如何删除codeigniter上的cookie

Question

我不知道如何删除cookie.我想要的是当我提交表格时.cookie也被删除.我尝试了delete_cookie("名称"),但是没有用.我认为因为我创建的cookie javascript.请检查我的代码以解决此问题.

这是我的示例文本字段:

<input name="cargo_no" type="text"  class="validate[required]"  id="cargonumber" onchange="setCookie('cargonumberC', this.value, 365);"/>

这是javascript

function setCookie(cookieName, cookieValue, nDays) {
    var today = new Date();
    var expire = new Date();

    if (!nDays) 
        nDays=1;

    expire.setTime(today.getTime() + 3600000*24*nDays);
    document.cookie = cookieName+"="+escape(cookieValue) + ";expires="+expire.toGMTString();
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i = 0; i < ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0) == ' ') c = c.substring(1, c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
  }
  return null;
  }

document.addEventListener('DOMContentLoaded', function() {
  var themeSelect = document.getElementById('cargonumber');
  var selectedTheme = readCookie('cargonumberC');

  if (selectedTheme) {
    themeSelect.value = selectedTheme;
  }
});

Answer 1

使用Codeigniter,将其放在控制器的save方法中:

尝试:

delete_cookie('name', $domain, $path); 

官方文件的详细信息

Answer 2

您可以从CodeIgniter中删除cookie.像使用cookie帮手一样

$this->load->helper('cookie');
delete_cookie("name");