DH_Alumni/overview.php

<?php


require_once 'general.php';
require_once 'vendor/autoload.php';

session_start();
if(!isset($_SESSION['user'])) {
    echo "Nicht angemeldet";
    http_response_code(401);
    exit;
}

$statement = getDatabase()->prepare("SELECT * from entries WHERE verify = 1");

if(!$statement->execute()) {
    echo "database Error";
}

$entries = $statement->fetchAll(PDO::FETCH_ASSOC);

if($_GET['export'] != null) {
    if($statement->rowCount() > 0){
        $delimiter = ";";
        $filename = "ehemalige_" . date('Y-m-d') . ".csv";

        //create a file pointer
        $f = fopen('php://memory', 'w');

        //set column headers
        $fields = array("ID", "Name", "E-Mail", "Abschlussjahrgang", "Geburtstag", "Email validiert", "Tätigkeit", "Eintragungsdatum");
        fputcsv($f, $fields, $delimiter);

        //output each row of the data, format line as csv and write to file pointer
        foreach ($entries as $entry) {
            $lineData = array($entry['id'], $entry['name'], $entry['mail'], $entry['year'], $entry['birthday'], $entry['verify'], $entry['vocation'], $entry['creation']);
            fputcsv($f, $lineData, $delimiter);
        }

        //move back to beginning of file
        fseek($f, 0);

        //set headers to download file rather than displayed
        header('Content-Type: text/csv');
        header('Content-Disposition: attachment; filename="' . $filename . '";');

        //output all remaining data on a file pointer
        fpassthru($f);
    }
    exit;
}

returnHeader();

?>

    <div class="flex flex-col">
        <div class="-my-2 overflow-x-auto sm:-mx-6 lg:-mx-8">
            <div class="py-2 align-middle inline-block min-w-full sm:px-6 lg:px-8">
                <div class="shadow overflow-hidden border-b border-gray-200 sm:rounded-lg relative space-y-32">

                    <div class="md:mt-6 top-0 right-0 absolute">
                        <a href="overview.php?export=true" class="bg-blue-500 px-2 py-2 text-lg font-semibold tracking-wider text-white rounded hover:bg-blue-600">als CSV exportieren</a>
                        <a href="logout.php" class="bg-blue-500 px-4 py-2 text-lg font-semibold tracking-wider text-white rounded hover:bg-blue-600">ausloggen</a>
                    </div>

                    <table id="overviewTable" class="display">
                        <thead>
                        <tr>
                            <th>Name</th>
                            <th>Tätigkeit</th>
                            <th>E-Mail Adresse</th>
                            <th>Jahrgang</th>
                            <th>Alter</th>
                            <th>Eintragung</th>
                        </tr>
                        </thead>
                        <tbody>
                        <?php



                        foreach ($entries as $entry) {
                            $age = date_diff(date_create($entry['birthday']), date_create('now'))->y;
                            $creationDate = date_create($entry["creation"]);
                            ?>
                            <tr>
                                <td><?php echo $entry["name"] ?></td>
                                <td><?php echo $entry["vocation"] ?></td>
                                <td><?php echo $entry["mail"] ?></td>
                                <td><?php echo $entry["year"] ?></td>
                                <td><?php echo $age ?></td>
                                <td><?php echo date_format($creationDate, "d.m.Y") ?></td>
                            </tr>
                            <?php
                        }
                        ?>
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>

    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script src="https://cdn.datatables.net/1.10.24/js/jquery.dataTables.min.js"></script>

    <script>
        $(document).ready(function () {
            $('#overviewTable').DataTable({
                language: {
                    url: 'https://cdn.datatables.net/plug-ins/1.10.24/i18n/German.json'
                }
            });
        });
    </script>

<?php

returnFooter();