[Plugin: Collapsing Categories] Manual installation : options not working

Hi!
I don’t like widgets that much, so I wanted to do a manual install by pasting the code you provided :

<?php
echo "<ul class='collapsCatList'>\n";
if (function_exists('collapsCat')) {
  collapsCat('showEmptyCat=1&showPostCount=false&showPosts=false&showPages=false');
} else {
  wp_get_categories('your_options_here');
}
echo "</ul>\n";
?>

As you can see, I specified some options. Still, the posts show (I haven’t checked the other options, this was the most important for me). Did I do something wrong?

I also tried leaving out the options in the code and setting them in the plugin. I’m still getting the default settings.

The only way I can get what I want is by modifying the default parameters in the code, but I’d like to know why it’s not working with just passing parameters in the function.

What should I do? Thanks!

https://www.ads-software.com/extend/plugins/collapsing-categories/