child theme – unable to hide sub categories main menu

php code does not belong in style.css.

the main menu is not made with wp_list_categories() but with wp_nav_menu();

if you see sub category items in the main menu, then you probably have added tham into the custom menu at some point, where you can remove them again; https://codex.www.ads-software.com/Appearance_Menus_Screen

thank you for your reply – however as i said just making the child theme was a huge step for me .. so im not sure what your saying i need to do. i thought the main reson to make child theme was so i can make all the mods thier ( so im confused )

do i create another file ( A functions.php file )in that child folder or do i take that php code & insert it into the actual
functions.php file of the parent theme ????

will this code remove sub categories from my main menu ..
<?php wp_list_categories('&title_li=&depth=1'); ?>

i need simple instruction,
im new to this but would like to learn
So more help would be great … ( thank you )

are you using the custom menu?

by default, i.e. if the custom menu is not activated, Twenty Eleven only shows pages in the menu;

if you are seeing category links, then I would assume that you are indeed using the custom menu; and you would need to make the changes there.

please post a link to your site to illustrate the problem.

are you using the custom menu? ( i think so )
here is the blog ( brand new )
https://psychic3000.com/wordpress/

will be doing horoscopes, daily, weekly, monthly, etc
daily horoscope will be main category
then i will have 12 sub categories

weekly horoscope will also be main category
then i will have 12 sub categories
12 sub caterories are zodic signs

so i need to hide sub categories form main menu
also need to hide post from horoscopes from front page

thank you for the reply & trying to help

so i need to hide sub categories form main menu

you seem to be referring to the sidebar categories widget;
to suppress sub categories in the categories widget:

if you don’t have a functions.php in your child theme yet, create a new file functions.php in the child theme, and add in the first line:

<?php

– https://codex.www.ads-software.com/Child_Themes#Using_functions.php

then add:

add_filter('widget_categories_args','custom_category_widget_args');
function custom_category_widget_args($args) {
$args['depth'] = '1';
return $args;
}

need to hide post from horoscopes from front page

what categories are these?

generally https://codex.www.ads-software.com/Plugin_API/Action_Reference/pre_get_posts#Exclude_categories_on_your_main_page

i.e. you will need to add the code into functions.php, with the category ID numbers changed to the ones you want to exclude:

function exclude_homepage_categories( $query ) {
    if ( $query->is_home() && $query->is_main_query() ) {
        $query->set( 'cat', '-1,-1347' );
    }
}
add_action( 'pre_get_posts', 'exclude_homepage_categories' );

allright, thats some useful info
thank you for taking the time to be so helpful

ok, i created the functions.php
and copied your code into it

<?php

add_filter('widget_categories_args','custom_category_widget_args');
function custom_category_widget_args($args) {
$args['depth'] = '1';
return $args;
} 

function exclude_homepage_categories( $query ) {
    if ( $query->is_home() && $query->is_main_query() ) {
        $query->set( 'cat', '-15' );
    }
}
add_action( 'pre_get_posts', 'exclude_homepage_categories' );

the post from category 15 & all sub categories did dissapear from the front page ( which is great !!! ) however the sub categories still show in the side bar main menu

So more help would be wonderful … ( thank you for your time )

the sub categories still show in the side bar main menu

the ‘depth’ parameter seems only be working when the output is set to ‘hierarchical’;

try to change this line:

$args['depth'] = '1';

to these two lines:

$args['depth'] = 1;
$args['hierarchical'] = 1;

ummmmmmm yes sir OMG ( it worked )

but before i go & mark this resolved i will go ahead & ask
if i want to hide additional sub categories
i would edit this line

$query->set( 'cat', '-15, -16' );

i would add , -subcategory#, etc’ );

and the last question ..
what if i want to hide a main category ??

you did a super job & are an awesome moderater !!!
thank you so much for helping me out !!!

what if i want to hide a main category ??

you could also add it to the list;

I assume that this would also hide all sub categories of that main category at the same time…

if you wan’t to hide a main category, but allow the sub categories of that main category, this is getting meore complex;
try using:

$query->set( 'category__not_in', array(15,16);

for example, this would exclude cat 15 and cat 16, but allow any of their sub categories (untested; I would verify this in a test blog before going live).

yes, i would just add it $query->set( ‘cat’, ‘-15, -16’ );
i was just making it more complicated than need be
yes if i hid main category i would hide sub category

you’ve gone above & beyond
your are a great source of wisdom !!! ( thank you )

alchymyth – You are amazing! I’ve been searching for hours how to “Hide child categories” – Nothing has worked until I came across this thread. This may be out of place, But your answers are helping more people than just the thread starter!