Post ettikten sonra değeri yakalayamıyorum

      <form method="POST" action="satin-al/<?=$urun['sef']?>">
                        <div class="product-detail">
                            <ul class="tab-areas" style="margin-top: 7px;">
                                <?php
                          $query = $db->query("SELECT * FROM urun_secenek WHERE urun_id = '{$urun['id']}' ORDER BY id ASC", PDO::FETCH_ASSOC);
                          if($query->rowCount()){
                            foreach( $query as $row ){
                        ?>
                    <h4>
                        <p style="color:forestgreen;"><?php echo $row['baslik']; ?></p>
                    </h4>
                 <?php
                    $query1 = $db->query("SELECT * FROM urun_secenek_alt WHERE urun_secenek_id = '{$row['id']}' ORDER BY id ASC", PDO::FETCH_ASSOC);
                    if($query1->rowCount()){
                    foreach( $query1 as $row1 ){ ?>
                        <input type="hidden" name="secenek" value="" id="secenek">
                                <li class="ozel" data-secenek="<?php echo $row1['baslik'] ?>">
                                <h3><?php echo $row1['stok'] ?> Adet <?php echo $row1['baslik'] ?>
                                </h3>
                                    <span class="price"><?php echo $row1['fiyat'] ?> TL</span>
                                </li>
                                    <?php } } } }?>
                            </ul>
                            <ul class="order-areas">
                                <li class="sepete-ekle">
                                    <input type="image" src="assets/media/cache/73/2c/732c93531071f2bff1b5e5383834ddf1.jpg" value="submit" width="500">
                                </li>
                            </ul>
                        </div>
                        </form>

 <script type="text/javascript">
        $(document).ready(function() {
   
    $('.ozel').click(function () {

        $('.ozel').removeClass('active');
        var degisken = $(this);
        var secenek = degisken.addClass('active').attr('data-secenek');
        var veri = secenek;
        console.log(veri)
        $("#secenek").val(secenek);
        return false;
    });

});
    </script>