- PHP 手册
- 函数参考
- 文件系统相关扩展
- Direct IO
- Direct IO 函数
dio_write
(PHP 4 >= 4.2.0, PHP 5 < 5.1.0)
dio_write — Writes data to fd with optional truncation at length
说明
dio_write(resource$fd, string $data, int $len = 0): int
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.
参见
- dio_read() - Reads bytes from a file descriptor
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/function.dio-write.php