I don't quite understand the problem here. The code you have doesn't show the use of the putts, so I assume your question is how to deal with it after?
When you use  on an input name, it now becomes an array. So instead of pulling scalar values from
$_POST['putts'], you instead pull an array. You can iterate this array using a loop, or do whatever you need to do. If you leave it with just , it will numerically increment them starting from 0, so the first submitted text field would be
$_POST['putts'], and all the way up to n - 1, where n is the number of fields you have used.
Also, in the future please wrap all code in [php][/php] or [code][/code] tags to make them readable.