PHP Manual
MongoDB\Driver\ReadPreference
Returns the ReadPreference's "mode" option

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 ( void ) : int

参数

此函数没有参数。

返回值

Returns the ReadPreference's "mode" option.

错误／异常

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

范例

Example #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());

?>

以上例程会输出：

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

参见

» Read Preference reference

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