优化车位编号返回2

app/Models/ParkingSpaceCamera.php

@@ -81,7 +81,10 @@ class ParkingSpaceCamera extends Model
         );
         $space_number_arr = [];
         foreach ($space_ids as $space_id) {
-            $space_number_arr[] = ParkingSpace::getNumber($space_id);
+            $number = ParkingSpace::getNumber($space_id);
+            if ($number) {
+                $space_number_arr[] = $number;
+            }
         }
         if ($is_implode) {
             return $space_number_arr ? implode(',', $space_number_arr) : '';