本文共 2273 字，大约阅读时间需要 7 分钟。

   ";        // echo __CLASS__ . "
";        // echo __METHOD__ . "
";        $this->_name = $name;    }    public function __destruct()    {
            echo '__destruct' . "
";    }    public function __get($name)    {
            echo '__get' . "
";        if (array_key_exists($name, $this->data)) {            return $this->data[$name];        }        $trace = debug_backtrace();        trigger_error(            'Undefined property via __get(): ' . $name .            ' in ' . $trace[0]['file'] .            ' on line ' . $trace[0]['line'],            E_USER_NOTICE);        return null;    }    public function __set($name, $value)    {
            echo '__set' . "
";        $this->data[$name] = $value;    }    public function __isset($name)    {
            echo '__isset' . "
";        return isset($this->data[$name]);    }    public function __unset($name)    {
            echo '__unset' . "
";        unset($this->data[$name]);    }    public function __call($name, $arguments)    {
            // 注意: $name 的值区分大小写        /*echo "Calling object method '$name' "             . implode(', ', $arguments). "\n";*/        $className = '_' . $name;        $this->$className();    }    private function _getName()    {
            echo 'call _getName' . "
";    }    public static function __callStatic($name, $arguments)     {
            // 注意: $name 的值区分大小写        echo "Calling static method '$name' "             . implode(', ', $arguments). "\n";    }    public function __sleep()    {
            return array('server', 'username', 'password', 'db');    }    public function __wakeup()    {
            $this->connect();    }    public function __toString()    {
            echo 'call __toString' . "
";        return $this->_name . "
";    }    //当尝试以调用函数的方式调用一个对象时，__invoke() 方法会被自动调用。    function __invoke($x) {
            var_dump($x);    }    public function __debugInfo() {
            return [            'propSquared' => $this->_name,        ];    }}

调用文件

   a);echo "
";unset($mag->a);var_dump(isset($mag->a));echo "
";*//*$mag->getName();echo "
";magic::getName();echo "
";*///测试__toString// echo $mag;// $mag(5);// echo "
";// var_dump(new magic('jack'));// echo "
";//魔术常量// echo __LINE__;// echo __FILE__;// echo __DIR__;// echo __NAMESPACE__;

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