basit bi stok takip scripti yapmaya calısıyorum. php konusunda henüz çok yeniyim hata alıyorum.
<?php include("config.php"); 
if(isset($_POST)){ 
    
    
if($_FILES["StokPic"]["type"]=="image/jpeg"){
$resimadi= $_FILES["StokPic"]["name"]; 
$StokCode = $_POST["StokCode"]; 
    $a = $_POST["36"];
    $b = $_POST["37"];
    $c = $_POST["38"];
    $d = $_POST["39"];
    $e = $_POST["40"];
    $f = $_POST["41"];
    $g = $_POST["42"];
    $h = $_POST["43"];
    $j = $_POST["44"];
    $k = $_POST["45"];
    
    
$resim=explode(".",$resimadi); 
$uzantisi=$resim[1]; 
$yeni=md5($resim[0]); 
$yeniad="uploads/".$yeni.".".$uzantisi; 
if(move_uploaded_file($_FILES["StokPic"]["tmp_name"],$yeniad)){ 


$sql=$db->prepare("INSERT INTO stok (StokPic,StokCode,36,37,38,39,40,41,42,43,44,45) VALUES (?,?,?,?,?,?,?,?,?,?,?,?)"); 
$sql->execute(array($yeniad,$StokCode,$a,$b,$c,$d,$e,$f,$g,$h,$j,$k)); 
$hata = $sql->errorInfo(); 
echo empty($hata[2]) ? "Basarili Bir sekilde Eklendi." : $hata[2]; 

}else 

{ echo "Resim YUklenemedi"; 

}
} else { echo "Dosya Tipiniz Jpeg olmalsdir";} 

}
?>

<!doctype html>
<html lang="tr">
  <head>

 </head>
 <body>
       
   
    <form action="" method="post" enctype="multipart/form-data">
        
        ürün görseli <input type="file" class="custom-file-input" id="StokPic" name="StokPic">
                                            <br><br>
        
       STok kod <input type="text" name="StokCode" placeholder="StokCode"><br><br>
        36
        <input type="text" name="36" placeholder="adet"><br><br>
        37
        <input type="text" name="37" placeholder="adet"><br><br>
        38
        <input type="text" name="38" placeholder="adet"><br><br>
        39
        <input type="text" name="39" placeholder="adet"><br><br>
        40
        <input type="text" name="40" placeholder="adet"><br><br>
        41
        <input type="text" name="41" placeholder="adet"><br><br>
        42
        <input type="text" name="42" placeholder="adet"><br><br>
        43
        <input type="text" name="43" placeholder="adet"><br><br>
        44
        <input type="text" name="44" placeholder="adet"><br><br>
        45
        <input type="text" name="45" placeholder="adet"><br><br>
        
    <button type="submit" class="btn btn-primary">
                                        Ekle
                                    </button>
     
     
     
    
     
    </form>
     
     
     
  </body>


</html>
aldığım hata