<?php

include_once '../simple_html_dom.php';
function html_no_comment($url)
{
    $html = file_get_html($url);
    foreach ($html->find('comment') as $e) {
        $e->outertext = '';
    }
    $ret = $html->save();
    $html->clear();
    unset($html);
    return $ret;
}
function find_contains($html, $selector, $keyword, $index = -1)
{
    $ret = array();
    foreach ($html->find($selector) as $e) {
        if (strpos($e->innertext, $keyword) !== false) {
            $ret[] = $e;
        }
    }
    if ($index < 0) {
        return $ret;
    }
    return isset($ret[$index]) ? $ret[$index] : null;
}