<?$f = file("file.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);foreach ($f as $k => $v) { $u = parse_url(trim($v)); if (!empty($u['host'])) $h[$u['host']] += 1;}arsort($h);foreach ($h as $k => $v) echo $k ." - ". $v ."<br />"; ?>