<?php
          $noOfFriends\; =\; 6;$numTweets = 21;
          
          //include("stopwords.incl.php");
          $stopwords\; =\; Array(\; "i",\; "a",\; "about","an",\; "and",\; "are",\; "as",\; "at",\; "be",\; "by",\; "for",\; "from",\; "how",\; "in",\; "is",\; "it",\; "la",\; "of",\; "on",\; "or",\; "that",\; "the",\; "this",\; "to",\; "was",\; "what",\; "when",\; "where","who",\; "will",\; "with",\; "under"\; );\; function\; printForUse\; ($url) {
                  global $stopwords;$lines = file($url);\; foreach($lines as $line)\; \{\; if\; (\; strstr($line, "<status>") ||
                                  strstr($line,\; "$</status>") ||
                                  strstr(line, "<created_at>") ||
                                  strstr($line,\; "$<id>") ||
                                  strstr(line, "<text>") ||
                                  strstr($line,\; "user>")\; ||\; strstr($line, "<screen_name>") ||
                                  strstr($line,\; "$<profile_image_url>") ) {
                                  echo(line);
                          }
                          if ( strstr($line,\; "$<text>") ) {
                                  echo("\t<keywords>\n");
                                  line = str_replace(array("<text>", "</text>", ".", ",", ";", ":", "?", "!", "(", ")", "&quot"), "", strtolower($line));$keywords = Array();
                                  foreach(explode(" ", trim($line))\; as$word) {
                                          if (!in_array($word,$stopwords) && !in_array($word,$keywords) && word, "http")) {
                                                  $keywords[]\; =$word;
                                                  echo("\t\t<keyword>$word$</keyword>\n");
                                          }
                                  }
                                  
                                  echo("\t</keywords>\n");
                          }
                  }
          }
          
          function getFriends (username, $max)\; \{$lines = file("http://twitter.com/$username");
                  
                  for($i=0;$i < count($lines);$i++) {
                          if (strstr($lines[$i], 'class="vcard">')) {
                                  $fragments\; =\; explode("http://twitter.com/",$lines[$i+1]);$fragments = explode("\" class=\"url\"", $fragments[1]);$results[] = $fragments[0];\; \}\; if\; (count($results) == $max)\; \{\; return$results;
                          }
                  }
                  return $results;\; \}\; function\; getMessages\; ($username) {
                  global $numTweets,$noOfFriends;
                  
                  $users\; =\; getFriends($username, $noOfFriends);$users[] = $username;$max = floor($numTweets\; /\; count($users));
                  
                  foreach($users\; as$user) {
                          printForUse( "http://twitter.com/statuses/user_timeline/$user.xml?count=$max" );
                  }
          }
          
          header("Content-type: xml");
          
          echo("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
          echo("<statuses type=\"array\">");
          
          if (isset(_GET["user"] == "all") {
                  printForUse( "http://twitter.com/statuses/public_timeline.xml");
          } else if (isset(_GET["user"] != "default") {
                  getMessages($\_GET["user"]);\; \}\; else\; \{\; printForUse(\; "student-twitter-default.xml"\; );\; \}\; echo("$</statuses>");
  ?>