php redirect problem

[dpr]

I have a very strange problem:

I am doing a 301 redirect

header( "HTTP/1.1 301 Moved Permanently" );
echo "Location: " . $newurl;

header( "Location: " . $newurl );

This works perfectly

But the problem is when it goes to the new page

In that new page I have certain conditions and if the conditions are not fulfilled then it redirect to a page not found.

if($determiner == "page_not_found")
{
header("Location: http://www.domain.com/page_not_found");

}

BUT in the new page no matter what I do it always goes to "page not found" page, even if all the conditions are met.

But if I echo a character, even a space, the page will load correctly if the conditions are met

echo " ";
if($determiner == "page_not_found")
{
header("Location: http://www.domain.com/page_not_found");

}

[NogDog]

The echo is preventing the header() from working, since you cannot send headers once any output has been sent. Therefore it's not affecting the if condition, just stopping the header() from executing. If you had all error reporting turned on you'd be getting a "Headers already sent" error message.