[PHP] append htlml <td> </td> ต่อให้ขึ้นบรรทัดไม่ได้ครับ

$(document).ready(function(){
      var i=1;
      $('#add').click(function(){
           i++;
           $('#dynamic_field').append('<tr id="row'+i+'">');
           ('<td><input type="text" name="meeting_id[]" value="0001" class="form-control"/></td>'); 
           ('<td><input type="text" name="meeting_item[]" placeholder="Enter your Name" class="form-control" /></td>');
           ('<td><input type="text" name="content[]" placeholder="Enter your Name" class="form-control" /></td>');
           ('<td><input type="text" name="present[]" placeholder="Enter your Name" class="form-control " /></td>');
           ('<td><input type="text" name="content_file[]" placeholder="Enter your Name" class="form-control" /></td>');
           ('<td><button type="button" name="remove" id="'+i+'" class="btn btn-danger btn_remove">X</button></td></tr>');
             });
      $(document).on('click', '.btn_remove', function(){
           var button_id = $(this).attr("id");
           $('#row'+button_id+'').remove();
      });