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
此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。
Prevents echoing of user typed characters.
Returns TRUE if any error occurred, FALSE otherwise.
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.