function getNetWorkSpeed() { $time_start = ACloud_Sys_Core_Common::getMicrotime(); require_once ACLOUD_PATH . '/system/core/sys.core.http.php'; $result = ACloud_Sys_Core_Http::sendPost($this->buildPostParams('env.ping', array('speed' => $time_start))); $time_end = is_object($result) && $result->code == 100 ? ACloud_Sys_Core_Common::getMicrotime() : $time_start - 1; return number_format($time_end - $time_start, 4); }