gistfile1.txt

var html = '<input type="text" name="first_name[]" />';
html += '<input type="text" name="last_name[]" />';

$('#div').append(html);


// 

to get logic

$data = request()->input('first_name');

foreach($data as $key => $v) {
  // pwde na nimo kwaon ang last name
  $lastname = request()->input('last_name')[$key]
}