This is an example of built-in functiom using str_shuffle
This is my name shuffled: ajrlenAdo
This is an example of user-defined function
This function prints out the infost classes im taking this year
infost 440
infost 340
infost 695
In PHP, built-in functions perform predefined tasks provided by the language, while user-defined functions allow developers to create their own custom functions to perform specific tasks.