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HomeBackend DevelopmentPHP Tutorial 关于拦截器的功用

关于拦截器的作用

class Computer {

private $_name;
private $_model;
private $_cpu;

private function __set($_key,$_value) {
$this->$_key = $_value;
}

private function __get($_key) {
return $this->$_key;
}

}


$computer = new Computer();
$computer->_name = '联想';
$computer->_cpu = '四核';
$computer->_model = 'i7';

echo $computer->_name;
echo $computer->_cpu;
echo $computer->_model;
我想问的事如果使用了_set和_get方法,那么类的私有属性就可以在外面任意使用赋值修改,那么和把属性设置为Public有何区别了,感觉上这两个方法没有什么用了。

------解决方案--------------------
是的,对于你的用法,的确是画蛇添足
------解决方案--------------------
set不是你那样用的,你去看哈其他开源框架就清楚了,特别是些开源框架的数据库Active Record类
------解决方案--------------------
面向对象就是要隐藏数据,开放接口。

你遵不遵循是你的事,程序只会听你的话,语法就这么回事。

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