MongoCursorInterface::setReadPreference

(PECL mongo >=1.6.0)

MongoCursorInterface::setReadPreference — Set the read preference for this query

Beschreibung

abstract public MongoCursorInterface MongoCursorInterface::setReadPreference ( string $read_preference [, array $tags ] )

Parameter-Liste

read_preference: The read preference mode: MongoClient::RP_PRIMARY, MongoClient::RP_PRIMARY_PREFERRED, MongoClient::RP_SECONDARY, MongoClient::RP_SECONDARY_PREFERRED, or MongoClient::RP_NEAREST.
tags: An array of zero or more tag sets, where each tag set is itself an array of criteria used to match tags on replica set members.

Rückgabewerte

Returns this cursor.

Fehler/Exceptions

Emits E_WARNING if either parameter is invalid, or if one or more tag sets are provided with the MongoClient::RP_PRIMARY read preference mode.

Siehe auch

The read preferences documentation.
MongoCursorInterface::getReadPreference() - Get the read preference for this query