https://paiza.io/projects/JMHc137E__MXCH3X_3W2xA?language=php
https://paste2.org/1NXgB2m6
https://hackmd.io/s/BJrvJeVpyl
https://paiza.io/projects/3CWgpslQwgFbVbHa-RhhCA?language=php
https://paste2.org/W3ezcAJ3