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Php 在会话变量中存储数组并在codeigniter中使用foreach检索它_Php_Codeigniter_Session - Fatal编程技术网

Php 在会话变量中存储数组并在codeigniter中使用foreach检索它

Php 在会话变量中存储数组并在codeigniter中使用foreach检索它,php,codeigniter,session,Php,Codeigniter,Session,这是我在控制器中的代码 class placeorder_ajax extends CI_controller { function __construct() { parent::__construct(); } //change text to check line endings //new line endings function index() { //echo "hii"; //echo "<script>alert('dasdas');

这是我在控制器中的代码

class placeorder_ajax extends CI_controller
{
 function __construct()
 {
    parent::__construct();
 }

//change text to check line endings
//new line endings

function index()
{       
//echo "hii";
//echo "<script>alert('dasdas');</script>";


//unset($_SESSION['cart']);
$data = array('product_id'=>$this->input->post('product_id'),
                'quantity'=>$this->input->post('quantity'),
                'unit'=>$this->input->post('unit'),
                'unit_rate'=>$this->input->post('unit_rate'));

                $this->session->set_userdata($data);

                    print_r($data);
?>
<table>
<tr>
<th>Item Name</th>
<th>Quantity</th>
<th>Amount</th>
<th>Action</th>
</tr>
<?php
$i=0;
foreach($_SESSION['cart'] as $cart)
{
    //echo "<pre>"; print_r($cart); echo "</pre>";
    $product_name = $this->db->query("SELECT product_name FROM product WHERE 
 product_id='".$cart['product_id']."'");
    echo "<tr>";
    echo "<td>".$product_name."</td>";
    echo "<td>".$cart['quantity']."</td>";
    echo "<td>".$cart['unit']."</td>";
    echo "<td>".$cart['unit_rate']."</td>";
    echo "<td><a href='javascript:void(0)' rownum='".$i."' class='remove_from_cart'><img  
 src='assets/img/delete.png'/></a></td>";
    echo "</tr>";
    $i++;
 }
?>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
</table><?php
  }   
  }
  }
class placeorder\u ajax扩展了CI\u控制器
{
函数_u构造()
{
父项::_构造();
}
//更改文本以检查行尾
//新行结尾
函数索引()
{       
//回声“hii”;
//回显“警报('dasdas');”;
//取消设置($_会话['cart']);
$data=array('product\u id'=>$this->input->post('product\u id'),
“数量”=>$this->input->post('quantity'),
“单位”=>this->input->post('unit'),
‘单价’=>this->input->post(‘单价’);
$this->session->set_userdata($data);
打印(数据);
?>
项目名称
量
数量
行动

您的数组是关联数组。因此,请使用foreach循环将其打印为键值对

$myarray =  $_POST;
$_SESSION['myarray_insession'] = $myarray;
foreach($\u会话['cart']作为$key=>$value){
//$key将是产品id、数量等
//$value将是相应的值
echo“key:$key
value:$value”; //仅用于格式化输出 //这只会再插入一个中断 回声“
”; }
试着做这样的事情

$myarray = array('product_id'=>$this->input->post('product_id'),
                'quantity'=>$this->input->post('quantity'),
                'unit'=>$this->input->post('unit'),
                'unit_rate'=>$this->input->post('unit_rate'));


$_SESSION['myarray_insession'] = $myarray;

然后像这样使用foreach


问题是什么?我不知道如何在会话中存储该数组,以及如何使用foreach loop检索该数组值,
无法使其工作的意思是什么
有错误吗?@KedarB:检查这里如何在会话中存储数据-@Napster我做了这个$this->session->set_userdata($data);但我应该将其存储在哪里,如何检索?
$myarray = array('product_id'=>$this->input->post('product_id'),
                'quantity'=>$this->input->post('quantity'),
                'unit'=>$this->input->post('unit'),
                'unit_rate'=>$this->input->post('unit_rate'));


$_SESSION['myarray_insession'] = $myarray;
foreach($mysession as $row=>$value){

    }