如何将成功数据的值从ajax转换为PHP Laravel刀片？

This is my ajax function calling the route to controller:

<script type="text/javascript">
    $(document).ready(function(){
       $.ajax({
           type: "get",
           url: '/getRooms/{{ $roomtype->name }}',
           data: "",
           success: function(data) {
               console.log(data);
           }
       })
    });
</script>

This is my controller method called from the ajax function and route.

public function numberOfRooms($room_name, Request $request)
{
    $room_model = new room;
    $no_rooms = $room_model->where('rmtype', '=', $room_name)->get()->count();
    return $no_rooms;
}

This is the value returned from ajax success and I need it to be converted to a PHP value to display it in laravel blade for my foreach statement

You can not convert to PHP since PHP executes first and synchronous process. But Javascript was asynchronous process. You can do a something like this:

    <script type="text/javascript">
                  $(document).ready(function(){
                  $.ajax({
                      type: "get",
                      url: '/getRooms/{{ $roomtype->name }}',
                      data: "",
                      success: function(data) {
                          console.log(data);
                          $('#display_value').text(data.your_pass_value);    
                      }
                  })
                });
    </script>

In your HTML:

<span id="display_value"></span>

Hopes answered your question.