其显示变量未定义

Question

这是我的控制器页面

class Cart extends CI_Controller{ 

公共函数索引(( {

$getALlCat  = $this->Product_model-> getAllCategory();
$data = array();
//Retrieve cart Data
$data['cartItems']  = $this->cart->contents();

//print_r($data);exit;
//$this->load->view('cart/index' ,$data);
///$this->load->helper('url');
/ /$this->load->view('cart/header',['getAllCate'=>$getALlCat], $data);    //including header and 
footer   
$this->load->view('cart/cartbody',['getAllCate'=>$getALlCat], $data);
$this->load->view('common/footer');    //including header and footer
}
}

**This is View page**

<tbody>
<?php if($this->cart->total_items() > 0){ foreach($cartItems as $item){    ?>
<tr>
<td><img src="<?php echo $item['product_image']; ?>" width="50"/></td>
<td><?php echo $item['product_name']; ?></td>
<td><?php echo '$'.$item["product_price"].' USD'; ?></td>
<td><input type="number" class="form-control text-center"></td>
<td><?php echo '$'.$item["subtotal"].' USD'; ?></td>
<td>Are you sue</td>
</tr>
<?php } }else{ ?>
<td colspan="6"><p>Your cart is empty.....</p></td>
<?php } ?>
</tbody>



**Error Showing like this**
A PHP Error was encountered
Severity: Notice

消息：未定义的变量：购物车项

文件名：购物车/车体.php

行号：217

回溯：

文件： C：\xampp\htdocs\shop\application\views\cart\cartbody.php 行： 217 功能：_error_handler

文件： C：\xampp\htdocs\shop\application\controllers\Cart.php 行： 33 功能：查看

文件： C：\xampp\htdocs\shop\index.php 行： 315 功能：require_once

Answer 1

您可以将多个值存储为$dataarray key，然后仅发送$data以查看和使用这些键来检索值。我已经在下面纠正了您的代码，它应该根据您的需要工作。我在必要时提到了评论。

public function index() {
$data = array();
$data['getALlCate']  = $this->Product_model-> getAllCategory(); // store it in an array instead (I've changed it to getALlCate from getALlCat, so you don't have to change anything in your view)
//Retrieve cart Data
$data['cartItems']  = $this->cart->contents();
//$this->load->view('cart/header', $data); // including header and footer   
$this->load->view('cart/cartbody', $data);
$this->load->view('common/footer');    //including header and footer
}
}
// you can retrieve data in view by accessing $cartItems and $getALlCate variables.

希望对您有所帮助。

Answer 2

尝试以下

$this->load->view('cart/cartbody',['getAllCate'=>$getALlCat, 'cartItems'=> $this->cart->contents()]);