Simple-Wishlist/include/listgenerator.php

<?php

include 'config/config.php';

function generateListItem($ListItemID, $ItemImage, $ItemTitle, $ItemLink, $ItemPrice, $ItemComment, $ItemReserved, $ItemDate)
{
  global $loggedin, $imagedir;

  $formatter = new NumberFormatter('de_DE',  NumberFormatter::CURRENCY);

  if (strlen($ItemComment) == 0) {
    $ItemComment = '&nbsp;';
  }

  echo ('
    <div class="col">
      <div class="card shadow-sm">
        <div class="card-header">
          <h5 class="card-title">' . $ItemTitle . '</h5>
        </div>
        <img src="' . $imagedir . '/' . $ItemImage . '" class="card-img-top">
        <div class="card-body">
          <p class="card-text">' . $ItemComment . '</p>
          <div class="row justify-content-end">
            <small class="text-muted text-end">' . $formatter->formatCurrency($ItemPrice / 100, 'EUR') . '</small>
          </div>
        </div>
        <div class="card-footer text-muted">
          <div class="d-flex justify-content-between">
            <div class="d-inline btn-group">
              <a href="' . $ItemLink . '"  class="btn btn-sm btn-outline-secondary" role="button" target="_blank">zum Anbieter</a>
              <button type="button" class="btn btn-sm ' . ($ItemReserved == true ? 'btn-outline-info' : 'btn-outline-secondary') . '" data-reserved="' . $ItemReserved . '" data-wishid="' . $ListItemID . '" data-bs-toggle="modal" data-bs-target="#reservationModal">' . ($ItemReserved == true ? 'Reservierung aufheben' : 'Reservieren') . '</button>');

  if($loggedin == true)
  {
    echo('    
              <button type="button" class="btn btn-sm btn-outline-danger" data-wishid="' . $ListItemID . '" data-bs-toggle="modal" data-bs-target="#deleteModal">Löschen</button>
              <button type="button" class="btn btn-sm btn-outline-secondary" data-wishid="' . $ListItemID . '" data-bs-toggle="modal" data-bs-target="#pushprioModal">Prio +</button>'
        );
  }
              
  echo('
            </div>
            <div class="d-inline">
              <small class="text-muted text-end">' . date('d.m.y', strtotime($ItemDate)) . '</small>
            </div>
          </div>
        </div>
      </div>
    </div>
  ');
}

function wishlistMainBuilder($ListID, $sortby)
{

  global $servername, $username, $password, $db;

  // Create connection
  $conn = new mysqli($servername, $username, $password, $db);

  // Check connection
  if ($conn->connect_error) {
    die('Connection failed: ' . $conn->connect_error);
  }

  $sql = 'SELECT title, description FROM lists WHERE ID = ' . $ListID;
  $result = $conn->query($sql);

  echo ('
    <section class="py-5 text-center container">
    <div class="row py-lg-5">
    <div class="col-lg-6 col-md-8 mx-auto">
    ');

  if ($result !== false && $result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
      echo ('
        <h1 class="fw-light">' . $row['title'] . '</h1>
        <p class="lead text-muted">' . $row['description'] . '</p>
        ');
    }
  } else {
    echo ('
    <div class="modal-dialog" role="document">
      <div class="modal-content rounded-4 shadow">
        <div class="modal-header p-5 pb-4 border-bottom-0">
          <h1 class="fw-bold mb-0 fs-2">Das tut mir leid...</h1>
          <p class="modal-title fs-5" >..aber diese Liste exisiert nicht. Möchten Sie eine neue anlegen ?</p>
        </div>

        <div class="modal-body p-5 pt-0">
          <form action="" method="POST">  
            <div class="form-floating mb-3">
              <input type="text" class="form-control rounded-3" id="listName" name="listName"  placeholder="Name der Liste">
              <label for="listName">Name der Liste</label>
            </div>
            <div class="form-floating mb-3">
              <input type="password" class="form-control rounded-3" id="listPassword" name="listPassword" placeholder="Password">
              <label for="listPassword">Password</label>
            </div>
            <div class="form-floating mb-3">
              <input type="text" class="form-control rounded-3" id="listDescription" name="listDescription" placeholder="Beschreibung">
              <label for="listDescription">Beschreibung</label>
            </div>
            <button class="w-100 mb-2 btn btn-lg rounded-3 btn-primary" name="listadd" type="submit">Absenden</button>
          </form>
        </div>
    </div>
    ');
  }

  echo ('
    </div></div></section>
    ');

  // End of Header Generator

  echo ('
    <div class="album py-5 bg-light">
    <div class="container">
    <div class="row row-cols-1 row-cols-sm-2 row-cols-md-3 g-3">
    ');

  $sort = 'id';

  switch ($sortby) {
    case 'price_asc':
      $sort = 'price ASC';
      break;
    case 'price_desc':
      $sort = 'price DESC';
      break;
    case 'date_desc':
      $sort = 'date DESC';
      break;
    case 'date_asc':
      $sort = 'date ASC';
      break;
    case 'random':
      $sort = 'RAND()';
      break;
    case 'priority':
      $sort = 'priority DESC';
      break;
  }

  $sql = 'SELECT ID, title, description, link, image, reserved, price, date FROM whishes WHERE whislist = ' . $ListID . ' ORDER BY ' . $sort;
  $result = $conn->query($sql);

  if ($result !== false && $result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
      generateListItem($row['ID'], $row['image'], $row['title'], $row['link'], $row['price'], $row['description'], $row['reserved'], $row['date']);
    }
  }

  echo ('
    </div></div></div>
    ');

  $conn->close();
}