如何在ci中删除存储在session中的数组的值 - How can i delete value of an array stored in session in ci?

How can i delete value of an array stored in session in ci?

本文关键字：session 数组删除 ci 存储 | 更新日期: 2023-09-27

我的产品id以数组形式以'pid'存储在会话中。现在，我想删除它的一个值这个值来自$id变量。如何删除其中一个值?

我试着像下面这样取消设置，但它不起作用。

$this->session->unset_userdata('pid', $id);

//first get whole array in session sored as pid key  
     $ses_array = $this->session->userdata('pid');
//remove value you want to delete means $id
     if(($key = array_search($id, $ses_array)) !== false) { 
           unset($ses_array[$key]);
     }
//again set this array to session
$this->session->set_userdata('pid',$ses_array)
     print_r($this->session->userdata('pid'));

CI session unset_userdata()方法不支持多级数组中的未设置值。

PS:可以访问Session类userdata变量，默认为public

试试这个

$this->session->set_userdata(array('pid' => array(1,2,3,4,5,6)));
unset($this->session->userdata['pid'][4]); //your id key ['pid'][$id]
print_r($this->session->all_userdata());