怎么样使用SAE实时日志接口SDK？

class SaeApiHandler{
 /**
 * 定义accessKey
 */
 private $accessKey;
 /**
 * 定义secretKey
 */
 private $secretKey;
 /**
 * 定义时间戳
 */
 private $timestamp;
 /**
 * 构造函数
 */
 public function __construct($key,$sec){
  $this->accessKey = $key;
  $this->secretKey = $sec;
  $this->timestamp = time();
 }
 /**
 * 重载get方法
 */
 public function __call($name,$arg){
  $ret = array();
  if (is_array($arg[0])) {
   $len = count($arg);
   for ($i=0; $i < $len; $i++) {
    $ret[$i] = $arg[$i]['fop'] ? $this->$name($arg[$i]['service'],$arg[$i]['date'],$arg[$i]['ident'],$arg[$i]['fop']):$this->$name($arg[$i]['service'],$arg[$i]['date'],$arg[$i]['ident']);
   }
  }else{
   $ret = $arg[3] ? $this->$name($arg[0],$arg[1],$arg[2],$arg[3]) : $this->get($arg[0],$arg[1],$arg[2]);
  }
  return $ret;
 }
 /**
 * 获取日志
 * @param string 需要的日志
 * @param string 时间
 * @param string 日志类型
 * @param string 过滤符
 * @return array
 */
 private function getLog($service,$date,$ident,$fop=null){
  if ($fop) {
   $uri = '/log/'.$service.'/'.$date.'/'.$_SERVER['HTTP_APPVERSION'].'-'.$ident.'.log?'.$fop;
  }else{
   $uri = '/log/'.$service.'/'.$date.'/'.$_SERVER['HTTP_APPVERSION'].'-'.$ident.'.log';
  }
  $ret = explode(PHP_EOL,$this->get($uri));
  array_splice($ret,0,7);
  array_pop($ret);
  return $ret;
 }
 private function get($uri){
  $host = 'http://g.sae.sina.com.cn'.$uri;
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL,$host);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_HTTPHEADER, $this->saeHeader($uri));
  curl_setopt($ch, CURLOPT_HEADER, 1);
  $ret = curl_exec($ch);
  curl_close($ch);
  return $ret;
 }
 /**
 * SAE请求头
 * @return array
 */
 private function saeHeader($uri){
  return array(
    'Host: g.sae.sina.com.cn',
    'Accept: text/plain',
    'x-sae-accesskey: '.$this->accessKey,
    'x-sae-timestamp: '.$this->timestamp,
    'Authorization: '. $this->getAuthorization($uri)
   );
 }
 /**
 * 获取gAuthorization
 */
 private function getAuthorization($uri){
  $header = array(
    'x-sae-timestamp' => $this->timestamp,
    'x-sae-accesskey' => strtolower($this->accessKey)
   );
  ksort($header);
  $sae_header = array('GET',$uri);
  foreach ($header as $key => $value) {
   $sae_header[count($sae_header)] = $key.':'.$value;
  }
  $ret = implode(PHP_EOL, $sae_header);
  $auth = 'SAEV1_HMAC_SHA256 '.base64_encode(hash_hmac('sha256',$ret,$this->secretKey,true));
  return $auth;
 }
}

$test = new SaeApiHandler(SAE_ACCESSKEY,SAE_SECRETKEY);
$arr1 = array(
 'service'=>'http',
 'date'=>'2015-07-03',
 'ident'=>'access',
 'fop'=>'head/1/5'
 );
$arr2 = array(
 'service'=>'http',
 'date'=>'2015-07-03',
 'ident'=>'access',
 'fop'=>'head/1/5'
 );
$ret = $test->getLog($arr1,$arr2);
var_dump($ret);