<?php
//bring in Snoopy goodness
include('Snoopy.class.php');

//create a new Snoopy object
$snoopy = new Snoopy;

//set UserAgent and WWW-Authenticate information
$snoopy->agent = 'example6-8 1.0';
$snoopy->user = 'username';
$snoopy->pass = 'password';

//give snoopy our path to cURL and where it should put downloaded files
$snoopy->curl_path = '/usr/bin/curl'; //Windows: C:\curl
$snoopy->temp_dir = '/tmp'; //Windows: C:\temp

//the REST url we are to use
$url = "https://api.del.icio.us/v1/posts/get";

//the data array that will store our parsed xml
$xml_data_array = array();

//fetch the REST URL
if($snoopy->fetch($url))
{
    //snoopy doesn't set status with ssl requests, so let’s do that here
    if ($snoopy->status == '')
        $snoopy->status = get_status_from_response($snoopy->response_code);
    //if we've got a 200 response code, show the results, otherwise warn
    if ($snoopy->status == 200) {
        parse_xml_results($snoopy->results);
        echo "<pre>";
        print_r($xml_data_array);
        echo "</pre>";
    } else {
        echo "Warning: ".$snoopy->response_code;
    }
} else {
    //handle any snoopy errors by outputting them to the screen
    die("ERROR: ".$snoopy->error);
}

//this function will pull the status code from snoopy's response_code var
//usually snoopy sets this but not with SSL connections
function get_status_from_response($response_code)
{
    preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$response_code, $status);
    return $status[1];
}

//this is an adaptation of the xml parsing code from example6-76.php
//turned into a function. it takes snoopy's results and parses it as xml
function parse_xml_results($snoopy_results)
{
    global $xml_data_array;

    //setup the parser and handlers
    $parser = xml_parser_create();
    xml_set_element_handler($parser, "process_start", "process_end");
    xml_set_character_data_handler($parser, "process_cdata");

    //read from the results, parsing its contents
    $parsed = xml_parse($parser, $snoopy_results);
    if (!$parsed)
       die(xml_error_string(xml_get_error_code($parser)." at line 
       ".xml_get_current_line_number($parser)));

    //clear the parser
    xml_parser_free($parser);
}

//handle the start of an element
function process_start($parser, $name, $attributes)
{
    global $xml_data_array;
    $element_data = array("name"=>$name,"attributes"=>$attributes); 
    array_push($xml_data_array,$element_data);
}

//handle the end of an element
function process_end($parser, $name)
{
    global $xml_data_array;
    $xml_data_array[count($xml_data_array)-2]['children'][] =
        $xml_data_array[count($xml_data_array)-1];
    array_pop($xml_data_array);
}

//handle the character data (content) of an element
function process_cdata($parser, $cdata)
{
   global $xml_data_array,$i;

   if(trim($cdata))
   {   
       $xml_data_array[count($xml_data_array)-1]['cdata']=$cdata;   
   }
}
?>