Description:
------------
file:// wrapper doesn't work on PHP 4.x.x, but it should according to docs http://php.net/opendir


Reproduce code:
---------------
<?php

file_get_contents('file://C:/autoexec.bat');
file_get_contents('file://C:\autoexec.bat');
file_get_contents('file:///autoexec.bat');

$dh = opendir('file://C:\temp');


Actual result:
--------------
PHP Notice:  file_get_contents(): Unable to find the wrapper "file" - did you forget to enable it when you configured PHP? in c:\test.php on line 3
PHP Warning:  file_get_contents(file://C:/autoexec.bat): failed to open stream: Invalid argument in c:\test.php on line 3
PHP Notice:  file_get_contents(): Unable to find the wrapper "file" - did you forget to enable it when you configured PHP? in c:\test.php on line 4
PHP Warning:  file_get_contents(file://C:\autoexec.bat): failed to open stream: Invalid argument in c:\test.php on line 4
PHP Notice:  file_get_contents(): Unable to find the wrapper "file" - did you forget to enable it when you configured PHP? in c:\test.php on line 5
PHP Warning:  file_get_contents(file:///autoexec.bat): failed to open stream: Invalid argument in c:\test.php on line 5
PHP Notice:  opendir(): Unable to find the wrapper "file" - did you forget to enable it when you configured PHP? in c:\test.php on line 7
PHP Warning:  opendir(file://C:\temp): failed to open dir: Invalid argument in c:\test.php on line 7