[WP] add ACF field to excerpt

//based on https://generatepress.com/forums/topic/add-acf-custom-fields-to-a-post-excerpt/
//add country to voyage CPT excerpt
add_filter( 'the_excerpt', function( $excerpt ) {
	
	$terms = get_the_terms(get_the_ID(), 'pays');
	foreach ($terms as $term) {
		$term_link = get_term_link($term, 'pays');
		if (is_wp_error($term_link))
			continue;
		$country_link ='<a class="linkAsButton" href="' . $term_link . '">' . $term->name . '</a><br/> ';
	}	
    return $excerpt . $country_link;
} );