

    • Lance une exception MongoDB\Driver\InvalidArgumentException lors d'une erreur survenue pendant l'analyse d'un argument.

    Exemples

    Exemple #1 MongoDB\Driver\ReadPreference::bsonSerialize() with primary read preference

    <?php

    $rp     = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_PRIMARY);
    var_dump($rp->bsonSerialize());

    echo     "\n", MongoDB\BSON\toJSON(MongoDB\BSON\fromPHP($rp));

    ?>

    Résultat de l'exemple ci-dessus est similaire à :

    object(stdClass)#2 (1) { ["mode"]=> string(7) "primary" } { "mode" : "primary" }

    Exemple #2 MongoDB\Driver\ReadPreference::bsonSerialize() with secondary read preference and tag sets

    <?php

    $rp     = new MongoDB\Driver\ReadPreference(
    MongoDB\Driver\ReadPreference::RP_SECONDARY,
    [
    [    'dc' => 'ny'],
    [    'dc' => 'sf', 'use' => 'reporting'],
    []
    ]
    );
    var_dump($rp->bsonSerialize());

    echo     "\n", MongoDB\BSON\toJSON(MongoDB\BSON\fromPHP($rp));

    ?>

    Résultat de l'exemple ci-dessus est similaire à :

    object(stdClass)#2 (2) { ["mode"]=> string(9) "secondary" ["tags"]=> array(3) { [0]=> object(stdClass)#1 (1) { ["dc"]=> string(2) "ny" } [1]=> object(stdClass)#5 (2) { ["dc"]=> string(2) "sf" ["use"]=> string(9) "reporting" } [2]=> object(stdClass)#4 (0) { } } } { "mode" : "secondary", "tags" : [ { "dc" : "ny" }, { "dc" : "sf", "use" : "reporting" }, { } ] }

    Exemple #3 MongoDB\Driver\ReadPreference::bsonSerialize() with secondary read preference and max staleness

    <?php

    $rp     = new MongoDB\Driver\ReadPreference(
    MongoDB\Driver\ReadPreference::RP_SECONDARY,
    null,
    [    'maxStalenessSeconds' => 120]
    );
    var_dump($rp->bsonSerialize());

    echo     "\n", MongoDB\BSON\toJSON(MongoDB\BSON\fromPHP($rp));

    ?>

    Résultat de l'exemple ci-dessus est similaire à :

    object(stdClass)#2 (2) { ["mode"]=> string(9) "secondary" ["maxStalenessSeconds"]=> int(120) } { "mode" : "secondary", "maxStalenessSeconds" : 120 }

    Voir aussi

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