note 115327 added to domxpath.query

Help me! code: <meta http-equiv="content-Type" content="text/html ; charset=UTF-8"> <?php set_time_limit(0); $url = 'http://xskt.com.vn/' ; $dom= New DOMDocument('1.0','UTF-8'); $dom->loadHTMLFile(trim($url)); $xpath = new DOMXPath($dom); $query='.//*[@id="rmb"]/table[1]/tbody/tr[2]/td[1]'; $data['dacbiet'] = $xpath->query($query)->item(0)->nodeValue; print_r($data); die; ?> Result: Notice: Trying to get property of non-object in C:\xampp\htdocs\db\index.php on line 9 Array ( [dacbiet] => ) ---- Server IP: 72.52.91.14 Probable Submitter: 117.7.174.208 ---- Manual Page -- http://php.net/manual/en/domxpath.query.php Edit -- https://master.php.net/note/edit/115327 Del: integrated -- https://master.php.net/note/delete/115327/integrated Del: useless -- https://master.php.net/note/delete/115327/useless Del: bad code -- https://master.php.net/note/delete/115327/bad+code Del: spam -- https://master.php.net/note/delete/115327/spam Del: non-english -- https://master.php.net/note/delete/115327/non-english Del: in docs -- https://master.php.net/note/delete/115327/in+docs Del: other reasons-- https://master.php.net/note/delete/115327 Reject -- https://master.php.net/note/reject/115327 Search -- https://master.php.net/manage/user-notes.php