ljapkin-roman/php-project-lvl1

<?php
namespace Ogurchik\Games\calculator;
use function Ogurchik\Engine\engine;

const DESCRIPTION = 'What is the result of the expression?';
const OPERATORS = ["+", "-", "*"];

function launch()
{
        $generateData = function () {
            $firstOperand = rand(1, 50);
            $secondOperand = rand(1, 50);
            $operator = OPERATORS[rand(0, count(OPERATORS) - 1)];
            switch ($operator) {
                case "+":
                    $correctAnswer = $firstOperand + $secondOperand;
                    break;
                case "-":
                    $correctAnswer = $firstOperand - $secondOperand;
                    break;
                case "*":
                    $correctAnswer = $firstOperand * $secondOperand;
                    break;
            }
            $data['question'] = "$firstOperand $operator $secondOperand";
            $data['correctAnswer'] = (string)$correctAnswer;
            return $data;
        };
        engine(DESCRIPTION, $generateData);
}