接口的使用

<?php

/*声明接口MPopedom*/

interface MPopedom
{
    function popedom();
}

/*声明接口MPurview*/

interface MPurview
{
    function purview();
}

/*创建子类Member,实现一个接口MPurview*/

class Member implements MPurview
{
    function purview()
    {
        // TODO: Implement purview() method.
        echo "会员拥有的权限";
    }
}

/*创建子类Manager,实现多个接口MPurview和MPopedom*/

class Manager implements MPurview, MPopedom
{
    function purview()
    {
        // TODO: Implement purview() method.
        echo "管理员拥有会员的全部权限";
    }

    function popedom()
    {
        // TODO: Implement popedom() method.
        echo "管理员还拥有会员没有的权限";
    }
}

$member = new Member();//Member实例化
$manager = new Manager();//Manager实例化
$member->purview();//调用$member对象的purview方法
echo "<br>";
$manager->purview();//调用$manager对象的purview方法
$manager->popedom();//调用$manager对象的popedom方法