<?php
  class Employee {
    public $name;
    public $department;
    public static $maximum = 30;

    function __construct($name, $department) {
      $this->name = $name;
      $this->department = $department;
    }
    function showBadge() {
      echo "Name: ".$this->name."<br>";
      echo "Department: ".$this->department."<br>";
    }
  }
  echo "Maximum employees: ".Employee::$maximum;
?>