dio_write
(PHP 4 >= 4.2.0, PHP 5 < 5.1.0)
dio_write — Writes data to fd with optional truncation at length
說明
dio_write(resource
$fd, string $data, int $len = 0): int
dio_write() writes up to len
bytes from data to file fd.
參數
-
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.