Object-Oriented PHP

DirectoryItems Change

Fortunately, because the list of images in the DirectoryItems class is an array, you can use the ready-made PHP function to return a portion of an array—array_slice. All you need to do is wrap this function inside a method. Here is the additional method you require:

public function getFileArraySlice($start, $numberitems){
        return array_slice($this->filearray, $start, $numberitems);
}

The $start variable passed to this method performs the same function as the start variable in the Google query string discussed in Chapter 7. The $numberitems variable sets the number of items you wish to display per page. In a way, the entire PageNavigator class is an answer to the question, "How can you pass values to the getArraySlice