dtu11716 2018-03-07 23:30
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代码点火器不显示我的数据（但没有显示错误）

EDIT : Does not work on external hosting AND on localhost… So I must be doing something wrong.

I am working with Code Igniter and I have a view. My view page shows no error, but doesn't show the data I requested either. Everythings fine with my config and database I guess... Any idea ? Am I doing anything wrong here? I am using latest version of mamp on mac 4.4.1 and latest version of code igniter 3.1.7.

Thanks guys in advance for your help ;)

View

    <?php
defined('BASEPATH') OR exit('No direct script access allowed');
?><!DOCTYPE html>
<html lang="en">
<head>
    <body>
<div>

         <p> <?php

        echo 'Trying to display:' . $data . ' yes?';

        ?> </p>


    </div>
</body>
</html>

Model 

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Welcome_model extends CI_Model {

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

    function get_secret($id)
    { 
            $this->db->where('id', $id);
            $this->db->select('secret');
            $query = $this->db->get('tch_api');

            if ($query->num_rows==1) {
                foreach ($query->result() as $row) {
//  tried with this line too : $secret = $row->secret; and without the following one same result 
                    $data[] = $row->secret;
                }
                return $data;
            }

    }
}

Controller 

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {

    public function index()
    {

        $this->load->model('welcome_model');

        $secret = $this->welcome_model->get_secret(1);
        $data = array(
            'data' => $secret
        );
        $this->load->view('welcome_message', $data);

    }
}
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4条回答 默认 最新

  • dr200166 2018-03-08 17:47
    关注

    Did you try with isset? Please change the view like:

        <?php
defined('BASEPATH') OR exit('No direct script access allowed');
?><!DOCTYPE html>
<html lang="en">
<head>
    <body>
<div>

         <p> <?php
              if (isset($data))
               { echo 'Trying to display:' . $data . ' yes?';} else { echo 'No data found' ;} ?> </p>


    </div>
</body>
</html>

    UPDATE

    Assuming from your above code that you want to get the data of Id 1 from table and show it in your view.

    Please do the following changes and try again.

    Model

    <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Welcome_model extends CI_Model {

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

    function get_secret($id)
    { 
            $this->db->where('id', $id);
            $this->db->select('secret');
            $query = $this->db->get('tch_api');
         return $query->result();

    }
}

    ?>

    Controller

    <?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {

public function __construct()
    {
        parent::__construct();
        $this->load->model('welcome_model','wl');
    }


    public function index()
    {

        $data['secret'] = $this->wl->get_secret(1);
        $this->load->view('welcome_message', $data);

    }
}
?>

    View

    <!DOCTYPE html>
<html lang="en">
<head>
<title>Data Fetching</title>
</head>
    <body>
<div>

         <p><?php
         //testing 1
         if(isset($data)){var_dump($data);}

         //testing 2
              if (isset($data))
               { echo 'Trying to display:' . $data . ' yes?';} else { echo 'No data found' ;} ?> </p>


    </div>
</body>
</html>

    Please try this and post your result here..

    Please mark it as Answer if the issue has been Fixed.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
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