PKPServices.inc.php

<?php
 
abstract class PKPServices {
 
   private static $instance = null;
 
   protected $container = null;
 
   private function __construct() {
      $this->container = new Pimple\Container();
      $this->init();
   }
 
   abstract protected function init();
 
   public static function register(Pimple\ServiceProviderInterface $service) {
      self::_instance()->container->register($service);
   }
 
   public static function get($service) {
      return self::_instance()->_getFromContainer($service);
   }
 
   private static function _instance() {
      if (is_null(self::$instance)) {
         self::$instance = new Services();
      }
 
      return self::$instance;
   }
 
   private function _getFromContainer($service) {
      return $this->container[$service];
   }
 
}