list subcategories

Hi there,

Give this code a try:

add_shortcode( 'list_subcats', function( $atts ) {
    $atts = shortcode_atts(
        array(
            'id' => '',
    ), $atts, 'list_subcats' );

    ob_start();
    
    $term_id = $atts['id'];
    $taxonomy_name = 'category';
    $term_children = get_term_children( $term_id, $taxonomy_name );

    echo '<ul class="list-subcats">';

    foreach ( $term_children as $child ) {
        $term = get_term_by( 'id', $child, $taxonomy_name );
        
        // Check if the term has any posts
        if ( $term->count > 0 ) {
            echo '<li><a href="' . get_term_link( $child, $taxonomy_name ) . '">' . $term->name . '</a></li>';
        }
    }

    echo '</ul>';

    return ob_get_clean();
} );

You are welcome   🙂