Still don't working with
PHP 5.2.10-pl0-gentoo (cli)

Still does not work with PHP 5.3.0

Using the following as an alternative:

$current_choice = trim(`bash -c "read -s -t 1 -n 1 ANS; echo \\\$ANS"`);

It times out after 1 second but I would prefer less as I want a quicker refresh!

Still isn't working on PHP 5.3.9. 

[an0nym@localhost ~]$ php -v
PHP 5.3.9 (cli) (built: Jan 11 2012 17:59:59) 
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies
[an0nym@localhost ~]$ cat test.php 
<?php
var_dump(stream_set_timeout(STDIN, 5));
[an0nym@localhost ~]$ php test.php 
bool(false)
[an0nym@localhost ~]$ 

Workaround.

[an0nym@localhost ~]$ cat input.php 
<?php
for ($i = 0;; ++$i)
{
  printf("%d\n", $i);
  sleep($i);
}
[an0nym@localhost ~]$ cat output.php 
<?php
stream_set_blocking(STDIN, 0);
$rss = array(STDIN);
$wss = $ess = null;
while (stream_select($rss, $wss, $ess, $argv[1]))
{
  printf("%f\n", microtime(true));
  echo stream_get_contents(STDIN);
}
printf("%f\n", microtime(true));
[an0nym@localhost ~]$ time php input.php | php output.php 5
1327087817.988219
0
1
1327087818.988345
2
1327087820.988437
3
1327087823.988534
4
1327087827.988655
5
1327087832.988771
6
1327087837.993888

real	0m21.023s
user	0m0.017s
sys	0m0.020s
[an0nym@localhost ~]$

Bug exists in PHP 5.4.6 also.

Basically a duplicate of: https://bugs.php.net/bug.php?id=34972