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我想在CodeIgniter框架中创建一个函数，以便用户可以单击产品详细信息页面，并查看哪个用户上传了某个产品，并且他们必须能够点击该产品所有者转到他的个人资料页面。链接到codeigniter中的用户配置文件页面
现在，我已经能够在详细信息页面上回应产品所有者的所有者信息。但是，链接到所有者个人资料页面没有任何原因，并且由于我试图使其成为链接，名称不再有回应。
这是我的产品详细信息页面（details.php）这里我想呼应产品的所有者的用户名，并将其链接到他们的个人资料页面foreach循环功能：
<?php include_once ('templates/header.php'); ?>
<div class="container">
<h3>Email van de eigenaar:</h4>
<?php
foreach($userdetail_list as $row)
{
?>
<tr>
<td><?php echo $row['email'];?></td>
</tr>
<?php } ?>
</div>
<div class="container">
<div class="row">
<div class="col-md-4" style="margin-top:24px;">
<img src="<?php echo base_url(); ?>upload/<?php echo $product['product_foto']; ?>" class="img-responsive">
</div>
<div class="col-md-5">
<h1> <div class="product_naam"> <?php echo $product['product_naam']; ?> </div> </h1>
<h3>Over dit cadeau</h3>
<div class="product_beschrijving"><?php echo $product['product_beschrijving']; ?> </div>
</div>
<div class="col-md-3">
<a href="<?php echo base_url() ?>/Cadeauaanvragen"> <button type="button" class="btn btn-default">Cadeau aanvragen</button></a>
<div class="aangeboden_door"> Aangeboden door: <?php
foreach($userdetail_list as $row)
{
?>
<tr>
<td><a href="<?php echo base_url() . 'User/profiel_user?id='.$row['user_id']?>"><?=$row['username']; ?></a></td>
<td><?php echo $row['email'];?></td>
</tr>
<?php } ?>
</div>
</div>
</div>
</div>
<div class="container">
<footer>
<p>© kadokado 2017, Inc.</p>
</footer>
<hr>
</div>
<div class="clearfix"></div>
<?php include_once ('templates/footer.php'); ?>
当我加载视图页面我没有看到用户名和链接到用户配置文件。 这里是我的控制器（user.php的）：
<?php
class User extends CI_Controller
{
public function index()
{
$this->load->view('profile', $data);
}
public function __construct()
{
parent::__construct();
if ($_SESSION['user_logged'] == FALSE) {
$this->session->set_flashdata("error", "Please login first to view this page!! ");
redirect("auth/login");
}
}
public function userdetails($user_id)
{
//load the User_model
$this->load->model('User_model');
//call function getdata in de Product_model
$data['userdata_list'] = $this->User_model->getdata();
//get product details
$data['user'] = $this->User_model->get_user_info($user_id);
//laad view
$data['main_content'] = 'profiel_user';
$this->load->view('profiel_user',$data);
}
public function profile()
{
$this->load->model('User_model');
if ($_SESSION['user_logged'] == FALSE) {
$this->session->set_flashdata("error", "Please login first to view this page!! ");
redirect("auth/login");
}
$this->load->view('profile');
}
}
完整的模型文件（User_model.php）
<?php
class User_model extends CI_Model {
public function getUserInfoByEmail($email)
{
$q = $this->db->get_where('users', array('email' => $email), 1);
if($this->db->affected_rows() > 0){
$row = $q->row();
return $row;
}else{
error_log('no user found getUserInfo('.$email.')');
return false;
}
}
public function getUserInfo($user_id)
{
$q = $this->db->get_where('users', array('user_id' => $user_id), 1);
if($this->db->affected_rows() > 0){
$row = $q->row();
return $row;
}else{
error_log('no user found getUserInfo('.$user_id.')');
return false;
}
}
public function getdata()
{
$this->db->where('user_id', $id);
$this->db->from('users');
$query = $this->db->get();
if($query->num_rows()>0)
{
return $query->result_array();
}
}
}
?>