<form id="user_list">
  <div>

   </div>
  <input type="submit"/>
 </form>

var obj = {
  users:[{name:"user 1"},{name:"user 2"}]
}

var user_list = $("#user_list>div");

obj.users.forEach(function(user,index){

    user_list.append("<div>"+
                     "<h1>" + user.name + "</h1>"+
                     "<input type='text' id='user_"+ index +"'/>"+
                     "</div>");
});

"<input type='text' name='[user_"+ index +"]'/>"+

$("input[type='text']").each(function(input){
       $(input).val();
    });