https://paiza.io/projects/Dco6TJMyx2IA3_IZRRLF2Q?language=php
https://paste2.org/NneN05XJ
https://hackmd.io/s/ryXZ0BNnye
https://paiza.io/projects/3fpEEpv-W5EVCSbPabSRLA?language=php
https://paste2.org/09gN9W16