添加PC的api gzip

@@ -152,9 +152,11 @@ class Yohobuy
      * @parma mixed $cache 控制是否启用接口数据的缓存(时间单位为秒). 如3600表示缓存1小时, false表示不缓存
      * @param bool $returnJson 控制是否返回json格式数据
      * @param int $timeout 超时时间
+     * @param null $userAgent
+     * @param bool $useGzip 是否启用Gzip
      * @return mixed
      */
-    public static function get($url, $data = array(), $cache = false, $returnJson = false, $timeout = 5, $userAgent = null)
+    public static function get($url, $data = array(), $cache = false, $returnJson = false, $timeout = 5, $userAgent = null, $useGzip = true)
     {
         // 销毁私钥参数
         if (isset($data['private_key'])) {
@@ -175,6 +177,9 @@ class Yohobuy
         curl_setopt($ch, CURLOPT_HEADER, 0);
         curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        if ($useGzip) {  
+            curl_setopt($ch, CURLOPT_ENCODING, 'gzip');
+        }
         if (!empty($userAgent)) {
             curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
         }