获取索引，同时将一个元素插入到php数字索引数组中[关闭]

Question

The example code like here.

<?php

   $new_room_result = array();
   $rooms = array('single room' , 'delux room' , 'president room' , 'seavie room');

   foreach($rooms as $room){

     $new_room_result[] = $room;
     // the next step - i want to get the index of after last inserment's index.

   }

?> 

Does anyone have any ideas?

Answer 1

 foreach($rooms as $room){

   $new_room_result[] = $room;
  end($new_room_result);         // move the internal pointer to the end of the array
  $key = key($new_room_result);
      var_dump($key);

 }