$allregid = array();
$chattype = 'update';
foreach ($memberarray as $memid) {
    $query1 = "SELECT * FROM groupdetail where memberid='{$memid}' AND groupid='{$groupid}';";
    $result = mysqli_query($conn, $query1) or die(mysql_error());
    if (mysqli_num_rows($result) < 1) {
        $newquery = "INSERT INTO `groupdetail`(memberid,groupid) VALUES ('{$memid}','{$groupid}')";
        $result2 = mysqli_query($conn, $newquery);
    }
    $result = mysqli_query($conn, "SELECT * FROM usertable where userid='{$memid}'") or die(mysql_error());
    if (mysqli_num_rows($result) > 0) {
        while ($row = $result->fetch_assoc()) {
            include_once './GCM.php';
            $regId = $row["gcmid"];
            array_push($allregid, $regId);
            $gcm = new GCM();
            $registatoin_ids = array($regId);
        }
        //end of while
    }
}
$res = $gcm->sendgroupalert($allregid, 'Group Updated!!', $groupname, $groupid, $chattype, $memberid, $adminid, $membername);
if ($result2 == 1) {
    $response["success"] = 1;
    $response["message"] = "Member inserted";
    echo json_encode($response);
} else {
    $response["success"] = 0;
    $response["message"] = "Please try again!";
    echo json_encode($response);
}