Interview Question: Can we have an echo before header?

[Balu]

I appeared for php test, their I was asked one question for which I could not find the answer.The question is like this.\[code\]echo "MESSI is injured!!";header("Location:somepage.php");\[/code\]Interviewer want both header and echo to be written on the same page.I wonder how's it possible.It should give some error likeheaders already sent by (output started at .....Is it really possible to write echo and header onto same page !!!