php – http_response_code()无效,总输出200

echo http_response_code('400');
return "error";

我有一个页面需要输出http状态

我设置了http_response_code(400)&尝试使用邮递员发帖.

It always return 200.

为什么http_response_code不起作用？

解决方法:

您需要像这样两次调用http_response_code

http_response_code(400); // this will get prevIoUs response code 200 and set a new one to 400
echo http_response_code(); // this will get prevIoUs response code which is Now 400
return;