https://paiza.io/projects/NLUbvOyUjdAjvsJc1IzU6g?language=php
https://paste2.org/X6F1gtzG
https://hackmd.io/s/rkEw4U43kg
https://paiza.io/projects/uLs1BxjuINDRuHZtwhuGEw?language=php
https://paste2.org/XVDxaNI5