What are the best practices for defining functions in PHP class variables?

When defining functions in PHP class variables, it is best practice to use the public access modifier to make the function accessible outside of the class. Additionally, it is recommended to use the function keyword followed by the function name and parameters. Finally, make sure to include the function logic within the curly braces of the function.

class MyClass {
    public function myFunction($param1, $param2) {
        // function logic here
    }
}