Error JFactory::getDBO(); - Joomla! Forum - community, help and support

hi,

i error message while executing function don't know error can me. ???

warning: mysql_num_rows(): 58 not valid mysql result resource in /applications/mamp/htdocs/libraries/joomla/database/database/mysql.php on line 337

i

code: select all

$query = "select * jos_users id = {$user}";
$db =& jfactory::getdbo();
$db->setquery($query);
   if ($db->geterrornum > 0){
      echo "error: ";
      echo $db->geterrormsg();
      echo '<br>';
   }
   $aantal = $db->getnumrows();
   if ($aantal < 1){
   echo "there no users<br>";
   }
else{
   echo "total users: {$aantal}";
}


change $db->geterrornum $db->geterrornum()

it's function, not property.