PHP sessions acting weird, current object appears in _session - php

Question

I have the following code:
<?php
session_start();
class Cinstaller {
function CInstaller() {
$this->templates["x"] = "";
}
function DoEvents() {
if ($_GET["x"]) {
$_SESSION["install"] = $_GET;
}
}
}
$install = new CInstaller();
$install->DoEvents();
print_r($_SESSION);
?>
On a certain server ( first time when i see something like this ) Php 5.2.17, running as CGI/FastCGI, it acts werid.
When i run test.php?x=y I get the following dump:
Array
(
[install] => Array
(
[x] => y
)
)
When I go back and I run test.php without any other parameters I get the following:
Array
(
[install] => Cinstaller Object
(
[templates] => Array
(
[x] =>
)
)
)
How the heck the string variable "install" from session turned into the object from current file ?

Answer 1

Note : OK..! Seems like you may be having some sort of other problem but as you said that changing names of variable and session solved your Problem so in order to consider this question solved..! Here I am going to post the same answer..!
Solution :
You should change your Variable and Session names to fix this problem there may be some sort of conflict at your server with use of same name for variable & Sessions..!

Answer 2

If you do:
$_SESSION["install"] = $_GET;
You will put on "install" session all content that you got by $_GET and the value of session will be an Array().
If you want jut the value of parameter "x" that was sent using GET method, try this:
$_SESSION["install"] = $_GET["x"];
And only the value of the "x" parameter will be in the session. Also, filter the value that you get by url:
$_SESSION["install"] = filter_var($_GET["x"], FILTER_SANITIZE_STRING);