MongoDB\Driver\CursorInterface::isDead

(mongodb >=1.6.0)

MongoDB\Driver\CursorInterface::isDead — Checks if the cursor may have additional results

説明

abstract public MongoDB\Driver\CursorInterface::isDead ( void ) : bool

Checks whether the cursor may have additional results available to read. A cursor is initially "alive" but may become "dead" for any of the following reasons:

  • Advancing a non-tailable cursor did not return a document
  • The cursor encountered an error
  • The cursor read its last batch to completion
  • The cursor reached its configured limit
This is primarily useful with tailable cursors.

パラメータ

この関数にはパラメータはありません。

返り値

Returns TRUE if additional results are not available, and FALSE otherwise.

エラー / 例外

参考