posix_isatty
(PHP 4, PHP 5)
posix_isatty — Determine if a file descriptor is an interactive terminal
Description
bool posix_isatty
( int
$fd
)
Determines if the file descriptor fd refers to a valid
terminal type device.
Parameters
-
fd -
The file descriptor.
Return Values
Returns TRUE if fd is an open descriptor connected
to a terminal and FALSE otherwise.
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