<?php    class httpClient {             public $buffer = null;      // buffer 获取返回的字符串      public $referer = null;     // referer 设置 HTTP_REFERER 的网址      public $response = null;    // response 服务器响应的 header 信息      public $request = null;     // request 发送到服务器的 header 信息      private $args = null;             public static function init(&$instanceof, $args = array()) {          return $instanceof = new self($args);      }             private function __construct($args = array()) {                     if(!is_array($args)) $args = array();          $this->args = $args;          if(!empty($this->args['debugging'])) {              ob_end_clean();              set_time_limit(0);              header('Content-Type: text/plain; charset=utf-8');          }                 }             public function get($url, $data = null, $cookie = null) {            $parse = parse_url($url);          $url .= isset($parse['query']) ? '&'. $data : ( $data ? '?'. $data : '' );          $host = $parse['host'];                     $header  = 'Host: '. $host. "\\r\\n";          $header .= 'Connection: close'. "\\r\\n";          $header .= 'Accept: */*'. "\\r\\n";          $header .= 'User-Agent: '. ( isset($this->args['userAgent']) ? $this->args['userAgent'] : $_SERVER['HTTP_USER_AGENT'] ). "\\r\\n";          $header .= 'DNT: 1'. "\\r\\n";          if($cookie) $header .= 'Cookie: '. $cookie. "\\r\\n";          if($this->referer) $header .= 'Referer: '. $this->referer. "\\r\\n";                     $options = array();          $options['http']['method'] = 'GET';          $options['http']['header'] = $header;                     $response = get_headers($url);          $this->request = $header;          $this->response = implode("\\r\\n", $response);          $context = stream_context_create($options);          return $this->buffer = file_get_contents($url, false, $context);                 }             public function post($url, $data = null, $cookie = null) {                     $parse = parse_url($url);          $host = $parse['host'];                     $header  = 'Host: '. $host. "\\r\\n";          $header .= 'Connection: close'. "\\r\\n";          $header .= 'Accept: */*'. "\\r\\n";          $header .= 'User-Agent: '. ( isset($this->args['userAgent']) ? $this->args['userAgent'] : $_SERVER['HTTP_USER_AGENT'] ). "\\r\\n";          $header .= 'Content-Type: application/x-www-form-urlencoded'. "\\r\\n";          $header .= 'DNT: 1'. "\\r\\n";          if($cookie) $header .= 'Cookie: '. $cookie. "\\r\\n";          if($this->referer) $header .= 'Referer: '. $this->referer. "\\r\\n";          if($data) $header .= 'Content-Length: '. strlen($data). "\\r\\n";                     $options = array();          $options['http']['method'] = 'POST';          $options['http']['header'] = $header;          if($data) $options['http']['content'] = $data;                     $response = get_headers($url);          $this->request = $header;          $this->response = implode("\\r\\n", $response);          $context = stream_context_create($options);          return $this->buffer = file_get_contents($url, false, $context);                 }         }    httpClient::init($httpClient, array( 'debugging' => true , 'userAgent' => 'MSIE 15.0' ));  $httpClient->get('http://www.baidu.com', 'name=haowei');  echo $httpClient->request; // 获取 请求头部信息  echo $httpClient->response; // 获取 响应的头部信息  echo $httpClient->buffer; // 获取 网页内容    $httpClient->get('http://accounts.haowei.me/ServiceLogin/', 'hash='. $time, 'uid=1;users=admin;')    echo $httpClient->buffer;