dio_truncatedio_write
(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5)
dio_write — Writes data to fd with optional truncation at length
说明
int dio_write
( resource
$fd
, string $data
[, int $len = 0
] )
dio_write() writes up to len
bytes from data to file fd.
参数
-
fd -
The file descriptor returned by dio_open().
-
data -
The written data.
-
len -
The length of data to write in bytes. If not specified, the function writes all the data to the specified file.
返回值
Returns the number of bytes written to fd.
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