The ncurses_noecho() function basically disables user input from being echoed to your present cursor location.
Re-enable with the ncurses_echo() function. Echo is enabled by default in a new ncurses session.
(PHP 4 >= 4.0.7, PHP 5 < 5.3.0, PECL ncurses >= 1.0.0)
ncurses_noecho — Switch off keyboard input echo
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
Prevents echoing of user typed characters.
Returns TRUE if any error occurred, FALSE otherwise.