MongoGridFSCursor::key

(PECL mongo >=0.9.0)

MongoGridFSCursor::key — Returns the current result's filename

说明

public MongoGridFSCursor::key ( ) : string

参数

此函数没有参数。

返回值

The current result's _id as a string.

更新日志

版本 说明
PECL mongo 1.3.0 The document's _id is returned as a string value, since the key should be unique. Pre-1.3.0, filename was returned.