31.77 Obesity 162.6 centimeter 84 kilograms 5 feet 4 inches 185.19 pounds . Example 3: GET bmi.json returns { "bmi": 31.77, "message": "Obesity", "metric": { "height": "162.6 centimeter", "weight": "84 kilograms" }, "imperial": { "height": "5 feet 4 inches", "weight": "185.19 pounds" } } . */ require_once '../../restler/restler.php'; #set autoloader #do not use spl_autoload_register with out parameter #it will disable the autoloading of formats spl_autoload_register('spl_autoload'); $r = new Restler(); $r->setSupportedFormats('JsonFormat', 'XmlFormat'); $r->addAPIClass('BMI'); $r->handle();