Non-blocking on STDIN in PHP CLI

Just a notice, that non blocking STDIN working, now.

Here's what I could come up with. It works fine in Linux, but on Windows, as soon as I hit a key, the input is buffered until enter is pressed. I don't know a way to disable buffering on a stream.

<?php

function non_block_read($fd, &$data) {
    $read = array($fd);
    $write = array();
    $except = array();
    $result = stream_select($read, $write, $except, 0);
    if($result === false) throw new Exception('stream_select failed');
    if($result === 0) return false;
    $data = stream_get_line($fd, 1);
    return true;
}

while(1) {
    $x = "";
    if(non_block_read(STDIN, $x)) {
        echo "Input: " . $x . "\n";
        // handle your input here
    } else {
        echo ".";
        // perform your processing here
    }
}

?>

system('stty cbreak');
while(true){
    if($char = fread(STDIN, 1)) {
        echo chr(8) . mb_strtoupper($char);
    }
}