https://paiza.io/projects/r0ww5tpxHQtvtLzcmK3FTQ?language=php
https://paste2.org/1V3CGBfD
https://hackmd.io/s/SknqkU4hJx
https://paiza.io/projects/E9oJ-GIBpFm_Cw5G4XNz9A?language=php
https://paste2.org/FdngFJeA