ThinkPHP Request Parameters Guide

In ThinkPHP, you can use the Request object in the controller to access the parameters passed to the controller. Here is an example:

use think\Request;

class Index
{
    public function index(Request $request)
    {
        // 获取GET参数
        $get_param = $request->param('param_name');

        // 获取POST参数
        $post_param = $request->post('param_name');

        // 获取所有参数
        $all_params = $request->param();

        // 获取指定参数并设置默认值
        $param_with_default = $request->param('param_name', 'default_value');

        // 判断参数是否存在
        $param_exists = $request->has('param_name');

        // 获取原始参数（不经过过滤）
        $raw_param = $request->param('param_name', '', 'raw');

        // 获取路由中的参数
        $route_param = $request->route('param_name');
    }
}

By using the above methods, it is easy to obtain the parameters passed to the controller and handle them accordingly.