wordpress - Display posts from the same child taxonomy as the current post -

i’m following tutorial

https://sridharkatakam.com/custom-wordpress-widget-showing-cpt-entries-categorycategories/

i have 2 custom taxonomies (events / centers), respective child taxonomies ( event1, event2… / center1, center2…).

what should change display posts same child taxonomy current post? (one post can use 1 eventschild taxonomy, centers child taxonomy, or both.)

i want match taxonomy, don’t use category.

what have use instead of these?

get_the_category() category_nicename 

don’t mind if using method

https://sridharkatakam.com/show-posts-category-current-post/

very appreciate help!

<?php  //first current term $current_term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );  //then set args wp_list_categories  $args = array(     'child_of' => $current_term->term_id,     'taxonomy' => $current_term->taxonomy,     'hide_empty' => 0,     'hierarchical' => true,     'depth'  => 1,     'title_li' => ''  );  wp_list_categories( $args ); ?> 

^^this how did donkey's years ago :)