totalRecords.php

<?php

require_once 'lib/includes/utilities.inc.php';

use website_project\trivia_game\Trivia;

/* Makes it so we don't have to decode the json coming from JQuery */
header('Content-type: application/json');

$trivia = new Trivia();

$submit = htmlspecialchars($_POST['submit']);
if (isset($submit)) {
    $category = htmlspecialchars($_POST['category']);
    $modify = htmlspecialchars($_POST['modify']);

    if ($modify === 'edit_entry') {
        $data = $trivia->categories($category);
        output($data);
    } else {
        $data = ['status' => 'new', 'category' => $category, 'total' => 0];
        output($data);
    }
}

function errorOutput($output, $code = 500) {
    http_response_code($code);
    echo json_encode($output);
}

/*
 * If everything validates OK then send success message to Ajax / JavaScript
 */

function output($output) {
    http_response_code(200);
    echo json_encode($output);
}