note 21140 added to language.variables.scope
| From: | php-general at lists dot php dot net | Date: | Tue, 30 Apr 2002 17:14:57 +0000 |
| Subject: | note 21140 added to language.variables.scope | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-30020@lists.php.net to get a copy of this message | ||
Seems as though when a cookie is saved and referenced as a variable of the same name as the cookie,
that variable is NOT global. If you make a function ro read the value of the cookie, the cooke
variable name must be declared as a global.
example:
function ReturnCookie()
{
$cookieName = "Test_Cookie";
global $$cookieName;
if (isset($$cookieName))
{
echo ("$cookieName is set");
$returnvalue = $$cookieName;
}
else
{
$newCookieValue = "Test Value";
setcookie("$cookieName","$newCookieValue", (time() + 3153600));
echo ("made a cookie:" . $newCookieValue ."<BR>");
$returnvalue = $newCookieValue;
}
echo ("the cookie that was set is now $returnvalue <BR>");
return $returnvalue;
}
--
http://www.php.net/manual/en/language.variables.scope.php
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