function DaoBase($conn = NULL) { global $hostname, $dbusername, $dbpassword, $dbname; DaoBase::$dbhost = $hostname; DaoBase::$dbuser = $dbusername; DaoBase::$dbpwd = $dbpassword; DaoBase::$dbinst = $dbname; $this->table_name = ""; if (isset($conn)) { $this->conn = $conn; } else { } }