https://paiza.io/projects/G5vN5ek7-BRyD2pVHa6I2Q?language=php
https://paste2.org/j5AbNchf
https://hackmd.io/s/Bym0MIV3kx
https://paiza.io/projects/PlmFN5L-YVRRN8xsolOEAA?language=php
https://paste2.org/vxNz29pe