PHP魔术方法的使用

Object类

<?php
/**
 * Created by PhpStorm.
 * User: dragon
 * Date: 2017/5/4
 * Time: 14:38
 */

namespace core\lib;


class Object
{
    protected $array = [];

    public function __set($name, $value)
    {
        // TODO: Implement __set() method.
        var_dump(__METHOD__);
        $this->array[$name] = $value;

    }

    public function __get($name)
    {
        // TODO: Implement __get() method.
        var_dump(__METHOD__);
        return $this->array[$name];
    }

    public function __call($name, $arguments)
    {
        // TODO: Implement __call() method.
        var_dump($name,$arguments);
        return "magic function\n";
    }

    static function __callStatic($name, $arguments)
    {
        // TODO: Implement __callStatic() method.
        var_dump($name,$arguments);
        return "magic static function\n";
    }

    public function __toString()
    {
        // TODO: Implement __toString() method.
        return __CLASS__;

    }

    public function __invoke($param)
    {
        // TODO: Implement __invoke() method.
        var_dump($param);
        return "invoke";
    }
}

Object类中包含_set()和_get()方法后，就可以访问到未定义的属性

include CORE.'/z_frame.php';
spl_autoload_register('\core\z_frame::load');

$obj = new \core\lib\Object();

$obj->title = 'zdc';
echo $obj->title;

操作未定义的属性title

Object类中包含__call()方法后，可以调用未定义的方法

include CORE.'/z_frame.php';
spl_autoload_register('\core\z_frame::load');

$obj = new \core\lib\Object();

echo $obj->test("zdc",123);

调用未定义的函数test

Object类中包含__callStatic()方法后，可以调用未定义的静态方法

include CORE.'/z_frame.php';
spl_autoload_register('\core\z_frame::load');

$obj = new \core\lib\Object();

echo \core\lib\Object::test("zdc",123);

调用未定义的静态函数test

用__toString()方法可将一个类对象当字符串返回

include CORE.'/z_frame.php';
spl_autoload_register('\core\z_frame::load');

$obj = new \core\lib\Object();

echo $obj;

将一个类对象当字符串返回

在Object类中定义__invoke()函数可以将对象当函数使用

include CORE.'/z_frame.php';
spl_autoload_register('\core\z_frame::load');

$obj = new \core\lib\Object();

echo $obj("zdc");