Cofem/lib/newsarticle.php

<?php

function getNewsArticles() :array
    {
        global $mysqli;

        $output = ["Status" => "Fail"]; // Default Status is "Fail"

        $articles = [];
        if (isLoggedIn()) {
            $stmt = $mysqli->prepare("SELECT NewsArticles.ID, NewsArticles.WrittenAt, NewsArticles.WrittenBy, NewsArticles.Title, NewsArticles.Body, NewsArticles.FileList, Users.Nickname FROM NewsArticles INNER JOIN Users ON NewsArticles.WrittenBy = Users.ID; ");

            $id = 0;
            $writtenAt = "";
            $writtenBy = 0;
            $title = "";
            $body = "";
            $filelist = 0;
            $writtenByName = "";

            $stmt->bind_result($id, $writtenAt, $writtenBy, $title, $body, $filelist, $writtenByName);

            $stmt->execute();

            while ($stmt->fetch()) {
                $articles[] = [
                    'ID' => $id,
                    'WrittenAt' => $writtenAt,
                    'Title' => $title,
                    'Body' => $body,
                    'WrittenByName' =>$writtenByName
                ];
            }

            // Check if any results were fetched
            if (!empty($articles)) {
                $output["Status"] = "Success";
                $output["Articles"] = $articles;
            }

        }

        return $output;
}

function addNewsArticle($title="Nazov", $body="Obsah") :array
{
    global $mysqli;

    $output = ["Status" => "Fail"]; // Default Status is "Fail"
    if (isLoggedIn()) {
        $query = $mysqli->prepare("INSERT INTO NewsArticles (WrittenBy, Title, Body, FileList) VALUES (?, ?, ?, 0);");
        $query->bind_param("iss", $_SESSION["id"], htmlspecialchars($title), htmlspecialchars($body));
        $query->execute();
        if ($query->affected_rows > 0) {
            $output["Status"] = "Success";
        }
    }
    $query->close();
    return $output;
}