posix_ttyname
(PHP 3 >= 3.0.13, PHP 4, PHP 5)
posix_ttyname -- Determine terminal device name
Description
string
posix_ttyname ( int fd )
Returns a string for the absolute path to the current
terminal device that is open on the file descriptor
fd.
Return Values
On success, returns a string of the absolute path of the
fd. On failure, returns FALSE
