posix_ttyname
posix_ttyname
Determine terminal device name
**posix_ttyname** $file_descriptor
Returns a for the absolute path to the current
terminal device that is open on the file descriptor
.
string``file_descriptor
On success, returns a of the absolute path of the
. On failure, returns false
string``file_descriptor
On invalid integer values
an is raised.
file_descriptor``E_WARNING
posix_isatty``stream_isatty