(mongodb >=1.0.0)
MongoDB\Driver\ReadPreference::getMode — Returns the ReadPreference's "mode" option
此函数没有参数。
Returns the ReadPreference's "mode" option.
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)