All headers have to be sent before any output is sent to the browser.
"Chris W. Parker" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
GodFoca <mailto:[EMAIL PROTECTED]>
on Friday, May 21, 2004 1:29 PM said:
> Warning: Cannot add header information - headers already sent by
> (output started at /home/tiempodemaria/main.php:3) in
> /home/tiempodemaria/main.php on line 11
[snip]
> Does anybody knows what's going on? I don't understand which header
> is being sent before the setting of the cookie, and I don't
> understand the ":3" in the error description. This page is a frame,
> so I don't have any head tag, does that matter to php?
headers != <head>
it's basically this:
1. you cannot create/write a cookie after you send any html output to
the client.
2. you cannot create/write a session value after you send any html
output to the client.
for one, you've got <html> at the very top of main.php. try rearranging
your file like this:
<?php
define(SECONDS_IN_THREE_MONTHS, 3600*24*90);
define(OFFSET_WITH_GMT, -3*3600);
$has_visited = isset($_COOKIE["TdM_visited"]);
if (!$has_visited) {
setcookie("TdM_visited",
(string) (time() + OFFSET_WITH_GMT),
time() + OFFSET_WITH_GMT + SECONDS_IN_THREE_MONTHS);
// the above (not blank) is line 11
} else {
$latestVisit = (int) $_COOKIE["TdM_visited"];
setcookie("TdM_visited",
(string) (time() + OFFSET_WITH_GMT),
time() + OFFSET_WITH_GMT + SECONDS_IN_THREE_MONTHS);
}
?>
<html>
<meta http-equiv="Content-Type" ...>
<link href="styles/main_style.css" ...>
<body>
...
hope this helps,
chris.
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