Functions

Example of a built-in (predefined) function:
The sentence "I am a SOIS student at UW-Milwaukee." has 35characters
Example of a user-built function:
3 * 3 =9

Definition

Functions are indicated by () following some text such as example(). Functions are used for many purposes such as finding the length of a string, trimming the whitespace of a string, or echoing. Functions can either be predefined or created by the coder.