diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index e83fe9c..ace369d 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -695,6 +695,7 @@ class HttpClient
 			if (!is_string($data)) {
 				curl_setopt($ch, CURLOPT_POSTFIELDS, $this->mergeParams($data));
 			} else {
+				var_dump($data);
 				curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
 			}
 		}