<?php

$data = <<<DATA
>A blockquote 
>on multiple lines 
>like this. 
DATA;
$md = new Sundown($data);
$result = $md->toHtml();
$tidy = new tidy();
$tidy->parseString($result, array("show-body-only" => 1));
$tidy->cleanRepair();
echo (string) $tidy;
Example #2
0
#!/usr/bin/php
<?php 
$target_file = "../../README.md";
if ($argc >= 2) {
    $target_file = $argv[1];
}
$md = file_get_contents($target_file);
$sd = new Sundown($md);
echo $sd->to_html();