[@robin-w Moderator 5 years, 8 months ago]

ok try this for topics in a forum

add_filter ('bbp_get_topic_freshness_link' , 'rew_check_freshness2', 10 , 5 ) ;

function rew_check_freshness2 ($anchor, $topic_id, $time_since, $link_url, $title) {
	$last_active = get_post_meta( $topic_id, '_bbp_last_active_time', true );
	$diff = strtotime('now') - strtotime($last_active) ;
	if ($diff<86400) {
	$anchor = '<span class="fresh">'.$anchor.'</span>' ;
	}
return $anchor ;	
}