Codeigniter運行SQL查詢后加載空白頁

Question

出於某種原因，當我運行SQL查詢時，codeigniter不會加載視圖，只會返回空白頁，盡管當我通過phpmyadmin手動檢查時，查詢看起來確實運行良好。

這是我完整的控制器：

<?php
class RegisterPageController extends CI_Controller {

 public function __construct()
   {
        parent::__construct();
        $this->load->model('registerpagemodel');
        $this->load->helper('url');

   }

  public function index()
   {

    $this->load->view('RegisterPageView');

   }

   public function AddUser()
   {
    $Usrname = $this->input->post('UserName');
    $Password = $this->input->post('PWD');
    $Email= $this->input->post('Email');


if ($Usrname == null||$Usrname == ''||$Password == null||$Password == ''||$Email == 
null||$Email =='')
{

    $this->load->view('RegisterPageView');

/*This is a little script that displays an alert box on screen when a field has been   
   left blank.*/
echo '<script type="text/javascript">
    window.onload = function () { alert("Username, Password or Email Has Been Left  Empty, Please Try Again."); }
</script>'; 
      return false;

}

$Check = $this->registerpagemodel->CheckExsistingUser($Usrname);

if ($Check == TRUE){
$this->load->view('RegisterPageView');

/*This is a little script that displays an alert box on screen saying you have been 
   registered.*/
echo '<script type="text/javascript">
    window.onload = function () { alert("Username already Exists, please choose another"); }
</script>';
}
else
{

/*This will call the AddNewUser function from the Model*/
 $this->registerpagemodel->AddNewUser($Usrname, $Password, $Email);
 $this->registerpagemodel->CreateRep();

 $this->load->view('WelcomePageView');

/*This is a little script that displays an alert box on screen saying you have been    
  registered.*/
echo '<script type="text/javascript">
window.onload = function () { alert("You have been registered"); }
</script>'; 
}
   }
}
 ?>

這是完整的模型：

<?php
 class registerpagemodel extends CI_Model {

function __construct()
{
    parent::__construct();
    $this->load->database();
}

function AddNewUser($User, $Pass, $Email)
{
/*This will Hash the password with a Salt (New PHP 5.5 Or Above)*/
$Hash = password_hash($Pass, PASSWORD_DEFAULT);

/*This will put the username and hashed password into an array*/
$UsrArray = array(
'Username'=>$User,
'Password'=>$Hash,
'Email'=>$Email);

/*This will put the data in the array into the table using the active record class*/
$this->db->insert('Users', $UsrArray);
}

/*Checks if the username Currently Exsists*/
 function CheckExsistingUser ($User)
   {

   $this->db->where('Username', $User);

  if ($this->db->count_all_results('Users') > 0){
$temp = TRUE;
    return $temp;
 }
 else
 {
$Pass = FALSE;
    return $Pass;
     }

}

function CreateRep ()
{
    $sql ="INSERT INTO Reputation(Reputation, User_Rep_ID) VALUES (0, (SELECT ID FROM 
    Users ORDER BY ID DESC LIMIT 1))";

$results = $this->db->query($sql);
//$data = $results->result_array();
$results->free_result();

 }

 }
?>

更多詳細信息：所有錯誤檢查均已打開，我沒有收到任何錯誤。

添加我的功能后：

   function CreateRep ()
   {
    $sql ="INSERT INTO Reputation(Reputation, User_Rep_ID) VALUES (0, (SELECT ID FROM   
    Users ORDER BY ID DESC LIMIT 1))";

     $results = $this->db->query($sql);
     //$data = $results->result_array();
     $results->free_result();
    }

呼叫控制器：

$this->registerpagemodel->CreateRep();

這開始發生在我身上，查詢將在我再次檢查PHPMyAdmin時起作用，但是此后視圖將不會加載，這使我完全陷入了困境。 任何幫助深表感謝。

Answer 1

一切正常，伙計，看看您的javascipt代碼！ 您在javascript的字符串中不能有ENTERED行。 用這些替換您的js代碼：

<script type="text/javascript">
    window.onload = function () { alert("Username, Password or Email Has Been Left Empty, Please Try Again."); }
</script>

和

<script type="text/javascript">
    window.onload = function () { alert("Username already Exists, please choose another"); }
</script>

我刪除了新行，但是您可以在js的字符串之間使用"" + \\n(Enter) ""