PHP魔术方法__get()和__set()用法

<?php
class person
{
    private $name;
    function __set($_name, $_value)
    {
        $this->$_name = 'set-' . $_value;
    }
    function __get($_name)
    {
        return 'get-' . $this->$_name;
    }
}


$p = new person();
$p->name = "张三";
echo $p->name;