https://paiza.io/projects/Sl3ohj4FBuypsE0egloI_g?language=php
https://paste2.org/gwpLV91L
https://hackmd.io/s/Syb9gl4Tyx
https://paiza.io/projects/n9IiQD-z9P9BmF9dJMTYRA?language=php
https://paste2.org/9n5KCan4