<?php
$html = file_get_contents("http://www.bungie.net/stats/reach/globalchallenges.aspx");
#file_put_contents("/tmp/globalchallenges.aspx", $html);
#$html = file_get_contents("/tmp/globalchallenges.aspx");

rss_header();
$pos = strpos($html, "<h5>");
while ($pos !== false) {
    $title = fuckawesomefind($html, "<h5>", "</h5>", $pos);
    $description = fuckawesomefind($html, 'escription">', "</p>", $pos);
    $credits = fuckawesomefind($html, "</span> ", "</p>", $pos);
    rss_item($title, "$description - $credits");
    $pos = @strpos($html, "<h5>", $pos);
}
rss_footer();

function fuckawesomefind($text, $skey, $ekey, &$location = 0) {
    $start_pos = strpos($text, $skey, $location) + strlen($skey);
    $end_pos = strpos($text, $ekey, $start_pos);
    $location = $end_pos;
    return substr($text, $start_pos, $end_pos-$start_pos);
}

function rss_header() {
    print '<?xml version="1.0"?>' . "\n";
    print '<rss version="2.0">' . "\n";
    print '<channel>';
}

function rss_item($title, $description) {
    print "<item\n";
    print "<title>$title</title>\n";
    print "<description>$description\n</description>\n";
    print "</item>\n";
}

function rss_footer() {
    print "</channel>\n";
    print "</rss>\n";
}