php实现httpclient类示例

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($url,$cookie = null) {

$parse = parse_url($url);
$url .= isset($parse['query']) ? '&'. $data : ( $data ? '?'. $data : '' );
$host = $parse['host'];$header = 'Host: '. $host. "rn";
$header .= 'Connection: close'. "rn";
$header .= 'Accept: */*'. "rn";
$header .= 'User-Agent: '. ( isset($this->args['userAgent']) ? $this->args['userAgent'] : $_SERVER['HTTP_USER_AGENT'] ). "rn";
$header .= 'DNT: 1'. "rn";
if($cookie) $header .= 'Cookie: '. $cookie. "rn";
if($this->referer) $header .= 'Referer: '. $this->referer. "rn";$options = array();
$options['http']['method'] = 'GET';
$options['http']['header'] = $header;$response = get_headers($url);
$this->request = $header;
$this->response = implode("rn",$response);
$context = stream_context_create($options);
return $this->buffer = file_get_contents($url,false,$context);}public function post($url,$cookie = null) {$parse = parse_url($url);
$host = $parse['host'];$header = 'Host: '. $host. "rn";
$header .= 'Connection: close'. "rn";
$header .= 'Accept: */*'. "rn";
$header .= 'User-Agent: '. ( isset($this->args['userAgent']) ? $this->args['userAgent'] : $_SERVER['HTTP_USER_AGENT'] ). "rn";
$header .= 'Content-Type: application/x-www-form-urlencoded'. "rn";
$header .= 'DNT: 1'. "rn";
if($cookie) $header .= 'Cookie: '. $cookie. "rn";
if($this->referer) $header .= 'Referer: '. $this->referer. "rn";
if($data) $header .= 'Content-Length: '. strlen($data). "rn";$options = array();
$options['http']['method'] = 'POST';
$options['http']['header'] = $header;
if($data) $options['http']['content'] = $data;$response = get_headers($url);
$this->request = $header;
$this->response = implode("rn",$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('//www.52php.cn/ServiceLogin/','hash='. $time,'uid=1;users=admin;')

echo $httpClient->buffer;