stephaneeybert
asked on
Conflict between SetCookie() and include ?
Dear All,
I would like to know why I cannot use the SetCookie() function after having used the include directive in a PHP page.
If I use the SetCookie() function before using the include directive, I don't get any error message. But if I use it after, I get a message saying that the html header has already been sent. I know that the SetCookie() function must be used AFTER using the <HEAD> html tag. But how come it also must be used after using the include directive?
Kind Regards
Stephane
I would like to know why I cannot use the SetCookie() function after having used the include directive in a PHP page.
If I use the SetCookie() function before using the include directive, I don't get any error message. But if I use it after, I get a message saying that the html header has already been sent. I know that the SetCookie() function must be used AFTER using the <HEAD> html tag. But how come it also must be used after using the include directive?
Kind Regards
Stephane
the setcookie() function (session() equally) adds information to the http header that is sent before _any_ content. This is like typing a command on your command line, after you've pressed enter, there is no way of altering the parameters. So you cannot send the cookie information after the <header> tag. Maybe there is a confusion here between the HTML <HEADER> tag and the HTTP header containing the cookie
Be especially aware of any whitespaces and newlines outside the <?php ?>tags
maf
Be especially aware of any whitespaces and newlines outside the <?php ?>tags
maf
ASKER
Here is what I do:
<?php
include myfile.inc
?>
<?php
setcookie(...);
print ("<HTML><HEAD><BODY>");
....
?>
And it does not work.
If I remove the include directive, then it works.
Cheers
Stephane
<?php
include myfile.inc
?>
<?php
setcookie(...);
print ("<HTML><HEAD><BODY>");
....
?>
And it does not work.
If I remove the include directive, then it works.
Cheers
Stephane
ASKER
What is it with the white spaces and new lines outside of the php tags?
What should I do?
Cheers
Stephane
What should I do?
Cheers
Stephane
have a look at the line between the ?> an the <?
include myfile.inc
?>
<?php
setcookie(...);
try
<?
include myfile.inc
// no ?> <? here
setcookie(...);
?>
you may not output any characters (that's what the line actually does) before setcookie()
maf
include myfile.inc
?>
<?php
setcookie(...);
try
<?
include myfile.inc
// no ?> <? here
setcookie(...);
?>
you may not output any characters (that's what the line actually does) before setcookie()
maf
ASKER
Hi maf,
It was white spaces after the ?> in the included files that posed problem. I removed them, and now it's fine. You got your points.
Thanks
Stephane
It was white spaces after the ?> in the included files that posed problem. I removed them, and now it's fine. You got your points.
Thanks
Stephane
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I think you can place it after <HTML> might be a bug.... It get the same error with session on PHP4