MongoCursor::key

(PECL mongo >=0.9.0)

MongoCursor::key — Returns the current result's _id, or its index within the result set

说明

public string|int MongoCursor::key ( void )

参数

此函数没有参数。

返回值

The current result's _id as a string. If the result has no _id, its numeric index within the result set will be returned as an integer.

参见