PHP - Manual: MongoGridFSCursor::key
2025-10-31
(PECL mongo >=0.9.0)
MongoGridFSCursor::key — Returns the current result's filename
此函数没有参数。
The current result's _id as a string.
| 版本 | 说明 | 
|---|---|
| 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. | 
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  官方地址:https://www.php.net/manual/en/mongogridfscursor.key.php