note 14077 modified in function.setcookie by john
| From: | john@php.net | Date: | Sat, 30 Nov 2002 16:20:57 +0000 |
| Subject: | note 14077 modified in function.setcookie by john | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-40159@lists.php.net to get a copy of this message | ||
[Editor's Note: setcookie() automatically calls urlencode/decode -- doing it manually is
unnecessary]
To store an object as a cookie, I use the following:
function object_to_cookie($obj)
{
$z = serialize($obj);
$z = gzcompress($z);
$z = base64_encode($z);
$z = urlencode($z);
return $z;
}
function cookie_to_object($cookie)
{
$z = urldecode($cookie);
$z = base64_decode($z);
$z = gzuncompress($z);
$z = unserialize($z);
return $z;
}
I don't think the urlencode()/urldecode() is strictly necessary (I only use it because
'/' is part of the base64 alphabet and I'm paranoid). But this works well, and allows
you to encode a lot of information into a single cookie instead of using multiple cookies; you can
have something like a UserPrefs object that encapsulates all user-specific information, and set that
as a single cookie.
--was--
To store an object as a cookie, I use the following:
function object_to_cookie($obj)
{
$z = serialize($obj);
$z = gzcompress($z);
$z = base64_encode($z);
$z = urlencode($z);
return $z;
}
function cookie_to_object($cookie)
{
$z = urldecode($cookie);
$z = base64_decode($z);
$z = gzuncompress($z);
$z = unserialize($z);
return $z;
}
I don't think the urlencode()/urldecode() is strictly necessary (I only use it because
'/' is part of the base64 alphabet and I'm paranoid). But this works well, and allows
you to encode a lot of information into a single cookie instead of using multiple cookies; you can
have something like a UserPrefs object that encapsulates all user-specific information, and set that
as a single cookie.
http://www.php.net/manual/en/function.setcookie.php