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    MongoDB\Driver\ReadPreference::getMode

    (mongodb >=1.0.0)

    MongoDB\Driver\ReadPreference::getMode — Returns the ReadPreference's "mode" option

    说明

    final public MongoDB\Driver\ReadPreference::getMode(): int

    参数

    此函数没有参数。

    返回值

    Returns the ReadPreference's "mode" option.

    错误／异常

    示例

    示例 #1 MongoDB\Driver\ReadPreference::getMode() example

    <?php

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

    $rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_PRIMARY_PREFERRED);
    var_dump($rp->getMode());

    $rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_SECONDARY);
    var_dump($rp->getMode());

    $rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_SECONDARY_PREFERRED);
    var_dump($rp->getMode());

    $rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_NEAREST);
    var_dump($rp->getMode());

    ?>

    以上示例会输出：

     
int(1)
int(5)
int(2)
int(6)
int(10)

    参见

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