php - 选择查询未在 codeigniter 中执行？

Question

我正在尝试在 codeigniter 中执行选择查询，并且我创建了如下相同的函数:

public function validate(){
    $username = $this->security->xss_clean($this->input->post('username'));
    $password = $this->security->xss_clean($this->input->post('password1'));
    $type = $this->security->xss_clean($this->input->post('utype'));
    $password=md5($password);

    $this->db->select('*');
    $this->db->from('ci_users');
    $this->db->where('email', $username);
    $this->db->where('password', $password);
    $this->db->where('utype', $type);

    // Run the query
    $query = $this->db->get();

    // Let's check if there are any results
    if($query->num_rows == 1)
    {
        // If there is a user, then create session data
        $row = $query->row();
        $data = array(
                'userid' => $row->id,
                'fname' => $row->fname,
                'lname' => $row->lname,             
                'email' => $row->email,
                'utype' =>$row->utype,
                'phone' =>$row->mobile,
                'city' =>$row->city,
                'state' =>$row->state,
                'country' =>$row->country,
                'validated' => true
                );
        $this->session->set_userdata($data);
       echo '<pre>';print_r($data); exit();
        //return true;
    }
    else
    {
        echo "OPPS some error";
        //return false;
    }
}

它总是显示错误，即使我输入了正确的用户名和密码。为什么选择查询不运行？我做错了什么。请帮助我。

Answer 1

你习惯了:

if($query->num_rows == 1)

更正如下:

if($query->num_rows() == 1)