MongoDB\ChangeStream::next()

Definition

MongoDB\ChangeStream::next()

Advances the change stream and attempts to load the next event.

function next(): void

Note

Advancing the change stream does not guarantee that there will be a current event to access. You should still call MongoDB\ChangeStream::valid() to check for a current event at each step of iteration.

Errors/Exceptions

MongoDB\Driver\Exception\RuntimeException for other errors at the extension level (e.g. connection errors).

See Also

• MongoDB\Client::watch()
• MongoDB\Collection::watch()
• MongoDB\Database::watch()

• Iterator::next()

• Tailable Cursor Iteration

• Change Streams documentation in the MongoDB manual