Capture keypresses on Windows

Description

Some tutorials and packages show it is possible to capture and handle keypresses on terminals, but only available on *nix systems

The example below shows a commonly see implementation.

<?php

$stdin = fopen('php://stdin', 'r');
system('stty cbreak -echo');

stream_set_blocking($stdin, false);

while (1) {
    $keypress = fgets($stdin);
    if ($keypress) {
        echo 'Key pressed: ' . $keypress . PHP_EOL;
    }
}

EDIT:
This example captures keys presses in the open terminal, except: shift, alt, control, caps lock, meta and fn

This example above does not work on Windows.
The intention is to capture a single keypress, of course, without typing enter. This would make possible things like terminal games and many command line apps, working for any O.S.

This was discussed in the past here: https://bugs.php.net/bug.php?id=34972

CMB gave some hope this would be implemented, and so, not a bug at all.

首先查看 bugs.php.net/bug.php?id=34972 中的历史讨论，以及 php-src 中现有的终端输入处理。确定适当的 Windows 入口点，以及在受支持的操作系统上捕获单次按键应如何工作。当有一种有文档记录且经过测试的跨平台方式可以读取按键而无需 Enter 时，即视为完成。