public class Tab : System.MarshalByRefObject 

using System;
using ZennoLab.CommandCenter;
 
namespace Sample
{
    internal class Example
    {
        public static int Execute(Instance instance)
        {
            instance.ClearCookie();
 
            Tab tab = instance.ActiveTab;
            if ((tab.IsVoid) || (tab.IsNull)) return -1;
            if (tab.IsBusy) tab.WaitDownloading();
            tab.Navigate("lessons.zennolab.com");
            if (tab.IsBusy) tab.WaitDownloading();
            
            Tab tb = instance.NewTab("zennolab");
            tb.Navigate("zennolab.com");
            if (tb.IsBusy) tb.WaitDownloading();
            
            string text = tab.GetSourceText("utf-8");
            
            tab.Close();
            
            tb.SetSourceText(text);
            
            return 0;
        }
    }
}

<?php
namespace System;
namespace Zennolab\CommandCenter;
 
class Example
{
    public static function Execute($instance)
    {
        $instance->ClearCookie();
 
        $tab = $instance->ActiveTab;
        if (($tab->IsVoid) || ($tab->IsNull)) return -1;
        if ($tab->IsBusy) $tab->WaitDownloading();
        $tab->Navigate("lessons.zennolab.com");
        if ($tab->IsBusy) $tab->WaitDownloading();
            
        $tb = $instance->NewTab("zennolab");
        $tb->Navigate("zennolab.com");
        if ($tb->IsBusy) $tb->WaitDownloading();
            
        $text = $tab->GetSourceText("utf-8");
            
        $tab->Close();
            
        $tb->SetSourceText($text);
            
        return 0;
    }
}
?>