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Posted by Jeff on 01/11/07 13:50
Hey
I'm using php 5.2.0 to create a web site. The Problem is that when logging
in I get the "headers already sent by " already sent error. In the login.php
(see below) this script is executed: header("Location:
index.php?mode=profile"); if user is successfully authenticated. This script
causes the "headers already sent by" error...
I don't know how to solve this error.. I guess I get it because the header
is already sent, but <head> always come before <body>... I think I have
rewrite some of this code to avoid this error, but I'm not sure about how to
do it...
Based on my code posted below (index.php and login.php), what do you think
is the easiest way of solving this error?
Best Regards
************* index.php *******************
<?php
session_start();
if ($_GET["mode"] == "logout") {
header("Location: index.php");
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Demo</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="menu.css" media="all" />
</head>
<body>
<?php
if ($_GET["mode"] == 1)
include 'search.php';
else if ($_GET["mode"] == "reg")
include 'registration.php';
else if ($_GET["mode"] == "login")
include('login.php');
else if ($_GET["mode"] == "logout")
include ('logout.php');
else if ($_GET["mode"] == "profile")
include 'profile.php';
else
include 'home.php';
?>
</body>
</html>
*************** login.php ********************
<?php
$username = $_POST["username"];
$password = $_POST["password"];
require_once('authentication.php');
if (isset($username) && isset($password)) {
try {
login($username, $password);
//include('profile.php');
header("Location: index.php?mode=profile");
}
catch (Exception $e) {
CreateLoginBox($e->getMessage());
}
}
else {
CreateLoginBox("");
}
?>
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