What are the best practices for passing arrays as parameters to user-defined functions in PHP?

When passing arrays as parameters to user-defined functions in PHP, it is best practice to use type hinting to ensure that the function receives an array as input. This helps to prevent errors and improve code readability. Additionally, you can use the `...` operator to pass an arbitrary number of arguments as an array to the function.

// Using type hinting to ensure that the function receives an array as input
function processArray(array $arr) {
    // Function logic here
}

// Passing an array as a parameter to the function using the ... operator
$myArray = [1, 2, 3];
processArray(...$myArray);