我有以下动态生成的表单：

var data = [
   {Id: "1", },
   {Id: "2", },
   {Id: "3", },
   {Id: "4", },
   {Id: "5", },
   {Id: "6", },
];

$(document).on('click', '.dad-pagamento', function() {

  var linha = ``;
  for (var x = 0; x < data.length; x++) {

   linha += `<form method="POST" action="" enctype="multipart/form-data" class="row g-3 instarefa">
             <div class="col-2">
              <input type="text" class="form-control" name="id_tareff[]" value="${data[x].Id}">
             </div>
             <div class="col-7">
              <label for="obsposic" class="form-label">Observações </label>
              <textarea rows="3" class="form-control aarea" name="obsposic[]"></textarea>
             </div>
             <div class="col-1">
              <button type="button" class="btn-wide btn btn-primary"  onclick="reg_tarefa();"> TRATADO <i class="metismenu-icon pe-7s-paper-plane"></i></button>
             </div>
             </form>
             <hr class="linha"/>`;
   
   $(".pagmfalta").html(linha);
   $('#minhaDiv1').show();
   
   }
});

<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6-rc.0/css/select2.min.css" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/pixeden-stroke-7-icon@1.2.3/pe-icon-7-stroke/dist/pe-icon-7-stroke.min.css" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js"></script>

<button type="button" class="btn btn-info dad-pagamento" style="float: right; margin-right: 5%; margin-top: 4%;"><i class="metismenu-icon pe-7s-search"></i> Consultar </button>

<section id="s1">
  <div style="display:none" id="minhaDiv1">
        <div class="row pagmfalta">

        </div>
  </div>
</section>

到目前为止一切顺利。我的问题是现在发送值 到php来插入到数据库中。我是这样做的：

function reg_tarefa()
{  
var id_tareff = [];
$("input[name='id_tareff[]']").each(function() {id_tareff.push(this.value)});

var obsposic = [];
$("textarea[name^='obsposic[]']").each(function() {obsposic.push($(this).val())});

var dadosajax = {
'id_tareff[]' : id_tareff,
'obsposic[]' : obsposic
}

$.ajax({
    url: 'regtarefa.php',
    type: 'POST',
    cache: false,
    data: dadosajax,
    success: function(result2){ 

    }
  });
}

例如，我想点击第二个按钮，其中id = 2，只发送关于该id的数据。当我这样做时，它发送所有id的数据。你能帮忙吗？