$dbConn = mysqli_connect($dbHost, $dbUser, $dbPass)
 or die ('MySQL connect failed. ' . mysqli_error($dbConn));
   mysqli_select_db($dbConn, $dbName)
  or die('Cannot select database. ' . mysqli_error($dbConn));

    function dbQuery($sql)
      {
        $result = mysqli_query($dbConn, $sql) or die(mysqli_error($dbConn));

         return $result;
       }

function dbQuery($sql)
  {
       global $dbConn;
       $result = mysqli_query($dbConn, $sql) or die(mysqli_error($dbConn));
       return $result;
   }