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Posted by Jerry Stuckle on 08/25/07 15:59
rob.selway@gmail.com wrote:
> Hello,
>
> I've written a website using PHP4/Mysql. The login function (that
> creates 2 or 3 sessions) does not seem to work in IE, but does in
> FireFox.
> The strange thing is that when I lower the privacy level in IE it
> works. I can then then set the privacy level back to the original
> level and it will then work also. I can then set the privacy level two
> levels down from 'Block all cookies' and it will still work.
>
> This is how the sessions are set:
>
> session_register("username");
>
> Is this just a problem with IE or must i rewrite code so it will work
> with IE?
>
> Thanks very much,
>
First of all, you don't have "2 or 3 sessions". You have one session
for a browser at a time. You may have multiple variables in the
session, though.
Next, don't use session_register - it's been deprecated. Rather, you
should use the $_SESSION superglobal (and put session_start() at the
beginning of every page using sessions).
As to IE operation - PHP by default uses a cookie to keep track of the
session id. If the browser doesn't accept cookies, you will have a
problem. This is true for not only IE, but any browser.
This is controlled by two settings in your php.ini file:
session.use_cookies indicates whether PHP should use cookies to keep the
session_id. If it is on, PHP will try to use a cookie to keep track of
the session id. If it's off, PHP will append the session id to the URL,
i.e. http://www.example.com?PHPSESSIONID=1234567890
session.use_only_cookies specifies whether to use only cookies (if
session.use_cookies is on). If it is on, PHP will only use cookies. If
it is off, PHP will try to use cookies first, and if not possible, fall
back to the URL modification method mentioned above.
Your behavior is indicative of both of these being turned on.
As to why it works after lowering/raising the privacy level, it probably
will return a cookie, but not accept a new one.
--
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Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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