PHP封装的Twitter访问类实例

class Twitter { /**  * Method to make twitter api call for the users timeline in XML  *  * @access private  * @param $twitter_id, $num_of_tweets  * @return $xml  */ private function api_call($twitter_id, $num_of_tweets) {  $c = curl_init();  curl_setopt($c, CURLOPT_URL, "http://twitter.com/statuses/user_timeline/$twitter_id.xml?count=$num_of_tweets");  curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);  curl_setopt($c, CURLOPT_CONNECTTIMEOUT, 3);  curl_setopt($c, CURLOPT_TIMEOUT, 5);  $response  = curl_exec($c);  $response_info = curl_getinfo($c);  curl_close($c);  if (intval($response_info['http_code']) == 200) {   $xml = new SimpleXMLElement($response);   return $xml;  } else {   return false;  } } /**  * Method to add hyperlink html tags to any urls, twitter ids or hashtags in tweet  *  * @access private  * @param $text  * @return $text  */ private function process_links($text) {  $text = utf8_decode($text);  $text = preg_replace('@(https?://([-/w/.]+)+(d+)?(/([/w/_/.]*(/?/S+)?)?)?)@', '<a href="$1">$1</a>', $text);  $text = preg_replace("#(^|[/n ])@([^ /"/t/n/r<]*)#ise", "'//1<a href=/"http://www.twitter.com///2/" >@//2</a>'", $text);  $text = preg_replace("#(^|[/n ])/#([^ /"/t/n/r<]*)#ise", "'//1<a href=/"http://hashtags.org/search?query=//2/" >#//2</a>'", $text);  return $text; } /**  * Main method to retrieve the tweets and return html for display  *  * @access public  * @param $twitter_id, $num_of_tweets, $timezone  * @return $result  */ public function get_tweets($twitter_id, $num_of_tweets = 3, $timezone = "America/Denver") {  $include_replies = false;  date_default_timezone_set($timezone);  // the html markup  $cont_o  = "<div id=/"tweets/">/n";  $tweet_o = "<div class=/"status/">/n";  $tweet_c = "</div>/n/n";  $detail_o = "<div class=/"details/">/n";  $detail_c = "</div>/n/n";  $cont_c  = "</div>/n";  if ($twitter_xml = $this->api_call($twitter_id, $num_of_tweets)) {   $result  = $cont_o;   foreach ($twitter_xml->status as $key => $status) {    if ($include_replies == true | substr_count($status->text, "@") == 0 | strpos($status->text, "@") != 0) {     $tweet = $this->process_links($status->text);     $result .= $tweet_o . $tweet . $tweet_c . $detail_o . date('D jS M y H:i', strtotime($status->created_at)) . $detail_c;    }   }   $result  .= $cont_c;  } else {   $result  .= $cont_o . $tweet_o . "Twitter seems to be unavailable at the moment." . $tweet_c . $cont_c;  }  return $result; }}