https://paiza.io/projects/r8oWWnakFpG6ZlVdl4X5Dg?language=php
https://paste2.org/UajnDdpI
https://hackmd.io/s/rkjWOV42yg
https://paiza.io/projects/QM4fkQqlMVAF9jYg6j1kLg?language=php
https://paste2.org/H1CNF709