============== Result Classes ============== .. default-domain:: mongodb .. contents:: On this page :local: :backlinks: none :depth: 1 :class: singlecol MongoDB\\ChangeStream --------------------- .. versionadded:: 1.3 Definition ~~~~~~~~~~ .. phpclass:: MongoDB\\ChangeStream This class extends PHP's :php:`Iterator <manual/en/class.iterator.php>` interface. An instance of this class is returned by :phpmethod:`MongoDB\\Client::watch()`, :phpmethod:`MongoDB\\Database::watch()`, and :phpmethod:`MongoDB\\Collection::watch()`. This class allows for iteration of events in a change stream. It also allows iteration to automatically resume after certain errors, such as a replica set failover. Methods ~~~~~~~ .. toctree:: :titlesonly: /reference/method/MongoDBChangeStream-current /reference/method/MongoDBChangeStream-getCursorId /reference/method/MongoDBChangeStream-getResumeToken /reference/method/MongoDBChangeStream-key /reference/method/MongoDBChangeStream-next /reference/method/MongoDBChangeStream-rewind /reference/method/MongoDBChangeStream-valid ---- MongoDB\\MapReduceResult ------------------------ .. versionadded:: 1.2 Definition ~~~~~~~~~~ .. phpclass:: MongoDB\\MapReduceResult This class extends PHP's :php:`IteratorAggregate <iteratoraggregate>` interface. An instance of this class is returned by :phpmethod:`MongoDB\\Collection::mapReduce()`. This class allows for iteration of map-reduce results irrespective of the output method (e.g. inline, collection). It also provides access to command statistics. Methods ~~~~~~~ .. toctree:: :titlesonly: /reference/method/MongoDBMapReduceResult-getCounts /reference/method/MongoDBMapReduceResult-getExecutionTimeMS /reference/method/MongoDBMapReduceResult-getIterator /reference/method/MongoDBMapReduceResult-getTiming