rewind
(PHP 4, PHP 5)
rewind — Rewind the position of a file pointer
說明
bool rewind
( resource $handle
)
Sets the file position indicator for handle to the beginning of the file stream.
Note: If you have opened the file in append ("a" or "a+") mode, any data you write to the file will always be appended, regardless of the file position.
Return值
如果成功則回傳 TRUE，失敗則回傳 FALSE。