[英]Keep getting Message: Undefined variable using codeigniter
控制器:
$username = $this->input->post('username');
$password = $this->input->post('password');
$this->load->model('Login_model');
if($this->Login_model->login_user($username, $password)) {
$data['user_data'] = $this->Login_model->login_user($username, $password);
echo $user_data->fname;
//$user_array = array(
//'fname' => $user_data->fname,
//'level' => $user_data->level,
//'logged_in' => true
//);
//$this->session->set_userdata($user_array);
redirect ('home');
} else {
$this->load->view('inc/login_header');
$this->load->view('login');
$this->load->view('inc/login_footer');
}
模型:
public function login_user($username, $password) //This function returns an array
{
$this->db->where('username', $username);
$this->db->where('password', $password);
$query = $this->db->get('logins'); //create query
if($query->num_rows() == 1) {
//return $query->result_array();
return $query->row();
} else {
return false;
}
}
我一直收到此錯誤:消息:未定義的變量:user_data文件名:controllers / Login.php
該錯誤引用了以下行:echo $ user_data-> fname;
在我看來,我試圖根據模型行中的數據創建一個名為user_data的數組。
在此先感謝您的幫助。
用這個 :
$data['user_data']->fname;
代替這個:
echo $user_data->fname;
或像這樣:
$user_data = $this->Login_model->login_user($username, $password);
echo $user_data->fname;
應該是這樣的:
if($this->Login_model->login_user($username, $password)) {
$data['user_data'] = $this->Login_model->login_user($username, $password);
echo $data['user_data']->fname;
//$user_array = array(
//'fname' => $user_data->fname,
//'level' => $user_data->level,
//'logged_in' => true
//);
//$this->session->set_userdata($user_array);
redirect ('home');
}
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