Calling PHP from Smarty template

Question

I am trying to integrate an ad package into my Smarty based site. I have been given the following PHP code that I need to add to my footer file. But due to it being Smarty I need to add the code instead to my php file so that it can be called/included in my Smarty template file. This was the code that I was given and that I need to include:

    <?php if(function_exists('ad_footer')) ad_footer(); ?>

But in the php file I am not sure how to achieve this - I have got this example and wanted to know if it looked correct??

if(function_exists('ad_footer')) {
 ob_start();
 ad_footer();
 $smarty->assign('ad_footer', ob_get_clean());

}

Does the above look the right way to do it?

Thanks in advance

Answer 1

我继续创建了一个测试页面，看看上面是否有效，但是这样做会坚持使用这段代码。