Conditional for single page for a certain category

You probably want to use in_category instead.

Thank you, I saw that, and I wasn’t sure if that would also include the main category, or only those within that category.

Hi Ok, I tried using this – but it’s not outputting anything for me:

<?php
$post = $wp_query->post;
if ( in_category('5') ) {
echo "";
} else {
echo "<div class=\"results\"><?php if(function_exists('the_ratings')) { the_ratings(); } ?></div>";
}
?>

It’s completely not showing for all entries now, is there something wrong in my code?

Have you considered using this plugin?
https://guff.szub.net/2005/07/21/post-templates-by-category/

Thanks so much, that actually is exactly what I need!