Well, let's see what you're actually doing: 
$comment = "My lawyer is named will";

   for ($new = $comment) {
   $comment = &doit($comment);
   }

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Okay, this is probably not what you intend. This takes $new, and sets it equal to $comment. Then this is treated as a list (of 1 item), which is assigned to $_ in the for loop (the s// will by default work on $_), and then $comment is set equal to the result of doit(). 
   sub doit{
   $go = ";gie/moT/lliw/s ;gie/reknaB/reywal/s ;gie/yenraB/derf/s";

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This sets $go equal to that string. 
   $com = join("", reverse split(//, $go));

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This sets $com equal to the result of this. 
   return $com;
   }
   print $new;

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which is then returned ($new being set equal to that).

It seems you want to _run_ those searches against $new. You'll want an eval() statement to do that. (Why is left to your own twisted goals). I suggest you study the for() loop because I suspect you are misunderstanding what it is doing.

Update: eval() can be a security risk if you are running anything that can be affected by user input, particularly on a web page. I suggest you use perl's taint mode, and CGI.pm

In reply to Re: newkid confused by swiftone
in thread newkid confused: reverse then unreverse a string by caciqueman

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