the use of header(.....), redirect

[Anon]

Hi again,

im wondering about the use of the redirect function provided by php...

when a html calls a php
and i include the redirect function which is the header(...) at the first line; it will redirect to whatever location i specify.
BUT since this function always have to be at line 1, nothing much can be done in that particular php script?!?! coz everything underneath the header(...) is ignored?!?!
i want to know a way to do selections if else bla bla and redirect user according to certain condition/event.
hmm i hope u guys can understand,,. its 8am+ after a long night 🙂

thankss

[Anon]

Janet, header() has to producer the first OUTPUT, but not the first PHP code.

<? if ($something)
do_something();
else
header("Location: $someurl");
?>

... is perfectly OK.

[Anon]

hii,

if()
...
else
header(Location...

i found that the header() being used in this way doesn't work... although this is what i want..

[Anon]

Be very careful that nothing is transmitted -- NOTHING, not even a blank space -- before the header() function is called. That means the first character in your file has to be < and the second has to be ? ... it's very easy to overlook whitespace, but the PHP module won't overlook it, and as soon as data shows up it will terminate the header transmission and begin the body transmission.

[Anon]

Another thing to look out for is that you are sure to use a complete url for the location value in the header. This is explained on php.net's site: http://www.php.net/manual/en/function.header.php