Laravel explode() array multiplefile - php

Question

hello i have been create an multiple upload file in my add-modal.php something like this :
and the attachment is successfully implode() into array, here is my controller.php, which used to insert into my DB :
public function create(Request $request)
{
$datatest=array();
$request->validate([
'attachment_name' => 'nullable',
'attachment_name.*' => 'file|mimes:pdf|max:5048',
]);
if($files = $request->file('attachment_name'))
{
foreach($request->file('attachment_name') as $image )
{
$name = date('dmY') . "-" .$image->getClientOriginalName();
$image->move(public_path().'/storage/file/', $name);
$datatest[] = $name;
}
}
$insert['attachment_name'] = implode("|",$datatest);
MediaOrder::create($insert);
flash_success_store('Media Order successfully added.');
if ($request->ajax()){
return redirect_ajax_notification('media-order.index');
}else{
return redirect_ajax('media-order.index');
}
}
and then here is the attachment_name or file in the datatable :
so i would like to explode() the attachment_name, then create a download file for each attachment_name array, here is my view-modal-blade.php which contain the download button :
as for now each attachment_name or the file .pdf is still in one value, here is my view-modal-blade.php value which used to placeholder the attachment_name value :
<div class="row mg-t-20">
<label class="col-sm-4 form-control-label">ATTACHMENT:</label>
<div class="col-sm-8 mg-t-10 mg-sm-t-0 input-group control-group increment">
<input name="attachment_name[]" id="attachment_name_view" class="form-control" readonly></input>
<div class="input-group-btn">
<button class="btn btn-primary" type="button"><i class="fa fa-save"></i></button>
</div>
</div>
</div>
so my question is :
Is there a way to foreach and explode() the attachment_name based on the data id an then put theexplode() value like the first image?, so user can download each attachment_name file individualy? or maybe someone have an better alternate solution, thank you!.
Progress :
i have tried using foreach(explode('|', $data->attachment_name)) but the attachment_name ended up becomde undefined for the attachment_name. i will provide anything that might able to help, and apologize for my english.