PHP - Problems Managing Data From A Single Field

/*I'm trying to use dropzone js plugin for drag/drop single phote but it require me to create another form for file upload, but i want to use single form for both image and name input, i have no idea on how to combine this field in sinle request, the form to submit both image and name look like*/
<form method="POST" enctype="multipart/form-data">
<input type="text" name="name" id="name">
<!--how to replace this field with dropzone but in this form in order to use the same ajax as below-->
<input type="file" name="photo" id="photo">
<button type="submit">send</button>
</form>


//ajax, how to add dropzone data in
$("form").on('submit', function(e) {
        $.ajax({
            url: 'add.php',
            type: 'POST',
            data: new FormData(this),
            dataType: 'JSON',
            contentType: false,
            cache: false,
            processData:false,
        }).done( function (data) {
            
            if(data.success == false) { //for error message response

                if(data.errors.name) {
                    $('#name').append('<span class="text-danger">' + data.errors.name + '</span>');
                }
				if(data.errors.photo) {
                    $('#photo').append('<span class="text-danger">' + data.errors.photo + '</span>');
                }

			}
        });
        e.preventDefault();
    });
  

if(isset($_POST['submit']) && ($_POST['vendor']!='') && ($_POST['item']!=''))
{
$sql="SELECT supplier.id AS sid, supplier.name AS SNAME, supplier.category, supplier.website, supplier.email, supplier.phone, supplier.vat, supplier.pan, supplier_location.id, supplier_location.supplier_id, supplier_location.location, supplier_products.id, supplier_products.supplier_id, supplier_products.product_id, location.loc_id, location.name AS locname, products.product_id, products.name AS pname FROM supplier INNER JOIN supplier_location ON supplier.id = supplier_location.supplier_id INNER JOIN supplier_products ON supplier.id=supplier_products.supplier_id INNER JOIN location ON supplier_location.location = location.loc_id INNER JOIN products ON supplier_products.product_id=products.product_id WHERE supplier.id=".$sup." AND supplier_products.product_id=".$product;
$sql1 = mysql_query($sql) or die(mysql_error());


<table>
<thead><tr>
<th>Vendor ID</th>
<th>Vendor</th>
<th>Category</th>
<th>Website</th>

<th>Email</th> 

<th>Phone</th>
<th>Products</th>
<th>Locations</th>
 <th>VAT</th>
  <th>PAN</th>
                        
                       
                        


</tr>


</thead>
<tbody> 


<tr>
<?php
while($row = mysql_fetch_array($sql1))
{ 


?>
   
   
    <td><?php echo $row['sid'] ?></td>
<td><?php echo $row['SNAME'] ?></td>
    <td><?php echo $row['category'] ?></td>
    <td><?php echo $row['website'] ?></td>
     <td><?php echo $row['email'] ?></td>
    <td><?php echo $row['phone'] ?></td>
    <td><?php echo $row['iname']; ?></td>


    <td><?php echo $row['locname']; ?></td>


    <td><?php echo $row['vat'] ?></td>
    <td><?php echo $row['pan'] ?></td>




</tr>


<?php 




}
?>
</tbody></table>


}