$http = new Http();         // 实例化对象
    $result =  $http->get('http://weibo.com/at/comment');

$http = new Http();         // 实例化对象
$result = $http->post('http://someurl.com/post-new-article', array('title'=>$title, 'body'=>$body) );

$http = new Http();         // 实例化对象
$http->setCookiepath(substr(md5($username), 0, 10));        // 设置 cookie, 如果是多个用户请求的话
// 提交 post 数据
$loginData = $http->post('http://login.sina.com.cn/sso/login.php?client=ssologin.js(v1.3.19)', array('username'=>$username, 'loginPass'=>$password) );
$result =  $http->get('http://weibo.com/at/comment');

$httpConfig['method']     = 'GET';
$httpConfig['target']     = 'http://www.somedomain.com/index.html';
$httpConfig['referrer']   = 'http://www.somedomain.com';
$httpConfig['user_agent'] = 'My Crawler';
$httpConfig['timeout']    = '30';
$httpConfig['params']     = array('var1' => 'testvalue', 'var2' => 'somevalue');

$http = new Http();
$http->initialize($httpConfig);

$result = $http->result;

$http = new Http();
$http->useCurl(false);      // 不使用 curl
$http->setMethod('POST');       // 使用 POST method

// 设置 POST 数据
$http->addParam('user_name' , 'yourusername');
$http->addParam('password'  , 'yourpassword');

// Referrer
$http->setReferrer('https://yourproject.projectpath.com/login');

// 开始执行请求
$http->execute('https://yourproject.projectpath.com/login/authenticate');
$result = $http->getResult();

$http = new Http();

// Set HTTP basic authentication realms
$http->setAuth('yourusername', 'yourpassword');

// 获取某个被保护的应用的 feed
$http->get('http://www.someblog.com/protected/feed.xml');

$result = $http->result;