如何在jquery中添加返回值

这里我从数据库中选择了匹配的记录，之后我在上一页返回，在这里我得到了所有的值，但我不知道如何在这个页面中添加这个返回值，我需要像而不是房间2，房间3…在value中追加值。room_number and PG NAME HERE append in value.bg_id

我得到了这样的值

var res =jQuery.parseJSON(data);
         console.log(res);

count:2 data:Array[2] 0:Object 1:Object

booking_status:"1"

id:"2"

pg_id:"1"

租金:"4000"

room_number:"房间2"

room_sharing:"2"

---

booking_status:"1"

id:"3"

pg_id:"1"

租金:"4000"

room_number:"房间3"

room_sharing:"2"

index.php
<script>
function showDiv(toggle){
var sharing=$("#sharing").val();
$.ajax({
	     type: "POST",
		 url: "pg_details.php",
	     data: "sharing_id="+sharing,
		 success: function(data) {
		 var res =jQuery.parseJSON(data);
		 console.log(res);
		 if(res['return'] == 1){
			   var htmlString=''; 
			   $.each( res['data'], function( key, value ){
			  htmlString ='<div id="toggle"><div class="container" style=" margin-bottom: 30px;"><div class="row"><h4 style="margin-left:15px;">'+value.pg_id+'</h4><div class="col-sm-10"><div class="btn-group" id="btnmar"><a href="register.php?id=2"><button  type="button" class="btn btn-primary" style=" width: 71px; ">'+value.room_number+'</button></a>&nbsp;&nbsp;</div></div><div class="col-sm-2"><div class="panel-group"><div class="panel panel-primary"><div class="panel-heading"> Premium Facility</div><div class="panel-body" style=" padding-top: 5px; padding-bottom: 5px;"><i class="fa fa-television" aria-hidden="true" style="margin-right:15px;"></i>T.V.</div><div class="panel-body" style=" padding-top: 5px; padding-bottom: 5px;"><i class="fa fa-wifi" aria-hidden="true" style="margin-right:15px;"></i>Wifi</div><div class="panel-body" style=" padding-top: 5px; padding-bottom: 5px;"><i class="fa fa-bed" aria-hidden="true" style="margin-right:15px;"></i>Bed</div><div class="panel-body" style=" padding-top: 5px; padding-bottom: 5px;"><i class="fa fa-shopping-basket" aria-hidden="true" style="margin-right:15px;"></i>Washing Machine</div></div></div></div></div></div></div>';
				
			});
			$(".view_room").prepend(htmlString);
			
		}
	     }
	  });
}
</script>
pg_details.php
<?php
include_once("admin/config.php");
include("functions.php");
//$pg_name=Getpg($_POST['pg_id']);
$sharing=$_POST['sharing_id'];//Getting Sharing Value
$sql=mysql_query("SELECT * FROM rooms WHERE room_sharing='$sharing'");
$count = mysql_num_rows($sql);
if($count > 0){
	while($row=mysql_fetch_assoc($sql)){
	$data[]= $row;
	}
	$pg_type= array("return"=>1,"count" =>$count,"data" =>$data);
    echo $pg_type = json_encode($pg_type);
}else{
	$pg_type= array("return"=>0,"count" =>0,"data" =>"");
    echo $pg_type = json_encode($pg_type);
}
?>

<div class="view_room"></div>