PHP code to protect content in wordpress template

IHi,
I need to protect certain content via php code in wordpress template file.

easiest way would be to protect
get_template_part('content', 'survey');

eg
Is there a good way to do this in php code, like using the shortcodes [am4show] ?

I've used this in the past to show simple messages:-

<?php
echo do_shortcode('[am4show not_have="p30;" have="p37;" ]<p>show message here</p>
[/am4show]');
?>

but I want to have a simple if else in php code.

Could I use something like this:-
<?php
if (Am_Lite::getInstance()->haveSubscriptions(array(1, 10))) {
get_template_part('content', 'survey') ;
} else {
echo '<p>This content is for full members only.</p>';
}
?>