Apply variables from variable

[alirezaok]

hi

i want to apply url string to my page not by from adress bar of browser
(not : http://www.mysite.com/index.php?p=1&r=3&t=1)

i want apply it from one variable that has this url string:

like as:

adressbar: http://www.mysite.com/index.php

$st="?p=1&r=3&t=1";
// here i must access to $p,$r,$t,...

is there any way to do it?

[NeedaCart]

if you mean you want to get the first part "www.mysite.com/index.php" $_SERVER['PHP_SELF'] will do that and not get the rest.

[alirezaok]

no no
in other mean i have a varibale like as this:

$st="?p=1&r=3&t=1"; 
// here i must can run: echo $r;
// and it must print 3

i think first remove ? char form string
then use of explode by =
and .... ?

[laserlight]

Perhaps you want to use [man]parse_str/man?

[alirezaok]

oh exactly. what a good function was. thanks