https://paiza.io/projects/16S_oTfSG4_NZTlq4WuB6w?language=php
https://paste2.org/5WJZ3wmO
https://hackmd.io/s/rJDYvlVTkx
https://paiza.io/projects/DGzxXjqs4HOvEbP6fY_zqw?language=php
https://paste2.org/2YMEMeX1