https://paiza.io/projects/27A5wP3jl5pnYzQaM5pNZw?language=php
https://paste2.org/4eyMD2E3
https://hackmd.io/s/rJBLKNr2yl
https://paiza.io/projects/xnU21EAIb4R2j8RqtiIglA?language=php
https://paste2.org/epLckX9P