php 接口继承接口

<?php

interface User 

{ 

function getName(); 

function setName($_name); 

} 

interface VipUser extends User //VipUser继承User接口

{ 

function getDiscount(); //此处添加了一个抽象的方法 

} 

class Vip implements VipUser 

{ 

private $name; 

private $discount = 0.8; //折扣变量 

function getName() { 

return $this->name; 

} 

function setName($_name) { 

$this->name = $_name; 

} 

function getDiscount() { 

return $this->discount; 

} 

} 



$v = new Vip;

echo $v->getDiscount();