diff --git a/sky-php7ext/README.md b/sky-php7ext/README.md
index b813786d343763fd4407fd758badcd47c24ea6d5..3ad96ce0e1d8ab031662efbb4640f2fad880a3ab 100644
--- a/sky-php7ext/README.md
+++ b/sky-php7ext/README.md
@@ -11,41 +11,44 @@
 
 ### Installation
 
-To install PHP SkyWalking Class, simply:
-
-
+To install PHP SkyWalking extend, simply:
+copy ini to php.ini
+commands::
+	
+	git clone https://github.com/SkywalkingContrib/skywalking-php-sdk.git
+	cd skywalking-php-sdk/sky-php7ext
+	phpize
+	.configure
+	make -j [number_of_processor_cores] # eg. make -j 4
+	make install
 ### Requirements
 
-PHP Curl Class works with PHP 5.0,5.3, 5.4, 5.5, 5.6, 7.0, and HHVM.
+the current phpext works with PHP 7.0-7.9.99 。
+this extension references something external, use with: pphcurl、phpjson and phpstandard
+
+### Documentation
+- https://github.com/OpenSkywalking/skywalking/wiki
 
 ### Quick Start and Examples
-    
+    set php.ini skywalking.auto_open = On OR  skywalking.auto_open = OFF As below:
+
     // must put these code at the beginning !!!
-    // that would auto register shutdown function !!!
-    
-    include_once ("./SkyWalking.php");// or use composer
-    
-    //LOG_PATH is skywalking's logfile path
-    SkyWalking::getInstance("mapi")->setLogPath(LOG_PATH)->setSamplingRate(5);
     
     ....
     ....
-
+    
+    
     $ch = curl_init();
     curl_setopt($ch);
     
-    ....
-    ....
-
-    SkyWalking::getInstance()->startSpanOfCurl("www.dangdang.com", $headers);
-    
+    SkyWalking::getInstance()->startSpanOfCurl("www.api.com", $headers);
     ....
     ....
     
     curl_setopt($ch);
     $rs = curl_exec($ch);
     
-    SkyWalking::getInstance()->endSpanOfcurl($curl);
+    SkyWalking::getInstance()->endSpanOfcurl($ch);
     
     ....
     ....
\ No newline at end of file
diff --git a/sky-php7ext/skywalking.c b/sky-php7ext/skywalking.c
index c8273e35627245bdf9b1d840be96a03a85dd6437..d085a230b92a0e95aa2191f3b8e0ccb9cf18a361 100644
--- a/sky-php7ext/skywalking.c
+++ b/sky-php7ext/skywalking.c
@@ -925,8 +925,6 @@ static void _init(const char *appCode, zval *this_ptr){
   	add_assoc_null(&allparts_property, SKYWALKING_ENDTIME);
   	SKY_ADD_ASSOC_ZVAL(&allparts_property, SKYWALKING_FATHER_NODE_DATA);
   	SKY_ADD_ASSOC_ZVAL(&allparts_property, SKYWALKING_SPANS_NODE_DATA);
-  	//add_assoc_zval(&allparts_property, SKYWALKING_FATHER_NODE_DATA, &null_array);
-  	//add_assoc_zval(&allparts_property, SKYWALKING_SPANS_NODE_DATA, &null_array);
   	add_assoc_null(&allparts_property, SKYWALKING_APP_CODE);
   	add_assoc_null(&allparts_property, SKYWALKING_DISTRIBUTED_TRACEIDS);
   	zend_update_property(skywalking_ce_entry, this_ptr,  ZEND_STRL("_allPartsNodesStruct"), &allparts_property);
@@ -975,7 +973,7 @@ static void _init(const char *appCode, zval *this_ptr){
 
 	zend_update_property_string(skywalking_ce_entry, this_ptr, ZEND_STRL("_appCode"), appCode);
 
-	//对节点数据进行结构初始化  
+	//对节点数据进行结构初始化
 	zval *all_parts_nodes_struct, all_node_data;
 	all_parts_nodes_struct = zend_read_property(skywalking_ce_entry, this_ptr, ZEND_STRL("_allPartsNodesStruct"), 1, NULL);
 	array_init(&all_node_data);