I want to extract url data just like as facebook. For that I am using php DOMDocument.While retrieving the DOM content i.e while retrieving "title" the DOMDocument is returning 0 elements. Here is my code
    <?php
    header("Content-Type: text/xml");
    echo '<?xml version="1.0" encoding="UTF-8" ?>';    
    //$url = $_REQUEST["url"];
    $url = "http://business.tutsplus.com/articles/how-to-set-up-your-first-magento-store--fsw-43137";
    $ch = curl_init();
    curl_setopt($ch,CURLOPT_URL,$url);
    curl_setopt($ch,CURLOPT_HEADER,0);
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
    curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
    curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
    $data = curl_exec($ch);
    curl_close($ch);
    $dom = new DOMDocument();
    @$dom->loadHTML($data);
    $title = $dom->getElementsByTagName("title");
    //$title = $dom->find("title");
    echo "<urlData>";
        echo "<title>";
            echo $title->length;
        echo "</title>";
    echo "</urlData>";
?>
Here $title->length is returning 0 elements. What is the problem?
 
    