protected static function _request($url, $input) {
$curl = curl_init ();
curl_setopt ( $curl, CURLOPT_URL, $url );
curl_setopt ( $curl, CURLOPT_TIMEOUT, 3 );
curl_setopt ( $curl, CURLOPT_CONNECTTIMEOUT, 3 );
curl_setopt ( $curl, CURLOPT_POST, 1 );
curl_setopt ( $curl, CURLOPT_POSTFIELDS, $input );
$urlArr = parse_url ( $url );
$port = empty ( $urlArr ['port'] ) ? 80 : $urlArr ['port'];
curl_setopt ( $curl, CURLOPT_PORT, $port );
curl_setopt ( $curl, CURLOPT_HTTPHEADER, array ('Expect:') );
// 获取的信息以文件流的形式返回,不直接输出
curl_setopt ( $curl, CURLOPT_RETURNTRANSFER, true );
$response = curl_exec ( $curl );
self::$_HTTP_CODE = curl_getinfo($curl, CURLINFO_HTTP_CODE);
self::$_HTTP_INFO = curl_getinfo($curl);
self::$_HTTP_ERROR_CODE = curl_errno($curl);
self::$_HTTP_ERROR = curl_error($curl);
self::$_URL = $url;
curl_close($curl);
return $response;
}
