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session_set_cookie_params (int lifetime [, string path [, string domain [, bool secure]]])

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junkmail at fluidideas dot com
22-Feb-2001 12:33
ok. hope this works. first time posting

heres a quick little snippet I came up with to pass sessions between lots of sub domains or c names. it also contains an array walker for reading and outputting the contents of the current array(in this case i use it for http_session_vars)

ex:
www.fluidideas.com
chat.fluidideas.com
mypage.fluidideas.com
www.mypage.fluidideas.com
these will all have access to the session.

!!!BEGIN CUT!!!

session_set_cookie_params ( time()+9999999 , "" , ".fluidideas.com" );

if ( $HTTP_COOKIE_VARS[session_id_set] )
{ session_id( $HTTP_COOKIE_VARS[session_id_set] ); }
session_start ();
Function session_walker($Array)
{
If ( !Is_Array($Array) ) Return $Array;
Reset($Array);
While( List( $Key, $Value ) = Each( $Array ) )
{
If ( Is_Array( $Array[ $Key ] ) )
{
$Array[ $Key ] = session_walker( $Array[ $Key ] );
}
Else
{
echo "key -> " . $Key . "
\n";
echo "value -> " . $Value . "
\n";
}
}
Return $Array;
}

!!!END CUT FOR SESSION INCLUDE!!!
!!!BEGIN CUT!!!

$user_session_id = session_id();
setcookie("session_id_set","$user_session_id",time()+9999999,"", ".fluidideas.com", "");

session_register("user");
session_register("password");
session_register("email");

!!!END CUT FOR LOGIN!!!

now this example will allow the session to carry the data from sub domain to sub domain and it only has one flaw that i've noticed. NS 4.7 is the only browser I've seen this in (also use mozilla .8 and IE5.5) but if the domain doesnt contain a c name the sessions wont pass.

ex: fluidideas.com not www.fluidideas.com

If someone can come up with a fix to this please email me. Thanks

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gavin_spam at skypaint dot com
26-Feb-2002 03:58
The first argument to session_set_cookie_params is the number of seconds in the future (based on the server's current time) that the session will expire. So if you want your sessions to last 100 days:

$expireTime = 60*60*24*100; // 100 days
session_set_cookie_params($expireTime);

I was using time()+$expireTime, which is WRONG (a lot of the session_set_cookie_params() examples I found get this wrong, but probably don't care because they are just doing "infinite" sessions).

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steve at saturn5 dot com
16-Jun-2002 04:54
session_set_cookie_params didn't work at all, no matter how many times we yelled at the computer. we wanted to update the session expiry time after login, so we used setcookie instead, right after session_start:

$expiry = 60*60*24*100; // 100 days

session_start();
setcookie(session_name(), session_id(), time()+$expiry, "/");

if you can't get session_set_cookie_params to work, i recommend using setcookie instead. (yes, you need time()+$expiry when using setcookie.)

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