通过 php ci 设置快讯

Question

我正在尝试向数据库中插入一个条目。首先，我检查电子邮件 ID 是否已注册。如果是，将显示一条消息，说明电子邮件 ID 已被使用，否则将数据插入数据库。

但是页面刷新后还是继续显示。我希望它随着页面刷新而消失。

    public function register()
    {   

        $this->load->library('form_validation');
        $this->form_validation->set_rules('email','email','required|is_unique[register.email]');
        if($this->form_validation->run() == FALSE){


             ////////////problem is here  ///////////////////////
            $this->load->view('view/login_register');
            $this->session->set_flashdata('message_error','This id is already taken');

        }
        else
        {
           ///$username=$this->input->post('username');
            $email=$this->input->post('email');
            $data= array(

             ////'email'=>$this->input->post('email')
                'email'=>$email,   
          //'password'=>$this->input->post('password'),
                );

            $last_id=$this->model->registeration($data);

            if ($last_id>0) {

                $this->send_email($email);


                $this->session->set_flashdata('message', 'To complete registration, click the link in email we just send you at khadija@precisetech.com.pk');
                redirect('controller/register');
            }


        } 
    if(error_flag == 1){
      return false;
    }else{
      return true;
    }
  }

for your help

Answer 1

我还有别的办法。如下：

在控制器中：

if($this->form_validation->run() == FALSE){


    $data['msg'] = '<div class="alert alert-dismissable alert-danger"><button class="close" data-dismiss="alert" type="button">×</button>This id is already taken.</div>';
    $this->load->view('view/login_register', $data);


}

在视图中这样做：
```
<?php if(isset($msg)){echo $msg ;} ?>
```

通过 php ci 设置快讯

flash message setting through php ci

php

codeigniter-3