diff --git a/sdk.php b/sdk.php
index 0a14fef6..c0e2b488 100644
--- a/sdk.php
+++ b/sdk.php
@@ -249,7 +249,7 @@ public static function build_http_query_multi($params) {
 
         foreach ($params as $parameter => $value) {
 
-            if( in_array($parameter, array('pic', 'image')) && $value{0} == '@' ) {
+            if( in_array($parameter, array('pic', 'image')) && $value[0] == '@' ) {
                 $url = ltrim( $value, '@' );
                 $content = file_get_contents( $url );
                 $array = explode( '?', basename( $url ) );
diff --git a/sendsms.php b/sendsms.php
index ee601c15..4a2ee352 100644
--- a/sendsms.php
+++ b/sendsms.php
@@ -3,21 +3,23 @@
 include_once "config.php";
 include_once "sdk.php";
 
-
-
-
 if($argc < 3){
-    print "php ./sendsms.php '1377777777777|137888888888' 'UCLOUD'".PHP_EOL;
+    print "php ./sendsms.php '1377777777777|137888888888' '010086'".PHP_EOL;
     exit;
 }
 
 $conn = new UcloudApiClient(BASE_URL, PUBLIC_KEY, PRIVATE_KEY, PROJECT_ID);
-$params['Action'] = "SendSms";
-$params["Content"] = $argv[2];
+$params['Action'] = "SendUSMSMessage";
 
 $phones = explode("|", $argv[1]);
 foreach($phones as $key => $val){
-    $params["Phone.".$key] = $val;
+    $params["PhoneNumbers.".$key] = $val;
 }
 
+$params['SigContent'] = "...";
+$params['TemplateId'] = "...";
+$params['TemplateParams.0'] = $argv[2];
+
+print_r($params);
+
 print_r($response = $conn->get("/", $params));