Description:
------------
If you use a relative path to a file from Windows command line, PHP interprets the supplied location as a root.

The test script below requires a Windows setup with 2 drives (C and D). The script is a batch script that creates the test script and cleans up after itself.

Whilst this is similar in some aspects to previously reported bugs related to realpath(), the issue is that the constants __FILE__ and __DIR__ are correct, thus making them useless.

OOI, using the absolute path for the PHP script (C:\PHP56\PHP D:\ReaL\PaTH\BuG\TeSTBuG.php), produces the correct results.



Test script:
---------------
@ECHO OFF
REM Make directories for testing.
MD C:\Test\Real\PaTH\BuG
MD D:\ReaL\PaTH\BuG

REM Make test PHP script.
ECHO ^<?php > D:\ReaL\PaTH\BuG\TeSTBuG.php
ECHO var_export([PHP_VERSION, __FILE__, __DIR__, getcwd(), realpath(__FILE__), realpath(__DIR__), realpath(getcwd()), $argv]);>> D:\ReaL\PaTH\BuG\TeSTBuG.php

REM Make sure drives are in their directories.
CD /D D:\ReaL\PaTH\BuG
CD /D C:\Test\Real\PaTH\BuG

REM Call PHP using relative paths.
C:\PHP56\PHP D:TeSTBuG.php

REM Clean-up
DEL D:\ReaL\PaTH\BuG\TeSTBuG.php
CD /D D:\
CD /D C:\
RD C:\Test\Real\PaTH\BuG
RD D:\ReaL\PaTH\BuG


Expected result:
----------------
array (
  0 => '5.6.20',
  1 => 'D:\\ReaL\\PaTH\\BuG\\TeSTBuG.php',
  2 => 'D:\\ReaL\\PaTH\\BuG',
  3 => 'C:\\Test\\Real\\PaTH\\BuG',
  4 => D:\\ReaL\\PaTH\\BuG\\TeSTBuG.php,
  5 => 'D:\\ReaL\\PaTH\\BuG',
  6 => 'C:\\Test\\Real\\PaTH\\BuG',
  7 =>
  array (
    0 => 'D:TeSTBuG.php',
  ),
)

Actual result:
--------------
array (
  0 => '5.6.20',
  1 => 'D:\\TeSTBuG.php',
  2 => 'D:\\',
  3 => 'C:\\Test\\Real\\PaTH\\BuG',
  4 => false,
  5 => 'D:\\',
  6 => 'C:\\Test\\Real\\PaTH\\BuG',
  7 =>
  array (
    0 => 'D:TeSTBuG.php',
  ),
)