Comment MySQL a quitté la variable de jointure et écho à la boucle de Foreach

Amis J'essaie de rejoindre MySQL Rejoignez la requête sur PHP et j'ai besoin d'une aide peu. Je ne peux pas interroger comme objet PHP, si je requête objet, la requête était vide: $ données = $ catégories-> fetchall (PDO :: fetch_obj);

Comment puis-je interroger comme objet PHP? P>

<?php
$categories = $vt->prepare("SELECT t1.baslik AS lev1, t2.baslik as lev2, t3.baslik as lev3, t4.baslik as lev4
FROM menuler AS t1
LEFT JOIN menuler AS t2 ON t2.katID = t1.id
LEFT JOIN menuler AS t3 ON t3.katID = t2.id
LEFT JOIN menuler AS t4 ON t4.katID = t3.id WHERE t1.katID=?");

foreach ($listeSonuc as $listele) {
    # code...
 }

$categories->execute(array($listele->katID));
$data=$categories->fetchAll(PDO::FETCH_ASSOC);
$categoriesResult = array_map(function($item){
    return (object)array_combine(['lev1', 'lev2', 'lev3', 'lev4'], $item);
},$data);

// code begins here
$newData = [];
foreach ($categoriesResult as $row) {
    $tree = get_object_vars($row);
    do {
        $title = array_pop($tree);
    } while($title === null);
    $catTree = implode(' > ', $tree);
    $newData[] = (object)[
        'title' => $title,
        'tree'  => $catTree
    ];
}?>
<div class="table">
        <div>
            <div class="th">Başlık</div>
            <div class="th kucukteldegizle">Bölüm</div>
            <div class="th kucukteldegizle">Özellik</div>
            <div class="th kucukteldegizle">Yayınla?</div>
            <div class="th text-right">Ä°ÅŸlem</div>              
        </div>

<?php foreach ($newData as $row) {?>
        <div class="cizgili">
            <div class='bosluk'><?php echo $row->title?></div>
            <div class="kucukteldegizle"><?php echo $row->tree?></div>
            <div class="kucukteldegizle">???</div>
            <div class="kucukteldegizle">???</div>
            <div>???</div>
        </div>
<?php }?>
</div>