how to get cookie contents

Hi all.

I got a problem when retrieving contents from cookies that I have set.

Here are the codes:

// NOW SET COOKIES
setcookie('km_rt_user_id', $id, time()+120, '/', '', 0);
setcookie('km_rt_user_name', $user_name, time()+120, '/', '', 0);
				
echo "<br />Now cookies have been dropped. Checking...<br />";
echo "{$_COOKIE['km_rt_user_id']}  -  {$_COOKIE['km_rt_user_name']}";

Code (markup):

The errors I am getting are:
Notice: Undefined index: km_rt_user_id
Notice: Undefined index: km_rt_user_name

But, I can see the cookies have been set when I check the browser cookies.

Any help appreciated.

Thanks.

 

setcookie("km_rt_user_id", $id, time()+120);
setcookie("km_rt_user_name", $user_name, time()+120);

PHP:

And why would you expire a cookie after 2 minutes? Normally you use like 1 hour

If the script still returns a notice, you can disable notices.. Just put this in top of your php file that sets the cookie:

error_reporting (E_ALL ^ E_NOTICE);

(think it's that).

 

Thank you for your reply. I used 2 minz for testing. xd

I already tried your codes, but no luck.


It is so weird, after the cookie is dropped, for some reason it cannot detect the cookie.

setcookie('km_rt_user_name', $user_name, time()+60);
				
if(isset($_COOKIE['km_rt_user_name'])) {				
	echo "lala";
}

Code (markup):

So, it cant even printout lala.

so strange.

 

Here are the codes from my login php.

<?php

include_once('db_connect.php');
include_once('global_function.php');


if(isset($_COOKIE['km_rt_user_id']))
{
	echo "You have already logged in. Now directing you to homepage." ;	
	echo '<script type="text/javascript">';
	echo "\n<!--\n";
	echo "setTimeout('Redirect()',5000);";
	echo "\nfunction Redirect()";
	echo "{\n";
	echo "\tlocation.href = 'login.php';\n";
	echo "}\n";
	echo "\n--></script>\n";

}

else // COOKIE IS NOT SET YET
{
	echo "cookie is not set yet.";
	
	$error = array(); $user_name = null; $password = null;
	
	if(isset($_POST['submitted'])) // FORM IS SUBMITTED
	{	
		if(empty($_POST['user_name']))	
		$error[] = 'You forgot to enter your User Name.';
		else $user_name = escape_data($_POST['user_name']); 
		
		if(empty($_POST['password']))
		$error[] = 'You forgot to enter your Password.';
		else $password = escape_data($_POST['password']);
		
		if(empty($error)) // USER_NAME AND PASSWORD ARE FILLED
		{
		$query = mysql_query("SELECT id, user_name FROM login
					   WHERE user_name = '" . $user_name . "' 
					   AND password = '" . MD5('$password') . "'
					  ") or die(mysql_error());
			
		// Save result
		list($id, $user_name) = mysql_fetch_row($query);

		// If id is not empty then a combination was found
		if(!empty($id)) {
				echo "Record found!!! Welcome " . $user_name . " !";
				
				// NOW SET COOKIES
				setcookie('km_rt_user_id', $id, time()+60);
				setcookie('km_rt_user_name', $user_name, time()+60);
				
				echo "<br />Now cookies have been dropped. Checking...<br />";
				
				//echo "{$_COOKIE['km_rt_user_id']}  -  {$_COOKIE['km_rt_user_name']}";
				if(isset($_COOKIE['km_rt_user_name'])) {
				
				echo "lala";

				$the_name = $_COOKIE["km_rt_user_name"];echo $the_name;
				}
								
				exit();			
			}
			
			else {
				echo "no record found.";
				}
				
		}
		
		else {// THERE ARE SOME ERRORS WITH USER_NAME AND PASSWORD
			foreach($error as $msg)
				echo "<p>" . $msg . "</p>";
		}
	}

	
?>

	<form action="login.php" method="post">
	<p>User Name: <input type="text" name="user_name" size="20" maxlength="30" /></p>
	<p>Password: <input type="password" name="password" size="20" maxlength="30" /></p>
	<p><input type="submit" name="submit" value="Login" /></p>
	<input type="hidden" name="submitted" value="TRUE" />
	</form>
	
<?php
} // END OF COOKIE IS NOT SET YET
?>

PHP:

 

Oh , it seems like it is not possible to set a cookie and then retrieve the cookie content right after it.
It needs a page load again.

I simply refreshed the page, the cookie content showed up.

 

OR, you could try to use ob_start(); and in the ending line ob_end_flush();

 

header wouldn't set if you are printing some date before header like:

<?php
echo "testing";
header("Location: http://www.example.com/");
?>

Code (markup):

so that you need to add ob_start(); at the top & ob_end_flush(); at the end

 

Yes. Cookie does not automatically detected if there is no cookie before. You have to reload the page or you can use redirection into the same page.