Cookies with register_globals off

habuchas

The following code works with register_globals=On. What do I have to change to make it work with register_globals=Off. Of course I would like the code to be independent of registers_globals On or Off. I have PHP V4.2 on the testing server? Any assistance would be appreciated by this 70 year old man attempting to learn PHP.
Chas...........
<?php
if(!isset($COOKIE_SET))
{
setcookie("whichPage","$page");
header ("Location: $PHP_SELF?COOKIE_SET=1");
exit;
};
?>
<html>
<head>
<title>CookieWorks with RG On</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
Testpage for index.php
<a href="cookieworks.php?page=one">Link 1</a>
<a href="cookieworks.php?page=two">Link 2</a>
<a href="cookieworks.php?page=three">Link 3</a>
page =<?php print "$whichPage"; ?>
<?php
if(isset($_COOKIE['whichPage']))
{
include "$whichPage.htm";
exit;
};
?>
</body>
</html>

laserlight

When you use the $_COOKIE superglobal array, the code will work whether or not register_globals is set to On or Off.

Weedpacket

You'll also want to use $GET['COOKIE_SET'] instead of $COOKIE_SET; and $SERVER['PHP_SELF'] instead of $PHP_SELF.

habuchas

Now I get this:
Parse error: parse error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING in /home/chas/public_html/Cookie_Test/cookieone.php on line 5
When line 5 is now this:
header ("Location: $_SERVER['PHP_SELF']?COOKIE_SET=1");

I'll admit that I am new to PHP but I have read a lot of the documentation. I think my problem, other than age (70)', is that I come from many years as a 'Fortran' programmer background. 26 years working on the SR-71 Elint collection processing and have no experience with other programming languages. Being retired I started taking a WEB class at the local Jr college. After hearing and reading about PHP I am attempting to include some PHP code in to learn more about cookies. I have spent many hours trying to learn PHP from the docs but I find most of my knowledge comes from disecting examples. I apologize if I have offended anyone with what to some are basic questions.

Chas...........

tsinka

There are several ways:

 header ("Location: {$_SERVER['PHP_SELF']}?COOKIE_SET=1");
 header ("Location: $_SERVER[PHP_SELF]?COOKIE_SET=1");  

 header ("Location:".$_SERVER['PHP_SELF']."?COOKIE_SET=1");

Use curly braces, don't use single quotes or concatenate the strings.

Thomas

P.S.: I don't think that anyone is offended by your posts ... so .. I'm rather impressed)

habuchas

I spent another 2 days trying to sort it out but couldn't get it to work. All I am attempting to do is pass a cookie to the originating page with register_globals Off. I have shortened the code and implemented the suggestions but to no avail. Any help is appreciated. reg_globals=On it works, reg_globals-Off doesn't work. I have no more hair to fall out...........Anyone out there that can make it work?

<?php
if(!isset($GET['COOKIE_SET'] ))
{
setcookie("whichPage","$page");
header ("Location:".$SERVER['PHP_SELF']."?COOKIE_SET=1");

}
?>
<html>
<head>
<title>CookieWorks with RG Off</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
Testpage for index.php r_g = Off
<a href="cookieone.php?page=one">Link 1</a>
Cookies = <?php print_r ($_COOKIE); ?>
whichPage = <?php print ($page); ?>

</body>
</html>

laserlight

You should use $_GET['page'] instead of $page.

habuchas

I've tried $_GET['page'] instead of $page but it still doesn't work. Is anyone out thee running with register_globals=Off that is able to pass cookies successfully?
chas............

tsinka

The following test script worked on my server with register_globals=Off:

<?php
  // get register_globals, PHP_SELF and page stored in cookie
  $blnGlobals = ((bool)ini_get("register_globals")) ? "On" : "Off";
  $strSelf    = $_SERVER['PHP_SELF'];
  $strPage    = isset($_COOKIE['whichPage']) ? $_COOKIE['whichPage'] : "none";

  // delete cookie
  if (isset($_GET['delcookie']) && $_GET['delcookie'] === 'true') {
    setcookie("whichPage","",time()-3600);
    header("Location: {$_SERVER['PHP_SELF']}");    

  }

  // change cookie if GET parameter page exists
  if (isset($_GET['page'])) {
    setcookie("whichPage",$_GET['page']);
    header("Location: {$_SERVER['PHP_SELF']}");
  }
?>
<html>
<head>
<title>CookieWorks with RG Off</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<p>Testpage for index.php r_g = <?PHP echo $blnGlobals; ?></p>
<p><a href="<?PHP echo $strSelf; ?>?page=one">Link one</a></p>
<p><a href="<?PHP echo $strSelf; ?>?page=two">Link two</a></p>
<p><a href="<?PHP echo $strSelf; ?>?page=three">Link three</a></p>
<p><a href="<?PHP echo $strSelf; ?>?delcookie=true">delete cookie</a></p>
<pre>Cookies = <?php print_r ($_COOKIE); ?></pre>
<p>whichPage = <?php echo $strPage; ?></p>
<?PHP
  // display link if cookie exists
  if (isset($_COOKIE['whichPage'])) {
    echo "<p>link with actual cookie: <p><a href=\"$strSelf?page=$strPage\">Link $strPage</a></p>\n";
  }
?>
</body>
</html>

EDIT: I added a "delete cookie" link.

Thomas