JSFiddle - React, Tailwind, and code Playground

HTML

<form id="form1" action="index.php?p=ekle" enctype="multipart/form-data">
  <textarea name="icerik" class="ckeditor" id="editor1">test</textarea>
  <input type="submit" class="myButton" data-formid="1" value="Haberi Ekle">
</form>
 <form id="form2" action="index.php?p=ekle" enctype="multipart/form-data">
  <textarea name="icerik" class="ckeditor" id="editor1">test</textarea>
  <input type="submit" class="myButton" data-formid="2" value="Haberi Ekle">
</form>
<form id="form3" action="index.php?p=ekle" enctype="multipart/form-data">
  <textarea name="icerik" class="ckeditor" id="editor1">test</textarea>
  <input type="submit" class="myButton" data-formid="3" value="Haberi Ekle">
</form>

JavaScript

$('.myButton').click(function()
{	
    var formid = '#form'+$(this).data('formid');
    $(formid).submit(function( event ) {
      alert('Gönderilen form id : '+ formid);
      event.preventDefault();
    }); 
 
});