eval problem

Hello, Could someone offer some insight on eval(); I am fairly new at this. I would like to evaluate numerous variables from a form submission with a loop, but I can;t even get on to work: I.e. He are the variables from my form wins_1=7 losses_1=0 sort_1=1 wins_2=7 losses_2=4 sort_2=2 wins_3=7 losses_3=4 sort_3=3 I am trying to evaluate the values based on a loop. Here's my current method $counter=1; $wins=eval("\$wins_".$counter); $wins should return 7 in this example. Where am I going wrong? Any help would be appreciated. Thanks, Greg