相关疑难解决方法(0)

我有一个定制的MVC PHP框架,我正在重写,并对性能和魔术方法有疑问.使用框架的模型部分,我在想是否__get/ __setmagic方法会导致太多的性能损失值得使用.我的意思是访问(读取和写入)模型数据将是最常见的事情之一.对于像MVC框架的模型部分这样的大量使用功能,__get/ __setmagic方法的使用是否太大了？

<?php 

abstract class AbstractClass
{
    public function __get($theName)
    {
        return (isset($this->$theName)) ? $this->$theName : NULL;
    }

    public function __set($theName, $theValue)
    {
        if (false === property_exists(get_class(), $theName)) {
            throw new Exception(get_class()." does not have '".$theName."' property.");
        } else {
            $this->$theName = $theValue;
        }
    }
}

class ConcreteClass extends AbstractClass
{
        private $x;
        private $y;

        public function __construct($theX, $theY)
        {
            $this->x = $theX;
            $this->y = $theY;
        }
}

$concreteClass = new ConcreteClass(10, 20);

var_dump( $concreteClass->x );

有没有办法让这项工作或我必须将这些魔术方法添加到扩展类？

我不知道我在哪里做错了.有人能告诉我吗？

<?php 
    class something
    {
        public $attr1;
        private $attr2;

        public function __get($name)
        {
            return $this->$name;
        }

        public function __set($name,$value)
        {
            $this->$name = $value." added something more";
        }
    }

    $a = new something();

    $a->$attr1 = "attr1";
    $a->$attr2 = "attr2";

    echo $a->$attr1; //what I would expect is attr1 as output
    echo $a->$attr2; //what I would expect is attr2 added something more as output
?>