- file_get_contents: documentation ( source)
- preg_match: documentation ( source)
<?php
$site = file_get_contents("https://btc-e.com/exchange/ltc_btc");
preg_match("'Last Price: <strong>(.*?)</strong></div>
<div class=/'orderStats/'>Low:'si", $site, $matches);
echo $matches[1]; // 1234
?>