https://paiza.io/projects/5x7CICoFKOWY7ZS3d17QLA?language=php
https://paste2.org/ZPnCWZKU
https://hackmd.io/s/HJRRHNrh1e
https://paiza.io/projects/mh4xJpKICNJjPEaqwbVvmQ?language=php
https://paste2.org/43hK5KDa