SQL
CREATE TABLE `urunler` ( `urun_id` int(11) NOT NULL, `urun_ozellikler` varchar(110) COLLATE utf8_turkish_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_turkish_ci; INSERT INTO `urunler` (`urun_id`,`urun_ozellikler`) VALUES ( 65,'2,3'); CREATE TABLE `ozellikler` ( `o_id` int(11) NOT NULL, `o_baslik` varchar(455) COLLATE utf8_turkish_ci NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_turkish_ci; INSERT INTO `ozellikler` (`o_id`, `o_baslik`) VALUES (2, 'Deneme1'), (3, 'Deneme2');
$urunsor=$db->prepare("SELECT * from urunler where urun_id=:UrunId");
$urunsor->execute(array('UrunId' => $_GET['oda_id']));
$uruncek=$urunsor->fetch(PDO::FETCH_ASSOC);
$ozellikAsk=$db->prepare("SELECT * from ozellikler where o_id=:o_id");
<ul class="list-unstyled page-list mb-30">
<?php
$ozellikAsk->execute(array(
'o_id' => $uruncek['urun_ozellikler']
));
while ($ozellikCheck=$ozellikAsk->fetch(PDO::FETCH_ASSOC)){
$tags = explode(",",$uruncek['urun_ozellikler']);
?>
<li>
<div class="page-list-icon"> <span class="flaticon-group"></span> </div>
<div class="page-list-text">
<p><?php echo '<pre>'; print_r ($tags); echo '</pre>'; ?> </p>
</div>
</li>
<?php }?>
</ul>