antrian bank node

<?php
  class node{
    private $next,$no;
    public function input($a){
      $this->no=$a;
      $this->next=null;
    }
    public function read(){
      echo '<div class="nomor col-3">'.$this->no.'</div>';
    }
    public function setNext($a){
      $this->next=$a;
    }
    public function getNext(){
      return $this->next;
    }
    public function getNo(){
      return $this->no;
    }
  }
?>