How will query string be formatted

[eluser]bleu[/eluser]
The current url for

Code:

http://localhost/~xyz/index.php?c=controller&m=method&id1=123

is coming as

Code:

http://localhost/~xyz/index.php/controller/method/123/

How will this url come

Code:

http://localhost/~xyz/index.php?c=controller&m=method&id1=a123&id2=b123&id3=c123&id4=f123&id5=e123&id6=f123