<?php
  
  namespace Guzzle\Parser\UriTemplate;
  
  use Guzzle\Common\Exception\RuntimeException;
  
  /**
   * Expands URI templates using the uri_template pecl extension (pecl install uri_template-beta)
   *
   * @link http://pecl.php.net/package/uri_template
   * @link https://github.com/ioseb/uri-template
   */
  class PeclUriTemplate implements UriTemplateInterface
  {
      public function __construct()
      {
          if (!extension_loaded('uri_template')) {
              throw new RuntimeException('uri_template PECL extension must be installed to use PeclUriTemplate');
          }
      }
  
      public function expand($template, array $variables)
      {
          return uri_template($template, $variables);
      }
  }