(PECL mongo >=1.3.0)
MongoDB::getReadPreference — Get the read preference for this database
Ta funkcja nie posiada parametrów.
This function returns an array describing the read preference. The array contains the values type for the numeric read preference mode, type_string for the name of the read preference mode, and tagsets containing a list of all tag set criteria. If no tag sets were specified, tagsets will not be present in the array.
Przykład #1 MongoDB::getReadPreference() return value example
<?php
$m = new MongoClient();
$db = $m->test;
$db->setReadPreference(MongoClient::RP_SECONDARY, array(
array('dc' => 'east', 'use' => 'reporting'),
array('dc' => 'west'),
array(),
));
var_dump($db->getReadPreference());
Powyższy przykład wyświetli:
array(3) {
["type"]=>
int(2)
["type_string"]=>
string(9) "secondary"
["tagsets"]=>
array(3) {
[0]=>
array(2) {
[0]=>
string(7) "dc:east"
[1]=>
string(13) "use:reporting"
}
[1]=>
array(1) {
[0]=>
string(7) "dc:west"
}
[2]=>
array(0) {
}
}
}