[PHP] Re-index an Array

array_values($array)

http://php.net/manual/en/function.array-values.php

[Domain Name] Get Host Name

http://www.displaymyhostname.com/

[Database Design Idea] Designs user table id by unique code rather than by auto_incrementing

Someone designs the appuser table as follows:

appuser_id
candy
abigail
florance
simon
peter
...

rather than
appuser_id
1
2
3
4
5
...

to save the effort on table joining and retrieving. For reference.

[Photo Copier] How to scale printing an A5 document onto A4 sized paper

Answer: Scale with percentage 141% rather than 200%!

http://www.papersizes.org/magnification-scale.htm

[Network] [Port Forwarding] Allow Server Access from External Workstations [Always Failed Stuff]

1. @ Router, setup port forwarding rule
2. @ Server, setup firewall rule ( sudo ufw status )