[Support request] Limit the number of categories displayed

Hi John,

Unfortunately, there’s no filter for that.

Another option is to re-render the list of terms and show only 3 terms through PHP. But you’d still need CSS to add styling to this.

Do you significantly have a lot of categories for some posts well over 3?

Hi there,

theres no way to filter the results of that dynamic data.
So instead you could:

1. Add this PHP snippet;

function custom_post_terms() {
    $terms = get_the_terms( get_the_ID(), 'category' );
    if ( $terms && ! is_wp_error( $terms ) ) {
        $output = '';
        $count = 0;
        foreach ( $terms as $term ) {
            if ( $count >= 3 ) {
                break;
            }
            $output .= '<a class="custom-class" href="' . esc_url( get_term_link( $term ) ) . '">' . esc_html( $term->name ) . '</a>';
            $count++;
        }
        $output .= '</ul>';
        return $output;
    }
}

add_filter( 'render_block', function( $block_content, $block ) {
    if ( 
        ! empty( $block['attrs']['className'] ) 
        && 'custom-terms' === $block['attrs']['className']  
    ) { 
        $terms = custom_post_terms();
        if ($terms) {
            return $terms;
        }
    }

    return $block_content;

}, 10, 2 );

2. add a Container Block with a class that you can you use to style the links.
3. in that Container add a Headline block with a Advanced > Additional CSS Class of: custom-terms

The function will swap the headline out for the first 3 terms

Ok, no problems.
To cover what the function above does:

1. you add a block with the classname. and this just acts as a placeholder nothing more.
2. the core then swaps the placeholder out with the results of that function.