Are there any best practices for defining and using static arrays in PHP classes?

When defining and using static arrays in PHP classes, it is important to ensure that the array is properly initialized and accessed within the class methods. One best practice is to define the static array as a class property and initialize it within a static method. This helps to ensure that the array is accessible and consistent across all instances of the class.

class MyClass {
    public static $myStaticArray = [];

    public static function initStaticArray() {
        self::$myStaticArray = [1, 2, 3, 4, 5];
    }

    public static function getStaticArray() {
        return self::$myStaticArray;
    }
}

MyClass::initStaticArray();
print_r(MyClass::getStaticArray());