Hi,

I have a query string parameter that has a dot in it. For example, `a.b`. I need to write this parameter to my log file. How do I reference it?

I've tried `$arg_a.b` but that prints `-.b` (ie, it prints the value of $arg_a which is - followed by .b)

I've also tried `$arg_a_b` but that just prints `-` since there is no parameter a_b or a-b.

What should I do?