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$option = JRequest::getCmd('option');
$view = JRequest::getCmd('view');
if ($option=="com_content" && $view=="article") {
    $ids = explode(':',JRequest::getString('id'));
    $article_id = $ids[0];
    $article =& JTable::getInstance("content");
    $article->load($article_id);
    echo $article->get("title");
}

article_id = JRequest::getString('id')

$article =& JTable::getInstance("content");

public static function getInstance($type, $prefix = 'JTable', $config = array())
{
        // Sanitize and prepare the table class name.
        $type = preg_replace('/[^A-Z0-9_\.-]/i', '', $type);
        $tableClass = $prefix.ucfirst($type);
 
        // Only try to load the class if it doesn't already exist.
        if (!class_exists($tableClass)) {
                // Search for the class file in the JTable include paths.
                jimport('joomla.filesystem.path');
                if ($path = JPath::find(JTable::addIncludePath(), strtolower($type).'.php')) {
                        // Import the class file.
                        require_once $path;
 
                        // If we were unable to load the proper class, raise a warning and return false.
                        if (!class_exists($tableClass)) {
                                JError::raiseWarning(0, 'Table class ' . $tableClass . ' not found in file.');
                                return false;
                        }
                } else {
                        // If we were unable to find the class file in the JTable include paths, raise a warning and return false.
                        JError::raiseWarning(0, 'Table ' . $type . ' not supported. File not found.');
                        return false;
                }
        }
 
        // If a database object was passed in the configuration array use it, otherwise get the global one from JFactory.
        if (array_key_exists('dbo', $config)) {
                $db = &$config['dbo'];
        } else {
                $db = & JFactory::getDbo();
        }
 
        // Instantiate a new table class and return it.
        return new $tableClass($db);
}

PHP Fatal error:  Call to a member function get() on a non-object in C:\xampp\htdocs\Joomla17\components\com_content\views\article\view.html.php