https://paiza.io/projects/lgUfGkRB3Fmm1Nnmiu1HHQ?language=php
https://paste2.org/cBhFscI5
https://hackmd.io/s/rJnjdNmA1l
https://paiza.io/projects/aF60caE1yvaQ6JMwO3gRFw?language=php
https://paste2.org/e4U9v7gE