Constants

These are values that do not change during script execution!

Explanation

For these two examples I am taking the situation rather literally, and considering that with the use of constants, these should only hold values that have no intention of changing! In both of my examples the constants are defined and used to represent fixed values. These are defined using the define() and they are global and accessible in the entirity of the script. They do not use the $ sign like variables.

Example 1

10000

Example 2

1.1.3