diff --git a/demo/fetch.php b/demo/fetch.php
new file mode 100644
index 00000000..46e903dd
--- /dev/null
+++ b/demo/fetch.php
@@ -0,0 +1,11 @@
+<?php
+
+require_once('../qiniu/rs.php');
+require_once('../qiniu/conf.php');
+
+$client = new Qiniu_MacHttpClient(null);
+$ret = Qiniu_RS_Fetch($client, 'http://rwxf.qiniucdn.com/1.jpg', 'rwxf', 'qiniu.jpg');
+
+var_dump($ret);
+
+
diff --git a/demo/pfop.php b/demo/pfop.php
new file mode 100644
index 00000000..3afdcfed
--- /dev/null
+++ b/demo/pfop.php
@@ -0,0 +1,22 @@
+<?php
+require_once('../qiniu/pfop.php');
+require_once('../qiniu/http.php');
+
+$client = new Qiniu_MacHttpClient(null);
+
+$pfop = new Qiniu_Pfop();
+
+$pfop->Bucket = 'rwxf';
+$pfop->Key = '1.mp4';
+
+$savedKey = 'qiniu.jpg';
+$entry = Qiniu_Encode("$pfop->Bucket:$savedKey");
+$pfop->Fops = "vframe/jpg/offset/180/w/1000/h/1000/rotate/90|saveas/$entry";
+
+list($ret, $err) = $pfop->MakeRequest($client);
+echo "\n\n====> pfop result: \n";
+if ($err !== null) {
+    var_dump($err);
+} else {
+    var_dump($ret);
+}
diff --git a/demo/sign_req.php b/demo/sign_req.php
new file mode 100644
index 00000000..a57dbef8
--- /dev/null
+++ b/demo/sign_req.php
@@ -0,0 +1,10 @@
+<?php
+require_once('../qiniu/auth_digest.php');
+require('../qiniu/http.php');
+
+$url = 'https://10fd05306325.a.passageway.io/chgm/aXRpc2F0ZXN0OmdvZ29waGVyLmpwZw==/mime/YXBwbGljYXRpb24vdGVzdA==';
+$u = array('path' => $url);
+$req = new Qiniu_Request($u, '');
+$mac = Qiniu_RequireMac(null);
+
+echo $mac->SignRequest($req, true);
diff --git a/demo/up.php b/demo/up.php
new file mode 100644
index 00000000..6922a57d
--- /dev/null
+++ b/demo/up.php
@@ -0,0 +1,29 @@
+<?php
+
+require_once('../qiniu/io.php');
+require_once('../qiniu/rs.php');
+
+$bucket = 'rwxf';
+$key = 'up.php';
+$file = __FILE__;
+
+
+$client = new Qiniu_MacHttpClient(null);
+$putPolicy = new Qiniu_RS_PutPolicy($bucket);
+$putPolicy->Scope = "$bucket:$key";
+$putPolicy->CallbackUrl = 'https://10fd05306325.a.passageway.io';
+$putPolicy->CallbackBody = 'key=$(key)&hash=$(etag)';
+$upToken = $putPolicy->Token(null);
+
+$putExtra = new Qiniu_PutExtra();
+$putExtra->Crc32 = 1;
+$s = time();
+list($ret, $err) = Qiniu_PutFile($upToken, $key, $file, $putExtra);
+echo "time elapse:". (time() - $s) . "\n";
+echo "\n\n====> Qiniu_PutFile result: \n";
+if ($err !== null) {
+    var_dump($err);
+} else {
+    var_dump($ret);
+}
+
diff --git a/qiniu/conf.php b/qiniu/conf.php
index 67ff068c..7ff155fa 100644
--- a/qiniu/conf.php
+++ b/qiniu/conf.php
@@ -4,7 +4,7 @@
 global $QINIU_UP_HOST;
 global $QINIU_RS_HOST;
 global $QINIU_RSF_HOST;
- 
+
 global $QINIU_ACCESS_KEY;
 global $QINIU_SECRET_KEY;
 
@@ -13,7 +13,8 @@
 $QINIU_UP_HOST	= 'http://up.qiniu.com';
 $QINIU_RS_HOST	= 'http://rs.qbox.me';
 $QINIU_RSF_HOST	= 'http://rsf.qbox.me';
+$QINIU_API_HOST = 'http://api.qiniu.com';
+$QINIU_IOVIP_HOST = 'http://iovip.qbox.me';
 
 $QINIU_ACCESS_KEY	= '<Please apply your access key>';
 $QINIU_SECRET_KEY	= '<Dont send your secret key to anyone>';
-
diff --git a/qiniu/pfop.php b/qiniu/pfop.php
new file mode 100644
index 00000000..cd1a4db6
--- /dev/null
+++ b/qiniu/pfop.php
@@ -0,0 +1,48 @@
+<?php
+require_once('auth_digest.php');
+
+// --------------------------------------------------------------------------------
+// class Qiniu_Pfop
+
+class Qiniu_Pfop {
+
+    public $Bucket;
+    public $Key;
+    public $Fops;
+    public $NotifyURL;
+    public $Force;
+    public $Pipeline;
+
+    public function MakeRequest($self)
+    {
+
+        global $QINIU_API_HOST;
+
+        $ReqParams = array(
+            'bucket' => $this->Bucket,
+            'key' => $this->Key,
+            'fops' => $this->Fops,
+            'notifyURL' => $this->NotifyURL,
+            'force' => $this->Force,
+    	    'pipeline' => $this->Pipeline
+        );
+
+        $url = $QINIU_API_HOST . '/pfop/';
+
+        return Qiniu_Client_CallWithForm($self, $url, $ReqParams);
+    }
+
+}
+
+function Qiniu_PfopStatus($client, $id)
+{
+    global $QINIU_API_HOST;
+
+    $url = $QINIU_API_HOST . '/status/get/prefop?';
+    $params = array('id' => $id);
+
+    return Qiniu_Client_CallWithForm($client, $url, $params);
+}
+
+
+
diff --git a/qiniu/rs.php b/qiniu/rs.php
index 425ba8f3..55a5090a 100644
--- a/qiniu/rs.php
+++ b/qiniu/rs.php
@@ -254,5 +254,16 @@ function Qiniu_RS_BatchCopy($self, $entryPairs)
 	return Qiniu_RS_Batch($self, $params);
 }
 
+// ----------------------------------------------------------
+// fetch
+function Qiniu_RS_Fetch($self, $url, $bucket, $key)
+{
+
+	global $QINIU_IOVIP_HOST;
+	$path = '/fetch/' . Qiniu_Encode($url) . '/to/' . Qiniu_Encode("$bucket:$key");
+	return Qiniu_Client_CallNoRet($self, $QINIU_IOVIP_HOST . $path);
+}
+
+
 // ----------------------------------------------------------