function checkPage($idPage)
{
$app =& JFactory::getApplication();
$rsseoConfig = $app->getuserState('rsseoConfig');
$db =& JFactory::getDBO();
JTable::addIncludePath(JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_rsseo' . DS . 'tables');
$page =& JTable::getInstance('rsseo_pages', 'Table');
$page->load($idPage);
$parser = rsseoHelper::file_get_html(JURI::root() . $page->PageURL, 0);
$html = rsseoHelper::fopen(JURI::root() . $page->PageURL);
$link = JURI::root() . $page->PageURL;
$title = '';
$description = '';
$keywords = '';
$images = 0;
$images_no_alt = 0;
$images_no_hw = 0;
$links = 0;
preg_match('#<title>(.*?)<\\/title>#', $html, $match);
preg_match_all('#<h([0-9+])(.*?)<\\/h([0-9+])>#is', $html, $matches);
$title = @$match[1];
$headings = count($matches[0]);
while ($parser->parse()) {
if ($parser->iNodeName == 'a' && isset($parser->iNodeAttributes['href'])) {
$links++;
}
if (strtolower($parser->iNodeName) == 'meta' && @$parser->iNodeAttributes['name'] == 'description') {
$description = $parser->iNodeAttributes['content'];
}
if (strtolower($parser->iNodeName) == 'meta' && @$parser->iNodeAttributes['name'] == 'keywords') {
$keywords = $parser->iNodeAttributes['content'];
}
if (empty($title) && strtolower($parser->iNodeName) == 'meta' && @$parser->iNodeAttributes['name'] == 'title') {
$title = $parser->iNodeAttributes['content'];
}
if (strtolower($parser->iNodeName) == 'img') {
$images++;
}
if (strtolower($parser->iNodeName) == 'img' && !isset($parser->iNodeAttributes['alt'])) {
$images_no_alt++;
}
if (strtolower($parser->iNodeName) == 'img' && !isset($parser->iNodeAttributes['width']) && !isset($parser->iNodeAttributes['height'])) {
$images_no_hw++;
}
}
$valid_text = strtolower(strip_tags($html));
$density_keywords = $page->PageKeywordsDensity;
if (!empty($density_keywords)) {
$density_keywords = explode(',', $density_keywords);
array_walk($density_keywords, array('rsseoHelper', 'lowercasearray'));
$density_keywords = array_unique($density_keywords);
$densityparams = array();
foreach ($density_keywords as $keyword) {
if (empty($keyword)) {
continue;
}
$densityparams[$keyword] = rsseoHelper::keywordDensity($valid_text, $keyword);
}
$registry = JRegistry::getInstance('density');
$registry->loadArray($densityparams);
$page->densityparams = $registry->toString();
} else {
$page->densityparams = '';
}
$page->PageTitle = $title;
$page->PageDescription = $description;
$page->PageKeywords = $keywords;
//build the params
$params = array();
//check if url is sef friendly
if (strpos($page->PageURL, ".php?") === FALSE) {
$params['url_sef'] = 1;
} else {
$params['url_sef'] = 0;
}
//check if page title is unique
$db->setQuery("SELECT COUNT(*) cnt FROM #__rsseo_pages WHERE PageTitle = '" . $db->getEscaped($page->PageTitle) . "' AND published = 1 ");
$params['duplicate_title'] = $db->loadResult();
//check title length
$params['title_length'] = strlen($page->PageTitle);
//check if page meta description is unique
$db->setQuery("SELECT COUNT(*) cnt FROM #__rsseo_pages WHERE PageDescription = '" . $db->getEscaped($page->PageDescription) . "' AND published = 1 ");
$params['duplicate_desc'] = $db->loadResult();
//check description length
$params['description_length'] = strlen($page->PageDescription);
//check number of keywords
$keyw = trim($keywords) != '' ? explode(',', $page->PageKeywords) : array();
$params['keywords'] = count($keyw);
$params['headings'] = $headings;
$params['images'] = $images;
$params['images_wo_alt'] = $images_no_alt;
$params['images_wo_hw'] = $images_no_hw;
$params['links'] = $links;
$reg = JRegistry::getInstance('');
$reg->loadArray($params);
$page->params = $reg->toString();
//the raw html
$page->_link = $link;
//the page grade
$grade = 0;
$total = 0;
if ($params['url_sef'] == 1 && $rsseoConfig['crawler.sef']) {
$grade++;
}
if ($params['duplicate_title'] == 1 && $rsseoConfig['crawler.title.duplicate']) {
$grade++;
}
if ($params['title_length'] >= 10 && $params['title_length'] <= 70 && $rsseoConfig['crawler.title.length']) {
$grade++;
}
if ($params['duplicate_desc'] == 1 && $rsseoConfig['crawler.description.duplicate']) {
$grade++;
}
if ($params['description_length'] >= 70 && $params['description_length'] <= 150 && $rsseoConfig['crawler.description.length']) {
$grade++;
}
if ($params['keywords'] <= 10 && $rsseoConfig['crawler.keywords']) {
$grade++;
}
if ($params['headings'] > 0 && $rsseoConfig['crawler.headings']) {
$grade++;
}
if ($params['images'] <= 10 && $rsseoConfig['crawler.images']) {
$grade++;
}
if ($params['images_wo_alt'] == 0 && $rsseoConfig['crawler.images.alt']) {
$grade++;
}
if ($params['images_wo_hw'] == 0 && $rsseoConfig['crawler.images.hw']) {
$grade++;
}
if ($params['links'] <= 100) {
$grade++;
}
if ($rsseoConfig['crawler.sef']) {
$total++;
}
if ($rsseoConfig['crawler.title.duplicate']) {
$total++;
}
if ($rsseoConfig['crawler.title.length']) {
$total++;
}
if ($rsseoConfig['crawler.description.duplicate']) {
$total++;
}
if ($rsseoConfig['crawler.description.length']) {
$total++;
}
if ($rsseoConfig['crawler.keywords']) {
$total++;
}
if ($rsseoConfig['crawler.headings']) {
$total++;
}
if ($rsseoConfig['crawler.images']) {
$total++;
}
if ($rsseoConfig['crawler.images.alt']) {
$total++;
}
if ($rsseoConfig['crawler.images.hw']) {
$total++;
}
if ($rsseoConfig['crawler.intext.links']) {
$total++;
}
$page->PageGrade = $grade * 100 / $total;
return $page;
}
