Caching

Hello

Im trying to start development in codeigniter 4 and I have a little problem with web caching. I have blog where there's for example articles with comments. I would like to cache all pages but whenever user add a comment page needs to be refreshed. How I can manually delete cached page? 

PHP Code:

public function show(string $title='', int $id=0)
    {
        $this->cachePage(120);
        $this->setArtTitle($title);
        $this->setArtId($id);
        $this->getArtData();
        helper('text');        
        $commentModel = new CommentsModel();
     
        $this->dataOutput['art'] = $this->artData;
        $this->dataOutput['title'] = $this->artData->art_title;
        $this->dataOutput['desc'] = character_limiter(strip_tags($this->artData->art_desc),150);
        $this->dataOutput['file'] = 'art';
        $this->dataOutput['comments'] = $commentModel->getArtComments($this->artId)->getResult();
        //view
        return view($this->template,$this->dataOutput);
    } 


Do I need to clean all cached pages ($cache->clean()) or there's any way to delete choosen cached pages?

Thanks in advance for any help

I believe that you can use the cache delete, if you use a page name for the key.

PHP Code:

$cache->delete('page_name'); 


What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

Thanks for Your response.

In this approach

PHP Code:

$this->cachePage(120); 


I can't set a page name. In cache folder i see some random names like 'b1547903222aa3e1d99833fa11afc3c3'