modify-breadcrumb

<?php 
add_filter( 'wpseo_breadcrumb_links', 'unbox_yoast_seo_breadcrumb_append_link' );
 function unbox_yoast_seo_breadcrumb_append_link( $links ) {
     global $post;
     if( is_singular('cpt_events')){
		$date_maintenant = date('Y-m-d H:i:s');
		$event_date_start = get_field('event_date_start',  $post->ID) ;
		$event_date_end = get_field('event_date_end',  $post->ID) ;
 	
		if( ( $date_maintenant <= $event_date_start)  && ($date_maintenant <= $event_date_end )){
			$url = get_permalink(418);
			$text = get_the_title(418);
		}else{
			$url = get_permalink(421);
			$text = get_the_title(421);
		}

         $breadcrumb = array(
         'url' => $url,
         'text' => $text,
       );

	   array_splice( $links, -1, 0, array( $breadcrumb) ); 

     }
     return $links;
 }