$pos = strpos($linkOk, "utm_medium");
                                        $tmp = substr($linkOk, $pos);
                                        $pos = strpos($tmp, "=");
                                        $tmp = substr($tmp, $pos);
                                        $tmp = substr($tmp, 1);
                                        for($i=0; $i<strlen($tmp); $i++){
                                            if($tmp[$i]=="&"){
                                                break;
                                            }
                                            $tmpValue .= $tmp[$i];
                                        }
                                        $linkOk = str_replace("utm_medium=" . $tmpValue, "utm_medium=" . $tmpValue . "[[".$hash."]]", $linkOk);