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<?php
namespace appindexcontroller;
use thinkController;

class Base extends Controller
{
    public function _initialize()
    {
        parent::_initialize();
        // ...
    }
    
    public function index()
    {
        // ...
    }

    public function checkLogin()
    {
        // ÅжÏÓû§ÊÇ·ñµÇ¼
        if(!session('?user_id')) {
            $this->redirect('user/login');
        }
    }
}

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<?php
namespace appindexcontroller;
use thinkController;

class Base extends Controller
{
    public function _initialize()
    {
        parent::_initialize();

        $this->checkLogin(); // ŲÓÃ×Ô½ç˵ҪÁì¼ì²âÓû§ÊÇ·ñµÇ¼
    }
    
    public function index()
    {
        // ...
    }

    // ÖØд»ùÀàµÄredirectÒªÁì
    protected function redirect($url, $params = array(), $code = 302, $with_prefix = false)
    {
        // Ä¿½ñÓû§ÒѵǼ£¬ÔòÖ±½ÓÊä³öÄ£°å
        if(session('?user_id')) {
            parent::redirect($url, $params, $code, $with_prefix);
        }
        // Ä¿½ñÓû§Î´µÇ¼£¬ÔòÌøתÖÁµÇ¼ҳÃæ
        else {
            parent::redirect('user/login');
        }
    }
}

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