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    MongoDB\Driver\ReadConcern::__construct

    (mongodb >=1.0.0)

    MongoDB\Driver\ReadConcern::__construct — Create a new ReadConcern

    Descrizione

    final public MongoDB\Driver\ReadConcern::__construct(?string $level = null)

    Constructs a new MongoDB\Driver\ReadConcern, which is an immutable value object.

    Elenco dei parametri

    level

    The » read concern level. You may use, but are not limited to, one of the class constants.

    Errori/Eccezioni

    Esempi

    Example #1 MongoDB\Driver\ReadConcern::__construct() example

    <?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);

    ?>
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