This question already has an answer here:
This is my user log in page. After the user enter log in details, I want to store cookie files and direct the user to home page. However, I keep getting this error I have tried every possible way to solve it and I have read other questions posted on here but nothing did solve my problem... am I missing something here? what could it be?
<?php //<--- line 4
error messages:
Warning: Cannot modify header information - headers already sent by (output started at /www/99k.org/p/h/o/phoneclassmate/htdocs/login.php:4) in /www/99k.org/p/h/o/phoneclassmate/htdocs/login.php on line 6
</div>
You need to enclose your if statement block as shown below:
if($_POST['submit']) {
$hour = time() + 3600;
setcookie('username', $_POST['username'], $hour,'/');
setcookie('password', $_POST['pass'], $hour,'/');
header("Location: tutorhomepage.php");
}
Also, you need to move connection etc. part just after the above segment.
<?php
if($_POST['submit']){
$hour = time() + 3600;
setcookie('username', $_POST['username'], $hour,'/');
setcookie('password', $_POST['pass'], $hour,'/');
header("Location: tutorhomepage.php");
}
//------ server and mysql connection
$connection = mysql_connect('mywebsite', 'username', 'password') or die('Unable to connect');
mysql_select_db('myDB') or die('unbable to select DB');
//------log in cookie check
if (isset($_COOKIE['username'])) {
$username = $_COOKIE['username'];
$pass = $_COOKIE['password'];
$check = mysql_query("SELECT * FROM tutors WHERE username = '$username'") or die(mysql_error());
while ($info = mysql_fetch_row($check)) {
if ($pass != $info[1]) {
} else {
header("Location: /tutorhomepage.php");
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Login</title>
</head>
<body><?php
//------- if form is submitted
if (isset($_POST['submit'])) {
// check if the user enetered login details
if (!$_POST['username'] | !$_POST['pass']) {
die('You must enter the required data.');
}
// and so on
The issue is that you're trying to send HTTP headers (Location:) after HTML code.
You should refactor your code to avoid that; or as a hack you can work around it using output buffering, that'll allow you to modify HTTP headers after you started outputting your HTML content. Not a great way to handle the problem IMHO but good to know anyway; see http://ca.php.net/manual/en/function.header.php#refsect1-function.header-notes