<?php require 'calcSalary.php'; $salary = $_GET["salary"]; $inss = calc::calcInss($salary); $salary -= $inss; $irpf = calc::calcIrpf($salary); $salary -= $irpf; $result = array('salary' => $salary, 'inss' => $inss, 'irpf' => $irpf); echo json_encode($result);