Description:
------------
file_get_contents() returns false but is_readable() returns true where file.php is a blank PHP file (0 bytes) with full world writable permissions.

phpinfo() output at http://www.cabalonline.com/bug/php.php

Server API: CGI/FastCGI

Reproduce code:
---------------
<?php
if (!file_get_contents('file.php'))
{
	echo 'file_get_contents: false';
}
else
{
	echo 'file_get_contents: true';
}
?>
<br />
<?php
if (!is_readable('file.php'))
{
	echo 'is_readable: false';
}
else
{
	echo 'is_readable: true';
}
?>

Expected result:
----------------
file_get_contents: true
is_readable: true

Actual result:
--------------
file_get_contents: false
is_readable: true