定制 kadanin/class-helper 二次开发
按需修改功能、优化性能、对接业务系统，提供一站式技术支持
邮箱：yvsm@zunyunkeji.com | QQ：316430983 | 微信：yvsm316
最新稳定版本：v3.0
Composer 安装命令：
composer require kadanin/class-helper
Help to work with classes and subclasses types. Union of is_a() and is_subclass_of(). Also detects if string is a class name.
of is_a()
is_subclass_of()