责任链模式

<?php
class board{
    protected $power = 1;
    protected $top = "admin";
    public function process($lev){
        if($lev <= $this->power){
            echo "版主删帖";
        }else{
            $top = new $this->top;
            $top->process($lev);
        }
    }
}
class admin{
    protected $power = 2;
    protected $top = "police";
    public function process($lev){
        if($lev <= $this->power){
            echo "管理员封账号";
        }else{
            $top = new $this->top;
            $top->process($lev);
        }
    }
}
class police{
    protected $power;
    protected $top = null;
    public function process($lev){
        echo "抓起来";
    }
}
//责任链模式来处理举报问题
$lev = $_POST['jubao']+0;
$judge = new board();
$judge->process($lev);