469,306 Members | 1,903 Online
Bytes | Developer Community
New Post

Home Posts Topics Members FAQ

Post your question to a community of 469,306 developers. It's quick & easy.

setcookie() not working

Hi,

I am quite new to PHP and recently I have been attempting to create a login script, just one problem, the setcookie function isn't working.

I have tried a basic php file with nothing other than a function to set and retrieve the cookie but still nothing.

Why is this happening?
May 21 '09 #1
9 25495
prabirchoudhury
162 100+
hey ..
you make sure doing the right code for the sercookie

Expand|Select|Wrap|Line Numbers
  1. examples: 
  2.  
  3.  
  4. setcookie("mycookie", $test, time() + 3600);
  5. setcookie("mycookie","",time() - 3600);
  6.  
  7. setcookie('my_id', $_REQUEST['my_id'], time() + 60*60*24*365);
  8.  
  9.  
  10.  
  11.  
if still problem there plz mention..
May 22 '09 #2
Atli
5,058 Expert 4TB
Hi.

There are a lot of reasons why thins could be happening, and simply stating that the function isn't working doesn't really narrow the list down.

We need a lot more details to be able to help with this.
Code examples and error messages are always helpful to.
May 22 '09 #3
I have tried all examples mentioned by "prabirchoudhury" and none seem to work, everytime I try and retrieve the cookie, the page either comes up blank or displays Array ( ), depending upon the method I use to view them.

Unfortunately there are no error messages to provide an insight as to why this is happening.

P.S. I am using my own server which again I have only just begun to do, is there anything that I need to set in the PHP config file in order to get cookies to work?
May 23 '09 #4
Markus
6,050 Expert 4TB
Are you sure that you have cookies enabled in your browser?
May 23 '09 #5
Atli
5,058 Expert 4TB
Try this:
Expand|Select|Wrap|Line Numbers
  1. <?php
  2.     error_reporting(E_ALL);
  3.     ini_set("display_errors", true);
  4.     header("Content-Type: text/plain");
  5.  
  6.     if(isset($_COOKIE['cookietest'])) {
  7.         var_dump($_COOKIE);
  8.     }
  9.     else {
  10.         $time = time();
  11.         setcookie("cookietest", $time, $time + 3600);
  12.         echo "Cookie set at: " . $time;
  13.     }
  14. ?>
When you first run it, it sets the cookie. Every request after that should show that cookie.

You shouldn't need to configure PHP in any way for this to work.
(I'm not even sure you can configure it to not support cookies :P)

If this doesn't work (if it keeps setting the cookie, rather than displaying it), then I'm guessing your browser doesn't support cookies.

Try using Firefox with the Web Developer plugin. It can show you all the cookies that are set on your browser, and if they are incorrectly set in some way.
May 24 '09 #6
I used the code you gave me and it seems to work, so I am now wondering, is the setcookie function the problem.

Here is my login script that I have tried to make, all of it works except for setting the cookie in any browser.

Expand|Select|Wrap|Line Numbers
  1. <?php
  2.     $result = mysql_connect("*********", "******", "*********");
  3.     $result = mysql_select_db("test");
  4.     $user = $_POST["usr"];
  5.     $pass = $_POST["pss"];
  6.     $usr_stat = 0;
  7.     $pss_stat = 0;
  8.     $sql = "SELECT password FROM ".tbl_login." WHERE login = '$user';";
  9.     $result = mysql_query($sql);
  10.     $row_array = mysql_fetch_array($result);
  11.     $expire = time()+60*60*24*30;
  12.  
  13.     if(!$result || (mysql_numrows($result) < 1)){
  14.       $usr_stat = 0;
  15.     }
  16.     else{
  17.       $usr_stat = 1;
  18.     }
  19.     if($pass == $row_array['password']){
  20.       $pss_stat = 1;
  21.     }
  22.     else{
  23.       $pss_stat = 0;
  24.     }
  25.     if($usr_stat == 1 && $pss_stat == 1){
  26.       setcookie ('curruser', $_POST['usr'], $expire);
  27.       header('Location: cktest2.php');
  28.     }
  29. ?>
  30. <html>
  31. <head>
  32. <title>Studying PHP</title>
  33. <link rel="stylesheet" href="css/main.css">
  34. </head>
  35. <body>
  36.  
  37. <h1>Login test</h1>
  38.  
  39. <form name="login" action="login.php" method="POST">
  40.   Username: <input type="text" value="" name="usr">
  41.   Password: <input type="password" value="" name="pss">
  42.   <input type="submit" value="Submit">
  43. </form>
  44.  
  45. <?php
  46.   if(!$result || (mysql_numrows($result) < 1)){
  47.     echo "<p>Username invalid</p>";
  48.   }
  49.   else{
  50.     echo "<p>Username valid</p>";
  51.   }
  52.   if($pass == $row_array['password']){
  53.     echo "<p>Password valid</p>";
  54.   }
  55.   else{
  56.     echo "<p>Password invalid</p>";
  57.   }
  58.   if($usr_stat == 1 && $pss_stat == 1){
  59.     echo "<p>Login details valid</p>";
  60.   }
  61.   else{
  62.     echo "<p>Login details invalid</p>";
  63.   }
  64.   if(isset($_COOKIE['curruser'])){
  65.     echo "<p>Welcome ".$_COOKIE['curruser'].", you are now logged in using cookies.</p>";
  66.   }
  67.   else{
  68.     echo "<p>You are not logged in.</p>";
  69.   }
  70.   print_r($_COOKIE);
  71. ?>
  72.  
  73. </body>
  74. </html>
  75.  
May 24 '09 #7
Atli
5,058 Expert 4TB
In the SQL on line #8 you use a constant 'tbl_login', but you don't set it anywhere.
Where does it come from?

Is this script being included into another script, or anything like that?

Keep in mind that the setcookie function doesn't work if you send anything to the output buffer before it is used.
Even a white-space before the <?php tag will cause the function to fail.

I tried your script with minor modifications to switch your DB validation to a static validation, and it worked fine.
This is the modified code I used:
Expand|Select|Wrap|Line Numbers
  1. <?php
  2. if(isset($_POST["usr"])) {
  3.     //$result = mysql_connect("*********", "******", "*********");
  4.     //$result = mysql_select_db("test");
  5.     $user = $_POST["usr"];
  6.     $pass = $_POST["pss"];
  7.     $usr_stat = 0;
  8.     $pss_stat = 0;
  9.     //$sql = "SELECT password FROM ".tbl_login." WHERE login = '$user';";
  10.     //$result = mysql_query($sql);
  11.     //$row_array = mysql_fetch_array($result);
  12.     $expire = time()+60*60*24*30;
  13.  
  14.     if(false/*!$result || (mysql_numrows($result) < 1)*/){
  15.         $usr_stat = 0;
  16.     }
  17.     else{
  18.         $usr_stat = 1;
  19.     }
  20.     if(true/*$pass == $row_array['password']*/){
  21.         $pss_stat = 1;
  22.     }
  23.     else{
  24.         $pss_stat = 0;
  25.     }
  26.     if($usr_stat == 1 && $pss_stat == 1){
  27.         setcookie ('curruser', $_POST['usr'], $expire);
  28.         header('Location: test.php');
  29.     }
  30. }
  31. ?>
  32. <html>
  33.     <head>
  34.         <title>Studying PHP</title>
  35.         <link rel="stylesheet" href="css/main.css">
  36.     </head>
  37.     <body>
  38.  
  39.         <h1>Login test</h1>
  40.  
  41.         <form name="login" action="test.php" method="POST">
  42.             Username: <input type="text" value="" name="usr">
  43.             Password: <input type="password" value="" name="pss">
  44.             <input type="submit" value="Submit">
  45.         </form>
  46.         <pre>
  47. <?php
  48. if(isset($_POST["usr"])) {
  49.     if($usr_stat == 0){
  50.         echo "<p>Username invalid</p>";
  51.     }
  52.     else{
  53.         echo "<p>Username valid</p>";
  54.     }
  55.     if($pss_stat == 0){
  56.         echo "<p>Password valid</p>";
  57.     }
  58.     else{
  59.         echo "<p>Password invalid</p>";
  60.     }
  61.     if($usr_stat == 1 && $pss_stat == 1){
  62.         echo "<p>Login details valid</p>";
  63.     }
  64.     else{
  65.         echo "<p>Login details invalid</p>";
  66.     }
  67. }
  68. if(isset($_COOKIE['curruser'])){
  69.     echo "<p>Welcome ".$_COOKIE['curruser'].", you are now logged in using cookies.</p>";
  70. }
  71. else{
  72.     echo "<p>You are not logged in.</p>";
  73. }
  74.  
  75. print_r($_COOKIE);
  76. ?>
  77.         </pre>
  78.     </body>
  79. </html>
May 26 '09 #8
Ahh, it's now working :)

I now know what the problem was thanks to Atli, I was using the constant where I shouldn't have, such simple things.

Sorry about that, i'll try and remember not to do that again, silly mistake.

Thanks for all your help.
May 26 '09 #9
Atli
5,058 Expert 4TB
Glad you got it working.

Those little things, like spelling errors and such, always seem to cause the most trouble, don't they :)
May 26 '09 #10

Post your reply

Sign in to post your reply or Sign up for a free account.

Similar topics

1 post views Thread by Craig Matthews | last post: by
16 posts views Thread by Phil Powell | last post: by
1 post views Thread by TG | last post: by
2 posts views Thread by Katherine Hall | last post: by
9 posts views Thread by LayneMitch via WebmasterKB.com | last post: by
reply views Thread by zhoujie | last post: by
1 post views Thread by Geralt96 | last post: by
reply views Thread by harlem98 | last post: by
By using this site, you agree to our Privacy Policy and Terms of Use.