How will query string be formatted

[eluser]bleu[/eluser]
[quote author="animatora" date="1331221744"][quote author="bleu" date="1331220958"]In My controller I want to use it in a fashion as
a condition

Code:

if($_GET["id5"]=="f123"){ }

[/quote]


Controller

Code:

public function my_method($id1, $id2, $id3)
{
   if($id1 == "string")
    // Some code here
}

[/quote]


Thanks but what if I want to use it in another method and I cannot send $id1 from my_method to that other method , I believe I will have to get it from the url.

How will I do that?