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)
