https://paiza.io/projects/8GA4vVV9K4DVtEnT2ivdsw?language=php
https://paste2.org/xy2E8pnP
https://hackmd.io/s/HyBxHyEpJe
https://paiza.io/projects/wsP-IPT8f7ewYGTTQ9bATQ?language=php
https://paste2.org/y9P17aJA