dio_write

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5, PHP 7)

dio_write — Writes data to fd with optional truncation at length

int dio_write ( resource $fd , string $data [, int $len = 0 ] )

dio_write() writes up to len bytes from data to file fd.

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.

Returns the number of bytes written to fd.