php - 如何从 MySQL 列中提取图像以显示在 Web 应用程序上

Question

抱歉，如果我不太清楚..

好吧，我有一个网络应用程序，显示我公司的所有车队车辆。我正在从数据库中提取信息，我想要的是插入“支持货车”的图像，以便当它出现时在我的应用程序上显示图像是从数据库中提取的，我不确定 Blob 数据或任何内容，因此清晰的说明将非常有帮助

这是我的主查询 - 不是“支持货车”查询，我将在此查询下发布

主查询

 SELECT
   vi.id as 'VehicleId', 
   vi.class_type as 'VehicleClass',
   vi.registration_number as 'VehicleRegistrationNumber',
   vr.role_name as 'VehicleRole',
   vm.name as 'VehicleMake',
   vmo.name as 'VehicleModel',
   ud.name as 'Depot location'

 FROM 
   unify_rebuild.vehicle_information as vi
 LEFT JOIN 
   unify_rebuild.vehicle_role as vr
  ON
   vi.unit_role = vr.role_id
 LEFT JOIN
   unify_rebuild.vehicle_manufacturer as vm
  ON
   vi.make = vm.id
 LEFT JOIN
   unify_rebuild.vehicle_model as vmo
  ON
   vi.model = vmo.id
 LEFT JOIN
   unify_rebuild.unify_depot as ud
  ON
   vi.depot_current_location = ud.id

这是支援车查询-

 SELECT
   vi.id as 'VehicleId', 
   vi.class_type as 'VehicleClass',
   vi.registration_number as 'VehicleRegistrationNumber',
   vr.role_name as 'VehicleRole',
   vm.name as 'VehicleMake',
   vmo.name as 'VehicleModel',
   ud.name as 'Depot location'

 FROM 
   unify_rebuild.vehicle_information as vi
 LEFT JOIN 
   unify_rebuild.vehicle_role as vr
 ON
   vi.unit_role = vr.role_id
 LEFT JOIN
   unify_rebuild.vehicle_manufacturer as vm
 ON
   vi.make = vm.id
 LEFT JOIN
   unify_rebuild.vehicle_model as vmo
 ON
   vi.model = vmo.id
 LEFT JOIN
   unify_rebuild.unify_depot as ud
 ON
   vi.depot_current_location = ud.id

 WHERE vr.role_name='Support Van';

如有任何问题，请发表评论，并提前感谢您的帮助

卡尔文

Answer 1

通过您的 cms，您将图像上传到文件夹并获取其地址并将其保存在数据库中 并显示该图像，您从数据库中获取 URL，并在图像源中给出该图像的 URL 我认为这个链接对你有帮助 How to store file name in database, with other info while uploading image to server using PHP?