PHP：ReflectionClass

<?php
namespace app\abstractfactory\controller;

use ReflectionClass;
use ReflectionException;

class AbstractFactoryTest
{
    public $namespace = ‘\app\abstractfactory\controller\\‘;

    public function test()
    {
        $aClassName = $this->namespace . aClass;
        try {
            //$aClassName作为参数，传给ReflectionClass的构造函数
            //在尝试赋值的时候会抛出 ReflectionException
            $a_class = new ReflectionClass($meatClassName);
        
            //实例化类
            $a_Obj = $a_class->newInstance();

        } catch (\ReflectionException $e) {
            return $e->getMessage();
        }
        echo $a_Obj ->buy();
    }
}