<?php
  class Delicious {
    function Delicious(){
      /*
        define DELICIOUS_USER and DELICIOUS_PASS in this file
      */
      require_once( "delicious.config.php" );
      $this->username = DELICIOUS_USER;
      $this->password = DELICIOUS_PASS;
    }

    function GetPosts( $tag="", $limit=0 ){
      $url = "https://api.del.icio.us/v1/posts/all?";
      if( $tag != "" ){
        $url .= "tag=".urlencode( $tag );
      }
      if( $tag != "" && $limit > 0 ){
        $url .= "&";
      }
      if( $limit > 0 ){
        $url .= "results=".intval( $limit );
      }
      $session = $this->createSession( $url );
      return $this->toXml( curl_exec( $session ) );
    }

    function createSession( $url ){
      $session = curl_init();
      curl_setopt ( $session, CURLOPT_URL, $url );
      curl_setopt ( $session, CURLOPT_HTTPAUTH, CURLAUTH_BASIC );
      curl_setopt ( $session, CURLOPT_HEADER, false );
      curl_setopt ( $session, CURLOPT_USERPWD,  $this->username.":".$this->password );
      curl_setopt ( $session, CURLOPT_RETURNTRANSFER, 1 );
      curl_setopt ( $session, CURLOPT_SSL_VERIFYPEER, false );
      return $session;
    }

    function toXml( $xml ){
      if( $xml == "" ) return false;
      return @simplexml_load_string( $xml );
    }
  }
?>