谁能告诉我什么是错误在我的代码(更新查询)

我正在为用户配置文件信息创建一个更新页面，但似乎它不起作用意味着它不更新用户表，只是密码更新了，其他任何东西都不会改变，任何人都可以帮助我?????

<标题> account_setting.php h1> div class="answers">

首先检查您的所有post数据值在这里，然后尝试

if(strlen($fname) <= 3 || strlen($lname) <=4)
    {
        $errorMSG = "dhow msg ";
    }
 else {
     $edit_query = mysql_query("UPDATE user SET first_name= '$fname', last_name= '$lname', user_name = '$username', email_address = '$email', specialization= '$spec', governorate = '$governorate', district = '$district', village = '$village', interest = '$aboutme' WHERE user_id = '$userid'") or die(mysql_error());
    if ($edit_query) {
       $errorMSG = "Update successfuly";
    }
  }