https://paiza.io/projects/LzmJxqpCw2sYjlV-6jo7Tg?language=php
https://paste2.org/AsU4wE32
https://hackmd.io/s/r1FojAmpJl
https://paiza.io/projects/zZWlW01wYWTe3lRndL4KBg?language=php
https://paste2.org/ME4nae9M