/*12: Create a function named hello that has a $name parameter and outputs "Hello Dave!" when it is called, and the value of the argument passed in is "Dave". It should work with other values, too. Remember to call the function with the argument. */ $myName = "Walt"; // Don't change the value of $myName above /* NOTE: It is important to understand the variable name that holds the argument value does NOT have to be the same as the $name parameter in the definition of the function. Functions should be reusable. You should be able to pass in different argument variables and your function should still work.

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A:

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Types of Function

A function is a process or task that does some operation in the program. Some programming languages may contain built-in functions for certain commonly used tasks. Most programming languages also support user-defined functions, which means a user can write their own function to perform some operation. There are some libraries or header files that contain built-in functions for performing certain tasks.