当它不应该出现在我的 codeigniter 脚本中时出现了错误。我假设我的代码流很简单，但我无法弄清楚。
这是页面：
http://77.96.119.180/beer/user/activate/
您可以看到底部出现的错误，这不应该出现
“那个用户名不存在。”
这是我的 CodeIgniter 类代码：
public function activate($code = '', $username = '')
{
$go = 0;
$form = '';
// This function lets a user activate their account with the code or link they recieved in an email
if($code == '' || $username == '' || isset($_POST[''])){
$this->load->library('form_validation');
$this->load->helper('form');
$this->form_validation->set_rules('code', 'Activation Code', 'trim|required|xss_clean|integer');
$this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean');
if ($this->form_validation->run() == FALSE){
// No code, so display a box for them to enter it manually
$form .= validation_errors();
$form .= form_open_multipart('user/activate', array('class' => 'formee'));
$form .= form_label('Enter your activation code below and click \'Activate\' to start using your account. If you need a hand please contact live chat.', 'activation_code');
$form .= form_input(array('name' => 'code'));
$form .= form_label('And enter your username', 'username');
$form .= form_input(array('name' => 'username'));
$data = array(
'name' => 'submit',
'value' => 'Activate',
'class' => 'right',
'style' => 'margin-top:10px;',
);
$form .= form_submit($data);
$form .= form_close();
}else{
$go = 1;
// Put POST variables into variables
$code = $this->input->post('code');
$username = $this->input->post('username');
}
}else{
// Code recieved through the GET or POST variable XSS clean it and activate the account
$go = 1;
// Put GET variables into variables
$code = $this->uri->segment(3);
$username = $this->uri->segment(4);
}
if($go = 1){
// Activate!
// Check if user exists
$query = $this->db->get_where('users', array('username' => $username, 'confirmation' => $code), 1);
if ($query->num_rows() > 0){
// Username exsists, activate the account
$data = array(
'is_validated' => 1
);
$this->db->where('username', $username);
$this->db->update('users', $data);
$form .= '<div class="formee-msg-success">Acount activated, <a href="#">click here</a> to login.</div>';
}else{
// Username doesn't exsist or code doesn't match, find out which
$form .= '<div class="formee-msg-error">That username doesn\'t exsist.</div>';
}
}
$data = array(
'title' => $this->lang->line('activate_title'),
'links' => $this->gen_login->generate_links(),
'content' => $form
);
$this->parser->parse('beer_template', $data);
}