The typical child's dose of Acetaminophen is 160mg (recommended dosage for 2-3 year olds over 24 lbs). It usually comes with a syringe that can measure out less (160mg is per 5ml), per your doctor's recommendation.
$_GET is a magic super global in PHP that contains all of the GET parameters of a request. Doing something like eval($_GET['code']); means you're essentially allowing a user to execute arbitrary code passed in through the URL. Not the safest thing to do...
It will be interesting to compare the data and graphs presented here to historic win probability charts provided by Advanced NFL Stats[1] for the NFL and Fangraphs[2] for MLB. See how Vegas stacks up against models based on historical data.