number-aggregator-example-1.php

<?php


class Numberset
{
    protected $min;
    protected $max;
    
    protected $numbers;
    
    public static function create($min, $max)
    {
        $set = new static($min, $max);
        $set->initialize();
        
        return $set;
    }
    
    public function __construct($min, $max)
    {
        $this->min = $min;
        $this->max = $max;
    }
    
    public function initialize()
    {
        $this->numbers = range($this->min, $this->max);
    }
    
    public function average()
    {
        // return the average value of the set
    }
    
    public function odd()
    {
        // filter the set so it contains only odd numbers
    }
}