How to add custom urls programmatically

Hello
I created custom urls that are not included in sitemap.
How can I add urls programmatically?

I tried

private function addUrlsToSitemap($linkUrls){
    
    require_once('wp-content/plugins/google-sitemap-generator/sitemap-loader.php');    
    require_once('wp-content/plugins/google-sitemap-generator/sitemap.php');        
        
    $googleSitemapGeneratorLoader = new GoogleSitemapGeneratorLoader();
    $googleSitemapGeneratorLoader->LoadPlugin();        

    if(class_exists('GoogleSitemapGeneratorPage')){    

        $priority = '0.5';
        $changeFreq = 'weekly';
        $lastMod = time();
            
         foreach ($linkUrls as $key=>$linkUrl) {     

                     $pages[] = new GoogleSitemapGeneratorPage($loc, $priority, $changeFreq, $lastMod, null);    
         }
        
        
        
        $sg = GoogleSitemapGenerator::GetInstance();

        $sg->SetPages($pages);
        $sg->SavePages();
        
        return;
    }  

  }

But urls aren’t saved.
I’m afraid I am missing one last step.

• This topic was modified 3 years, 2 months ago by delbono72.
• This topic was modified 3 years, 2 months ago by delbono72.
• This topic was modified 3 years, 2 months ago by delbono72.