posix_isatty
(PHP 4, PHP 5)
posix_isatty — Determine if a file descriptor is an interactive terminal
설명
bool posix_isatty
(
mixed $fd
)
인수
-
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.
반환값
Returns TRUE if fd is an open descriptor connected
to a terminal and FALSE otherwise.