is_link on Wamp 1

<?php
$dir = 'D:/wamp/www/www.khwilki.local/';


echo '<h1>Case 1 Contents of directory ' . $dir . " - using OS command dir</h1>";

echo '<pre>';
$arr = array();
exec('dir "' . $dir . '"', $arr);
var_dump($arr);
echo '</pre>';



clearstatcache();
echo '<h1>Case 2 Contents of directory ' . $dir . " - using readdir()</h1>";
echo '<pre>';
if ($handle = opendir($dir)) {
    echo "Directory handle: $handle\n";
    echo "Entries:\n";

    while (false !== ($entry = readdir($handle))) {

        if (is_link($dir . $entry)) {
            $strTarget = readlink($dir . $entry);
            echo '>>LINK<<: ' . $entry . ' => ' . $strTarget . "\n";
        }
        elseif (is_file($dir . $entry)) {
            echo 'File: ' . $entry . "\n";
        }
        elseif (is_dir($dir . $entry)) {
            echo 'Dir: ' . $entry . "\n";
        }
        else {
            echo "? - $entry\n";
        }
    }
    closedir($handle);
}
echo '</pre>';



clearstatcache();
echo '<h1>Case 3 Contents of directory ' . $dir . " - using DirectoryIterator</h1>";
echo '<pre>';
$iterator = new DirectoryIterator($dir);

foreach ($iterator as $fileinfo) {
    if ($fileinfo->isDot()) continue;

    if ($fileinfo->isLink()) {
        echo '>>LINK<<: ' . $fileinfo->getFilename() . "\n";
    }
    elseif ($fileinfo->isFile()) {
        echo 'File: ' . $fileinfo->getFilename() . "\n";
    }
    elseif ($fileinfo->isDir()) {
        echo 'Dir: ' . $fileinfo->getFilename() . "\n";
    }
    else {
        var_dump($fileinfo->isLink());
    }
}
echo '</pre>';