https://paiza.io/projects/vIpUfrXR7fHhU7-RtK4aag?language=php
https://paste2.org/4GL5jmYe
https://hackmd.io/s/Bk68tCmakl
https://paiza.io/projects/_VQAqI3Bbdfea3aRb8FDyg?language=php
https://paste2.org/MPVCxhts