php

Magic Constants are mainly used for debugging OR logging purposes in PHP.

CONSTANTS must be defined and can’t be changed throughout the program like $variables can. CONSTANTS are global and therefore can be accessed from FUNCTIONS as well. Other facts about constants:

It’s very easy to connect to MySQL database using PHP. You just need to know HOSTNAME, USERNAME (this is DB username), PASSWORD (pw for DB), DB_NAME and that’s it. It’s better to have a separate PHP file named connect.php for connection information. There are TWO ways of doing this. EXAMPLE 1 is more cleaner and … Read more