?cinema=(刚新建的)> 记录里的值。 $selCinema = (int)old('cinema_id', (int)($_GET['cinema'] ?? 0) ?: ($m['cinema_id'] ?? 0)); $curAttendees = array_map('intval', array_column($m['attendees'] ?? [], 'id')); $selAttendees = array_map('intval', (array)old('attendees', $curAttendees)); ?>