Misafir adlı üyeden alıntı: mesajı görüntüle
<input type="hidden" name="image_routes[]" value="<?php echo $userfe['url']; ?>">
hata burada

checkbox olmalı bu hidden degil

<input type="checkbox" name="image_routes[<?php echo $userfe['url']; ?>]">
Hocam sanırım eksik atmışım html kısmını tekrardan gözden geçirebilirmisiniz? Normalde zaten bir tane checkbox var

<div class="media-list is-grid pb-50" data-plugin="animateList" data-animate="fade"
            data-child="li">
            <ul class="blocks blocks-100 blocks-xxl-4 blocks-xl-3 blocks-lg-3 blocks-md-2 blocks-sm-2"
              data-plugin="animateList" data-child=">li">
              <?php while($userfe = $yapistir -> fetch (PDO::FETCH_ASSOC)){ ?>
              <li>
                <div class="media-item">
                  <div class="checkbox-custom checkbox-primary checkbox-lg">
                    <?php array('$fotosec'); ?>
                    <input type="checkbox" class="selectable-item" id="media_1" name="fotosec[]" value="<?php echo $userfe['id']; ?>"/>
                    <label for="media_1"></label>

                  </div>
                  <div class="image-wrap">
                    <img class="image rounded" src="<?php echo '../../../'.$userfe['url']; ?>" alt="...">
                  </div>
                  <input type="checkbox" name="image_routes[<?php echo $userfe['url']; ?>]">
                  <div class="info-wrap">
                    <div class="dropdown">
                      <span class="icon wb-settings" data-toggle="dropdown" aria-expanded="false" role="button"
                        data-animation="scale-up"></span>
                      <div class="dropdown-menu dropdown-menu-right" role="menu">

                        <a class="dropdown-item" href="javascript:void(0)"><i class="icon wb-download" aria-hidden="true"></i>İndir</a>
                        <a class="dropdown-item" href="javascript:void(0)"><i class="icon wb-trash" aria-hidden="true"></i>Sil</a>
                      </div>
                    </div>
                    <div class="title">Lorem ipsum</div>
                    <div class="time"><?php echo $userfe['in_id']; ?> Numaralı Projeye Ait</div>
                    <div class="media-item-actions btn-group">
                      <button class="btn btn-icon btn-pure btn-default" data-original-title="Edit" data-toggle="tooltip"
                        data-container="body" data-placement="top" data-trigger="hover"
                        type="button">
                        <i class="icon wb-pencil" aria-hidden="true"></i>
                      </button>
                      <button class="btn btn-icon btn-pure btn-default" data-original-title="Download"
                        data-toggle="tooltip" data-container="body" data-placement="top"
                        data-trigger="hover" type="button">
                        <i class="icon wb-download" aria-hidden="true"></i>
                      </button>
                      <button class="btn btn-icon btn-pure btn-default" data-original-title="Delete"
                        data-toggle="tooltip" data-container="body" data-placement="top"
                        data-trigger="hover" type="button">
                        <i class="icon wb-trash" aria-hidden="true"></i>
                      </button>
                    </div>
                  </div>
                </div>
              </li>
            <?php } ?>
            </ul>
          </div>
Belirttiğiniz gibi yukarıda denedim fakat unlink işlemini hiç yapmamaya başladı.