(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)
Swoole\Async::write — Write data to a file stream asynchronously.
$filename
, string $content
[, integer $offset
[, callable $callback
]] ) : void
filename
The filename being written.
content
The content writing to the file.
offset
The offset.
callback