https://paiza.io/projects/OSnp1ujHlTyjnqkEzTMmHw?language=php
https://paste2.org/5J6Hj8eX
https://hackmd.io/s/BkKg14rn1l
https://paiza.io/projects/nqOYscW7Pwthd9yqM5vjVg?language=php
https://paste2.org/0PLOLC1a