posix_ttyname
(PHP 4, PHP 5, PHP 7)
posix_ttyname — Determine terminal device name
说明
string posix_ttyname
(
mixed $fd
)
参数
-
fd
-
The file descriptor, which is expected to be either a file
resource or an integer. An integer
will be assumed to be a file descriptor that can be passed directly to
the underlying system call.
In almost all cases, you will want to provide a file resource.
返回值
On success, returns a string of the absolute path of the
fd. On failure, returns FALSE