ftruncate
(PHP 4, PHP 5)
ftruncate — Truncates a file to a given length
說明
bool ftruncate
( resource $handle
, int $size
)
Takes the filepointer, handle , and truncates the file to length, size .
參數
- handle
-
The file pointer.
Note: The handle must be open for writing.
- size
-
The size to truncate to.
Note: If size is larger than the file it is extended with null bytes.
If size is smaller than the file the extra data will be lost.
Return值
如果成功則回傳 TRUE，失敗則回傳 FALSE。
更新日誌
| 版本 | 說明 |
|---|---|
| PHP 4.3.3 | Prior to this release ftruncate() returned an integer value of 1 on success, instead of boolean TRUE. |
註釋
Note: The file pointer is not changed.