CrowlEher

crowleher.php

<?php
    $url = urldecode($_GET['url']);
    $original_file = file_get_contents($url);
    $stripped_file = strip_tags($original_file, "<a>");
    preg_match_all("/<a(?:[^>]*)href=\"([^\"]*)\"(?:[^>]*)>(?:[^<]*)<\/a>/is", $stripped_file, $matches);

    echo '<ul>';
    foreach($matches[1] as $link) {
        echo '<li><a href="?url=' . urlencode($link) . '">'.$link.'</a></li>';
    }
    echo '</ul>';