<p>In my form, I have a dynamic table with multi-select dropdowns color_id[] and size_id[] with the same name in each row. I don't know how to save multiple selected values ​​as comma separated values ​​in each row stored in the database. I tried saving to database here but it didn't work. </p> <p>HTML code: </p> <pre class="brush:php;toolbar:false;"><table><tbody><td><select name="color_id[]" class="select2" id=" ;color_id" style="width:200px; height:100px;" required multiple></select></td><td> <select name="size_id[]" class=" select2" id="size_id" style="width:200px; height:100px;" required multiple> </select></td></tbody></table></pre> <p>Laravel code saved in controller:</p> <pre class="brush:php;toolbar:false;">$class_ids = $request->input('class_ids'); for($x=0; $x<count($class_ids); $x ) { #code... $color_ids = implode(',', $request->color_id[$x]); $size_ids = implode(',', $request->size_id[$x]); $data3[]=array( 'bom_code'=>$TrNo, 'bom_date'=>$request->bom_date, 'cost_type_id'=>$request->cost_type_id, 'Ac_code'=>$request->Ac_code, 'season_id'=>$request->season_id, 'currency_id'=>$request->currency_id, 'item_code' => $request->item_codes[$x], 'class_id' => $request->class_ids[$x], 'description' => $request->descriptions[$x], 'color_id' => $color_ids, 'size_array' => $size_ids, 'consumption' => $request->consumptions[$x], 'unit_id'=> $request->unit_ids[$x], 'rate_per_unit' => $request->rate_per_units[$x], 'wastage' => $request->wastages[$x], 'bom_qty' => $request->bom_qtys[$x], 'total_amount' => $request->total_amounts[$x], ); } BOMSewingTrimsDetailModel::insert($data3);</pre>

$(document).on('change', 'select[name^="color_id[]"],select[name^="size_id[]"]', function(){CalculateQtyRowPros2($(this).closest("tr"));});

function CalculateQtyRowPros2(row){   
var color_id=row.find('select[name^="color_id[]"]').val().join(",");
var size_id=row.find('select[name^="size_id[]"]').val().join(",");
row.find('input[name^="color_arrays[]"]').val(color_id);
row.find('input[name^="size_arrays[]"]').val(size_id);}