$re = '/<span class=\'pages\'>(.*)<\/span>/';
$str = '<span class=\'pages\'>1 de 8</span><span class=\'current\'>1</span><a class="page larger" href="http://megafilmeshd.net/category/lancamentos/page/2/">2</a><a class="page larger" href="http://megafilmeshd.net/category/lancamentos/page/3/">3</a><span class=\'extend\'>...</span>';
preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php