Description

The following code:

<?phpecho'x';ob_end_flush();flush();// header('test: test');http_response_code(301);

Resulted in this output:

x

But I expected this output instead:

xWarning:  Cannot modify response code - headers already sent by (output started at ....php:12) in ...

I would expect about the same warning asheader() emit. In the repro above, I have verifiedheader(string) emits a warning, buthttp_response_code(number) currently does not.

PHP Version

any

Operating System

any