(PECL mongo >=1.3.0)
Get the read preference for this database
public array MongoDB::getReadPreference ( void )
Returns:
This function returns an array describing the read preference. The array contains the values type for the string read preference mode (corresponding to the MongoClient constants), and tagsets containing a list of all tag set criteria. If no tag sets were specified, tagsets will not be present in the array.
Changelog:
1.3.3
The return value has changed to be consistent with MongoDB::setReadPreference(). The type value was changed from a number to a string, type_string was removed, and tagsets now expresses tags as key/value pairs instead of colon-delimited strings.
Examples:
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()); ?>
The above example will output:
array(2) { ["type"]=> string(9) "secondary" ["tagsets"]=> array(3) { [0]=> array(2) { ["dc"]=> string(4) "east" ["use"]=> string(9) "reporting" } [1]=> array(1) { ["dc"]=> string(7) "west" } [2]=> array(0) { } } }
See also:
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