is_link on Wamp 2

Case 1 Contents of directory D:/wamp/www/www.khwilki.local/ - using OS command dir

array (size=26)
  0 => string ' Wolumin w stacji D to DE' (length=25)
  1 => string ' Numer seryjny woluminu: 5842-AF54' (length=34)
  2 => string '' (length=0)
  3 => string ' Katalog: D:\wamp\www\www.khwilki.local' (length=39)
  4 => string '' (length=0)
  5 => string '2015-07-26  09:23    <DIR>          .' (length=37)
  6 => string '2015-07-26  09:23    <DIR>          ..' (length=38)
  7 => string '2015-05-23  20:55    <DIR>          _backup' (length=43)
  8 => string '2015-05-23  20:55    <DIR>          _logi' (length=41)
  9 => string '2015-07-26  09:23    <DIR>          fileadmin' (length=45)
  10 => string '2015-07-26  08:39    <SYMLINKD>     typo3 [typo3_src\typo3]' (length=59)
  11 => string '2015-07-26  08:39    <SYMLINKD>     typo3_src [..\typo3_src-6.2.14]' (length=67)
  12 => string '2015-07-28  09:24    <DIR>          typo3conf' (length=45)
  13 => string '2015-07-28  09:27    <DIR>          typo3temp' (length=45)
  14 => string '2015-07-28  08:45    <DIR>          uploads' (length=43)
  15 => string '2015-05-24  10:12             5˙199 .htaccess' (length=45)
  16 => string '2015-04-14  20:03               113 index.html' (length=46)
  17 => string '2015-07-26  08:39    <SYMLINK>      index.php [typo3_src\index.php]' (length=67)
  18 => string '2015-05-23  18:40                19 pi.php' (length=42)
  19 => string '2015-07-28  10:40               710 info.txt' (length=44)
  20 => string '2015-06-06  11:03                40 pl_utf8.txt' (length=47)
  21 => string '2015-06-21  19:48                28 robots.txt' (length=46)
  22 => string '2015-05-15  19:50         3˙845˙957 t3_hkwilki.sql.zip' (length=54)
  23 => string '2015-05-15  19:30        51˙253˙391 www.khwilki.local.zip' (length=57)
  24 => string '               9 plik(˘w)         55˙105˙457 bajt˘w' (length=51)
  25 => string '              10 katalog(˘w)  385˙952˙788˙480 bajt˘w wolnych' (length=60)

Case 2 Contents of directory D:/wamp/www/www.khwilki.local/ - using readdir()

Directory handle: Resource id #4
Entries:
Dir: .
Dir: ..
File: .htaccess
Dir: fileadmin
File: index.html
File: index.php
File: info.txt
File: pi.php
File: pl_utf8.txt
File: robots.txt
File: t3_hkwilki.sql.zip
Dir: typo3
Dir: typo3conf
Dir: typo3temp
Dir: typo3_src
Dir: uploads
File: www.khwilki.local.zip
Dir: _backup
Dir: _logi

Case 3 Contents of directory D:/wamp/www/www.khwilki.local/ - using DirectoryIterator

File: .htaccess
Dir: fileadmin
File: index.html
File: index.php
File: info.txt
File: pi.php
File: pl_utf8.txt
File: robots.txt
File: t3_hkwilki.sql.zip
Dir: typo3
Dir: typo3conf
Dir: typo3temp
Dir: typo3_src
Dir: uploads
File: www.khwilki.local.zip
Dir: _backup
Dir: _logi