(PECL eio >= 0.0.1dev)
eio_fchown — Change file ownership
eio_fchown() changes ownership of the file specified by fd file descriptor.
The file descriptor.
User ID. Is ignored when equal to -1.
Group ID. Is ignored when equal to -1.
The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. If NULL passed, pri internally is set to EIO_PRI_DEFAULT.
callback function is called when the request is done. It should match the following prototype:
void callback($data, $result);
Arbitrary variable passed to callback.