/**
  * Static method for creating PDOWrapper object with MYSQL connection
  *
  * @param   string  $host           Mysql host
  * @param   string  $dbName         Mysql database name
  * @param   string  $username       Mysql user name
  * @param   string  $password       Mysql password
  * @param   string  $charset        Connection charset
  * @return PDOWrapper
  */
 public static function openMysql($host, $dbName, $username, $password, $charset = "")
 {
     $wrapper = new PDOWrapper("mysql:host={$host};dbname={$dbName}", $username, $password);
     if ($charset && !$wrapper->getLastError()) {
         $wrapper->query("SET NAMES ?", array($charset));
     }
     return $wrapper;
 }