function renderHtml($contentRenderer = null)
{
    echo "<!DOCTYPE HTML>n";
    echo '<html>';
    if ($contentRenderer) $contentRenderer();
    echo '</html>';
}
                  
                
                    Comments
                                    
            
                    function renderHtml($contentRenderer = null)
{
    echo "<!DOCTYPE HTML>n";
    echo '<html>';
    if ($contentRenderer) $contentRenderer();
    echo '</html>';
}