Cookies

overyde · Jun 2, 2003

I got a problem with an authorization code. The login works fine. But my cookie does not see, to be working.

Here's the login code:
<?php
//check for required fields from the form
if ((!$_POST[username]) || (!$_POST[password])) {
header("Location: login.php&quot

;
exit;
}

//connect to server and select database
$conn = mysql_connect("localhost","","&quot

or die(mysql_error());
mysql_select_db("login",$conn) or die(mysql_error());

//create and issue the query
$sql = "select f_name, l_name from auth_users where username =
'$_POST[username]' AND password = password('$_POST[password]')";
$result = mysql_query($sql,$conn) or die(mysql_error());

//get the number of rows in the result set; should be 1 if a match
if (mysql_num_rows($result) == 1) {

//if authorized, get the values of f_name l_name
$f_name = mysql_result($result, 0, 'f_name');
$l_name = mysql_result($result, 0, 'l_name');

//set authorization cookie
setcookie("auth", "1", 0, "/", "localhost", 0);

//prepare message for printing, and user menu
$msg = "$f_name $l_name is authorized!";
$msg .= "Authorized users menu:";
$msg .= "<ul><li><a href=\"restcheck.php\">secret page</a></ul>";

} else {

//redirect back to login form if not authorized
header("Location: login.php&quot

;
exit;
}
?>
<html>

<head>
<title>User Authorized</title>
</head>

<body>

<? print "$msg"; ?>

</body>
</html>

and the testing for auth cookie:
<?php
if ($_COOKIE[auth] == "0&quot

{
$msg = "You are an authorized user.";
} else {
//redirect back to login form if not authorized
header("Location: login.php&quot

;
exit;
}
?>
<html>

<head>
<title> You have entered a restricted zone!</title>
</head>

<body>

<?php print "$msg"; ?>

</body>
</html>

youradds · Jun 2, 2003

Cookies are not made available straight after creation. The way I normally do it, is;

This is the part in the MySQL query...

Code:

setcookie(&quot;auth&quot;, &quot;1&quot;, 0, &quot;/&quot;, &quot;localhost&quot;, 0);
$logged_in = 1;

Then something like this to see if they are logged in....

Code:

if ($_COOKIE[auth])     { echo &quot;loged in ok&quot;;  } 
elseif ($logged_in = 1) { echo &quot;logged in ok&quot;; }
else                    { echo &quot;not logged in&quot;;}

Hope that helps

Andy

DRJ478 · Jun 2, 2003

set_cookie sets the parameters to be sent with the header when the output of the PHP script is sent.

$_COOKIE referes to the superglobal array that is set when the request for this PHP script is received. You cannot manipulate the variables in $_COOKIE with set_cookie.

You would have to manipulate $_COOKIE manually.

After all, cookies are meant to conserve something between two pages, not within the same script.

overyde · Jun 2, 2003

My problem is that it seems that the cookies are not being written. Is there a setting in the php.ini or something that I must configure. Im using Windows XP, MySQL 4.0.4. and php 4.2.3.

sleipnir214 · Jun 3, 2003

How have you tested cookie writing?

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Cookies

overyde

Programmer

youradds

Programmer

DRJ478

IS-IT--Management

overyde

Programmer

sleipnir214

Programmer

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