为什么ncurses不显示文字？

ncurses_init();

ncurses_addstr(0, 0, "test");
ncurses_refresh();
ncurses_getch();
ncurses_end();

This should be displaying "test" at the top left, but it isn't. Any idea why?

PHP 5.1.6 CentOS 5.5

Got ncurses through yum install ncurses

it recognizes the ncurses functions, so I assume it should be working

UH OH! Looks like someone forgot to read the docs!

ncurses_mvaddstr(0, 0, "test");