https://paiza.io/projects/4joIzv_X-k9wmroKsvMVcA?language=php
https://paste2.org/DL9tEgDI
https://hackmd.io/s/HJN9Fy46ke
https://paiza.io/projects/2CP-3pUkFMJ0Y8Y9Fi22Kw?language=php
https://paste2.org/GY0zhjpO