Merhaba Arkadaşlar
Mysql veritabanımda 2 tabloyu inner join ile birleştirerek 4 ayrı kategoriden veriler çekip listeletiyorum ama veritabanımda veri yok ise hata veriyor, 1 tane veri varsa diğer 3 div tablolarında hatalar vererek gidiyor, veritabanımda ayrı kategorilere ait 4 tane veri var ise hata vermiyor, bu hatanın verme sebebi veritabanımda veri olmamasından, rowCount ile yapmaya çalıştım yapamadım, kod bloğum aşağıdaki gibi bu konuda yardımcı olabilirmisiniz,
teşekkürler

<div class="row gutter--15">
                            <?php
                            $sor=$db->prepare("SELECT * from blog inner join blogkategori on blog.kategori=blogkategori.id ORDER BY rand() limit 4");
                            $sor->execute();
                            $cek=$sor->fetchAll(PDO::FETCH_ASSOC);
                            ?>
                            <div class="col-md-6">
                                <div class="post--item post--layout-1 post--title-larger">
                                    <div class="post--img">
                                        <a title="<?php echo $cek[0]['kadi'];?>" href="blog-details/<?php echo $cek[0]['seo'];?>" class="thumb"><img src="/uploads/bloglar/<?php echo $cek[0]['kapak'];?>" alt="<?php echo $cek[0]['adi'];?>"></a>
                                        <a title="<?php echo $cek[0]['kadi'];?>" href="#" class="cat"><?php echo $cek[0]['kadi'];?></a>
                                        <div class="post--info">
                                            <ul class="nav meta">
                                                <li><a href="#"><?php echo $cek[0]['tarih'];?></a></li>
                                            </ul>
                                            <div class="title">
                                                <h2 class="h4">
                                                    <a href="blog-details/<?php echo $cek[0]['seo'];?>" class="btn-link"><?php echo $cek[0]['adi'];?></a>
                                                </h2>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </div>

                            <div class="col-md-6">
                                <div class="row gutter--15">

                                    <div class="col-xs-6 col-xss-12">
                                        <div class="post--item post--layout-1 post--title-large">
                                            <div class="post--img">
                                                <a title="<?php echo $cek[1]['adi'];?>" href="blog-details/<?php echo $cek[1]['seo'];?>" class="thumb"><img src="/uploads/bloglar/<?php echo $cek[1]['kapak'];?>" alt="<?php echo $cek[1]['adi'];?>"></a>
                                                <a title="<?php echo $cek[1]['kadi'];?>" href="#" class="cat"><?php echo $cek[1]['kadi'];?></a>
                                                <div class="post--info">
                                                    <ul class="nav meta">
                                                        <li>
                                                            <a href="#"><?php echo $cek[1]['tarih'];?></a>
                                                        </li>
                                                    </ul>
                                                    <div class="title">
                                                        <h2 class="h4">
                                                            <a title="<?php echo $cek[1]['adi'];?>" href="blog-details/<?php echo $cek[1]['seo'];?>" class="btn-link"><?php echo $cek[1]['adi'];?></a>
                                                        </h2>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                    </div>

                                    <div class="col-xs-6 hidden-xss">
                                        <div class="post--item post--layout-1 post--title-large">
                                            <div class="post--img">
                                                <a title="<?php echo $cek[2]['adi'];?>" href="blog-details/<?php echo $cek[2]['seo'];?>" class="thumb"><img src="/uploads/bloglar/<?php echo $cek[2]['kapak'];?>" alt="<?php echo $cek[2]['adi'];?>"></a>
                                                <a title="<?php echo $cek[2]['kadi'];?>" href="#" class="cat"><?php echo $cek[2]['kadi'];?></a>
                                                <div class="post--info">
                                                    <ul class="nav meta">
                                                        <li><a href="#"><?php echo $cek[2]['tarih'];?></a></li>
                                                    </ul>
                                                    <div class="title">
                                                        <h2 class="h4">
                                                            <a title="<?php echo $cek[2]['adi'];?>" href="blog-details/<?php echo $cek[2]['seo'];?>" class="btn-link"><?php echo $cek[2]['adi'];?></a>
                                                        </h2>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                    </div>

                                    <div class="col-sm-12 hidden-sm hidden-xs">
                                        <div class="post--item post--layout-1 post--title-larger">
                                            <div class="post--img">
                                                <a title="<?php echo $cek[3]['adi'];?>" href="blog-details/<?php echo $cek[3]['seo'];?>" class="thumb"><img src="/uploads/bloglar/<?php echo $cek[3]['kapak'];?>" alt=""></a>
                                                <a title="<?php echo $cek[3]['kadi'];?>" href="#" class="cat"><?php echo $cek[3]['kadi'];?></a>
                                                <div class="post--info">
                                                    <ul class="nav meta">
                                                        <li><a href="#"><?php echo $cek[3]['tarih'];?></a></li>
                                                    </ul>
                                                    <div class="title">
                                                        <h2 class="h4">
                                                            <a title="<?php echo $cek[3]['adi'];?>" href="blog-details/<?php echo $cek[3]['seo'];?>" class="btn-link"><?php echo $cek[3]['adi'];?></a>
                                                        </h2>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                    
                                </div>
                            </div>
                        </div>