Php Codeigniter每3次识别一次用户注册转介

我目前正在开发一个使用Codeigniter框架的传销网站

我现在正在办理注册手续。我可以向推荐用户成功注册

问题是每3次使用我的推荐用户名/id注册，我需要运行另一个查询，因为在第一次和第二次推荐中，我获得了200。在第三个用户将参考我将只赚100

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我如何在Codeigniter中做到这一点？有人这样做吗？请帮帮我让我解释一下 因此，假设您为每个注册创建一个post，post将转到一个类名注册和一个register方法，并且引用id作为会话（refID）运行。此外，您有一个注册模型，这是您应该做的：

class registration extends CI_Controller{
    function __construct(){
        parent::__construct();
        $this->load->model('registration_model');
    }

    //ensue to check for the existence of the refID session before processing
    function register(){

        if($_POST){
            //first run form validation
            //you should have auto loaded the form_validation library
            //and created a rules function that carries the form rules
            $rules = $this->rules();
            $this->form_validation->set_rules($rules);

            if($this->form_validation->run() == FALSE){
                //load view here
            }else{
                //first, get post data
                //then get the number of registration done by user using the refID
                //if registration is greater than 2, set earnings to 100
                //set earnings to 200
                //then proceed to insert registration and do something else



                //get post data, assumed post data
                $name = $this->input->post('name');
                $email = $this->input->post('email');

                //get number of registrations
                $numOfRegs = $this->registration_model->getRegByRefID();

                //set the earnings from the number of registrations
                $earning = $numOfRegs < 3 ? 200 : 100;
                //please note that the for $numOfRegs = 4, $earnings will be 100, as this was not specified in the question

                //at this point, you have set the earnings, you can proceed to do whatever you wish to do, perhaps insert the records

                //please note that this code block just explains what you can likely do after setting the earnings
                $insert = array(
                    "name" => $name,
                    "email" => $email,
                    "earning" => $earning
                );
                $this->registration_model->insert($array);
                // then do anything else
            }
        }else{
            //load view here
        }
    }
}

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我希望这能解释你真正想要什么，并对你有所帮助。如果您发现任何困难，请发表评论，让我们来解决。

Codeigniter与您的问题无关。您不能根据转介ID计算注册数，例如，从转介ID为“XXXXXX”的注册中选择计数（*）；如果这个数字是2，那么你知道这是第三次注册了吗？谢谢你的回答兄弟：）谢谢@sunday这真的帮助了我：）这正是我需要的。再次谢谢你我可以再请你帮忙吗？我会发布新问题好的，请发布，我会相应地提供帮助

class Registration_model extends CI_Model{

    function __construct(){
        parent::__construct();
    }

    function getRegByRefID(){
        $refID = $this->session->refID;
        return $this->db->get_where('mydb', array("refID" => $refID))->num_rows();
    }


}