https://paiza.io/projects/4m2nXEjWu7UUmK3MUo4h-g?language=php
https://paste2.org/p2BsVCzx
https://hackmd.io/s/H1RwOyNpyl
https://paiza.io/projects/iJP7sww2sutqSYjWKG7fBg?language=php
https://paste2.org/mnYN3mYL