(mongodb >=1.7.0)
MongoDB\Driver\ReadPreference::getModeString — 以字符串形式返回 ReadPreference 的“mode”选项
此函数没有参数。
以字符串形式返回 ReadPreference 的“mode”选项。
示例 #1 MongoDB\Driver\ReadPreference::getModeString() 示例
<?php
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::PRIMARY);
var_dump($rp->getModeString());
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::PRIMARY_PREFERRED);
var_dump($rp->getModeString());
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::SECONDARY);
var_dump($rp->getModeString());
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::SECONDARY_PREFERRED);
var_dump($rp->getModeString());
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::NEAREST);
var_dump($rp->getModeString());
?>
以上示例将输出
string(7) "primary" string(16) "primaryPreferred" string(9) "secondary" string(18) "secondaryPreferred" string(7) "nearest"