<?php
/**
* Main file
*/
//AJAX requests only
//if ($_SERVER['HTTP_X_REQUESTED_WITH'] != 'XMLHttpRequest') {
// header("HTTP/1.0 404 Not Found");
// die();
//}
include 'includes/autoload.php';
$callback = null;
$response = '';
if (isset($_REQUEST['callback'])) {
$callback = trim($_REQUEST['callback']);
}
if (!isset($_REQUEST['expr'])) {
$response = 'Request error. No expression was given.';
} else {
$calc = new \Calculator\Calculator();
$response = $calc->solve(trim($_REQUEST['expr']));
}
$response = "{msg: {$response}}";
if ($callback) {
echo "{$callback}({$response})";
} else {
echo $response;
}
