# sudo composer require doctrine/instantiator
<?php
require ‘vendor/autoload.php‘;
require_once ‘hello.php‘; // 如果不存在,将报错
// class hello {
// public function sayHello() {
// echo "hello php";
// }
// }
$instantiator = new \Doctrine\Instantiator\Instantiator();
$instance = $instantiator->instantiate(‘hello‘);
$instance->sayHello();
原文:https://www.cnblogs.com/jiqing9006/p/13137808.html