BUU [极客大挑战 2019]PHP

没空，看了wp学着做，懒得慢慢来了

https://www.jianshu.com/p/bfe00fd583df

https://blog.csdn.net/weixin_44077544/article/details/103542260

综合以上两位大佬的博客，外加一点思考，就出来了