public string db_url="http://localhost/";
    IEnumerator SaveAllPlayerPrefs(object[] parms)
        {
            string ourPostData = "{"bone":"42"}";

            Hashtable headers = new Hashtable();
            headers.Add("Content-Type", "application/json");
            headers.Add("Cookie", "Our session cookie");

            byte[] pData = System.Text.Encoding.UTF8.GetBytes(ourPostData);

            WWW webRequest = new WWW(db_url + "SaveAllPlayerPref.php", pData, headers);

            yield return webRequest;
        }

<?php
    $sql_connect = mysql_connect("localhost", "root", "") or die ("no DB Connection");

 mysql_select_db("example") or die ("DB not found");

    $bone = $_POST['bone'];

    mysql_query("INSERT INTO save_game (bone) VALUES ('$bone');");

    mysql_close($sql_connect);
?>