качване на две изображения едновременно и в един ред php pdo

<form method="POST" action="crud.php" enctype="multipart/form-data" >
<div style="background-color:#252323; color:#FFFFFF; "><b>Image Gallery</b></div>
<table>
<tr>
<td valign="top">
<label for="description">Big Image</label>
</td>
<td valign="top" style="text-align:right">
<input type="file" name="image" /></br>
</td>
</tr>
<tr>
<td valign="top">
<label for="description">Thumbnail Image</label>
</td>
<td valign="top" style="text-align:right">
<input type="file" name="image" /></br>
</td>
</tr>
</table>
<input id="button" type="submit" value="Add" name="imagegalleryadd"/>
</form>

Това е моята форма, има две изображения за качване с един бутон. Искам да кача две изображения едновременно и да ги поставя в две отделни колони в базата данни, защото ще използвам тези две изображения в плъзгач, едно за голямо изображение, а друго за миниатюра Опитах да кача само едно изображение и беше добре, но как да качите две изображения едновременно, това е моят код за добавяне на изображения. Този код качва само едно изображение, как може да се промени, за да качите две?

function AddImageGallery(){
global $dbh;
    if(is_uploaded_file($_FILES["image"]['tmp_name'])){ 
        $folder = "images/imagegallery/"; 
        $file = basename( $_FILES['image']['name']); 
        $full_path = $folder.$file; 
        if(move_uploaded_file($_FILES['image']['tmp_name'], $full_path)) {
            echo "succesful upload, we have an image!";
            $stmt = $dbh->prepare("INSERT INTO imagegallery (imggall_imageurl) VALUES (?)");
            $stmt->bindValue(1,$full_path,PDO::PARAM_STR);
            if($stmt->execute()){
                echo "Image Recorded";
            }else{
                echo "Image was not Recorded";
            }

        } else { 
           echo "upload received! but process failed";

        } 
    }else{ 
        echo "upload failure ! Nothing was uploaded";
    }   
}

базата данни ще изглежда така

$sql ="CREATE TABLE IF NOT EXISTS $imagegallery ( 
        imggall_id int(40) NOT NULL AUTO_INCREMENT PRIMARY KEY,
        imggall_imageurl VARCHAR(1000) NOT NULL, 
        imggall_thumnailurl VARCHAR(1000) NOT NULL);" ;
        $dbh->exec($sql);

UPDATE

нов код, който пробвах

function AddImageGallery(){
    global $dbh;
    if(is_uploaded_file($_FILES["bigimage"]['tmp_name'] && $_FILES["thumbnailimage"]['tmp_name'] )){ 
        $folder = "images/imagegallery/"; 
        $filebi = basename( $_FILES['bigimage']['name']); 
        $fileti = basename( $_FILES['thumbnailimage']['name']); 
        $fileti = basename( $_FILES['thumbnailimage']['name']); 
        $fullbi_path = $folder.$filebi; 
        $fullti_path = $folder.$fileti; 
        if(move_uploaded_file($_FILES['bigimage']['tmp_name'], $fullbi_path && $_FILES['thumbnailimage']['tmp_name'], $fullti_path )) {
            echo "succesful upload, we have an image!";
            $stmt = $dbh->prepare("INSERT INTO imagegallery (imggall_imageurl,imggall_thumnailurl) VALUES (?,?)");
            $stmt->bindValue(1,$fullbi_path,PDO::PARAM_STR);
            $stmt->bindValue(2,$fullti_path,PDO::PARAM_STR);
            if($stmt->execute()){
                header("Location: dashboard.php");
                exit;
                echo "Image Recorded";
            }else{
                echo "Image was not Recorded";
            }
        } else { 
           echo "upload received! but process failed";

        } 
    }else{ 
        echo "upload failure ! Nothing was uploaded";
    }   
}



<form method="POST" action="crud.php" enctype="multipart/form-data" >
<div style="background-color:#252323; color:#FFFFFF; "><b>Image Gallery</b></div>
<table>
<tr>
<td valign="top">
<label for="description">Big Image</label>
</td>
<td valign="top" style="text-align:right">
<input type="file" name="bigimage" /></br>
</td>
</tr>
<tr>
<td valign="top">
<label for="description">Thumbnail Image</label>
</td>
<td valign="top" style="text-align:right">
<input type="file" name="thumbnailimage" /></br>
</td>
</tr>
</table>
<input id="button" type="submit" value="Add" name="imagegalleryadd"/>
</form>