passing two arrays in foreach - json

Question

passing ajax posting values in php laravel controller only one selected dropdown options array values are inserted so required two arrays of two selected drop list values to be inserted
get array of values
'$.ajax({
dataType: 'json',
url: "/getCity/"+id,
type: "GET",
success: function (data) {
console.log(data);
$('select[name="GLNO[]"]').empty();
$.each(data, function(key,data){
$('select[name="GLNO[]"]').append('<option value="'+ data.GLNO +'">'+ data.GLNO +'</option>');
});
$('select[name="NAME[]"]').empty();
$.each(data, function(key,data){
$('select[name="NAME[]"]').append('<option value="'+ data.NAME +'">'+ data.NAME +'</option>');
});
``
post array of values
$('#ProductForm').submit(function(e) {
e.preventDefault();
var formData = new FormData(this);
$.ajax({
type: 'POST',
url: "{{ url('store-product') }}",
data: formData,
cache: false,
contentType: false,
processData: false,
success: (data) => {
$("#product-modal").modal('hide');
var oTable = $('#products').dataTable();
oTable.fnDraw(false);
$("#btn-save").html('Submit');
$("#btn-save").attr("disabled", false);
},
error: function(data) {
console.log(data);
}
});
});
form of multiple selected dropdown
<div class="form-group">
<label for="name" class="col-sm-2 control-label">GLNO</label>
<div class="col-sm-12">
<select name="GLNO[]" multiple id="glno" class="form-control" >
<option value=""></option>
</select>
</div>
</div>
<div class="form-group">
<label for="name" class="col-sm-2 control-label">GLNO</label>
<div class="col-sm-12">
<select name="NAME[]" multiple id="name" class="form-control" >
<option value=""></option>
</select>
</div>
</div>
controller of store
public function store(Request $request)
{
$productId = $request->id;
$request->validate([
'fmcode',
'fmcodes',
'area',
'naoffm','glno','frmdate',
'todate'
]);
$input = $request->all();
$products=$request->GLNO;
foreach ((array)$products as $product1) {
$product = Product::updateOrCreate(
[
'id'=> $productId ,
'fmcode' => $request->FMCODE,
'fmcodes' => $request->FMCODES,
'area' => $request->AREA,
'naoffm' => $request->NAOFFM,
'frmdate' => $request->frmdate,
'todate' => $request->todate,
'glno'=>$product1
]
);
}
return Response()->json($product);
}'
inserting two array multiple selected dropdown list values its showing error of inserting values so how we can pass values in for each loop for two request of values