Php 如何在浏览器的cookies中存储数据

在codeigniter中，如何在浏览器的cookies中存储数据

我正在这样做

$this->session->set_userdata('above_eighteen',"1");

这是正确的方法吗？在清除Cookie时是否会取消设置？

如文档所示

设置cookie:

$cookie = array(
    'name'   => 'The Cookie Name',
    'value'  => 'The Value',
    'expire' => '86500',
    'domain' => '.some-domain.com',
    'path'   => '/',
    'prefix' => 'myprefix_',
    'secure' => TRUE
);

$this->input->set_cookie($cookie);

cookie('The Cookie Name');

delete_cookie("The Cookie Name");

获取cookie:

$cookie = array(
    'name'   => 'The Cookie Name',
    'value'  => 'The Value',
    'expire' => '86500',
    'domain' => '.some-domain.com',
    'path'   => '/',
    'prefix' => 'myprefix_',
    'secure' => TRUE
);

$this->input->set_cookie($cookie);

cookie('The Cookie Name');

delete_cookie("The Cookie Name");

删除cookie:

$cookie = array(
    'name'   => 'The Cookie Name',
    'value'  => 'The Value',
    'expire' => '86500',
    'domain' => '.some-domain.com',
    'path'   => '/',
    'prefix' => 'myprefix_',
    'secure' => TRUE
);

$this->input->set_cookie($cookie);

cookie('The Cookie Name');

delete_cookie("The Cookie Name");