diff --git a/v1/del_bom_header.php b/v1/del_bom_header.php
new file mode 100644
index 0000000..6fab240
--- /dev/null
+++ b/v1/del_bom_header.php
@@ -0,0 +1,53 @@
+<?php
+if (isset($_GET['dir'])) { //设置文件目录 
+    $basedir = $_GET['dir']; 
+    }else{ 
+    $basedir = '.'; 
+} 
+$auto = true; //定义是否去掉文件中的BOM头，如果为 false 则只检测是否含有 BOM 头
+checkdir($basedir);//检测目录
+function checkdir($basedir){
+    if ($dh = opendir($basedir)) {
+        while (($file = readdir($dh)) !== false) {
+            if($file{0} == '.'){
+                continue;
+            }
+            if($file != '.' && $file != '..'){
+                if (!is_dir($basedir."/".$file)) {
+                    echo "filename: $basedir/$file ".checkBOM("$basedir/$file")." <br>";
+                }else{
+                    $dirname = $basedir."/".$file;
+                    checkdir($dirname);
+                }
+            }
+        }
+        closedir($dh);
+    }
+}
+//检查文件是否有BOM头，通过 全局变量 $auto 来控制是否删除文件中的BOM头
+function checkBOM ($filename) {
+    global $auto;
+    $contents = file_get_contents($filename);
+    $charset[1] = substr($contents, 0, 1);
+    $charset[2] = substr($contents, 1, 1);
+    $charset[3] = substr($contents, 2, 1);
+    if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
+        if ($auto) {
+            $rest = substr($contents, 3);
+            rewrite ($filename, $rest);
+            return ("<font color=red>BOM found, automatically removed.</font>");
+        } else {
+            return ("<font color=red>BOM found.</font>");
+        }
+    }else{
+        return ("BOM Not Found.");
+    }    
+}
+//重写文件，以达到删除BOM头的目的
+function rewrite ($filename, $data) {
+    $filenum = fopen($filename, "w");
+    flock($filenum, LOCK_EX);
+    fwrite($filenum, $data);
+    fclose($filenum);
+}
+?>
diff --git a/v1/demo/listobjects.php b/v1/demo/listobjects.php
index 688a8ed..05210ab 100644
--- a/v1/demo/listobjects.php
+++ b/v1/demo/listobjects.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 require_once("../ucloud/proxy.php");
 
diff --git a/v1/ucloud/conf.php b/v1/ucloud/conf.php
index 00e5c72..d59349c 100644
--- a/v1/ucloud/conf.php
+++ b/v1/ucloud/conf.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 global $SDK_VER;
 global $UCLOUD_PROXY_SUFFIX;
diff --git a/v1/ucloud/digest.php b/v1/ucloud/digest.php
index 4958f4b..5163d2e 100644
--- a/v1/ucloud/digest.php
+++ b/v1/ucloud/digest.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 require_once("utils.php");
 require_once("conf.php");
diff --git a/v1/ucloud/http.php b/v1/ucloud/http.php
index 878d45e..c5353d6 100644
--- a/v1/ucloud/http.php
+++ b/v1/ucloud/http.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 require_once("conf.php");
 require_once("utils.php");
diff --git a/v1/ucloud/mimetypes.php b/v1/ucloud/mimetypes.php
index fae4604..f253908 100644
--- a/v1/ucloud/mimetypes.php
+++ b/v1/ucloud/mimetypes.php
@@ -1,4 +1,4 @@
-<?php
+<?php
     
 global $mimetype_complete_map;
 $mimetype_complete_map = array(
diff --git a/v1/ucloud/utils.php b/v1/ucloud/utils.php
index 05d3fc6..0b7f050 100644
--- a/v1/ucloud/utils.php
+++ b/v1/ucloud/utils.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 require_once("mimetypes.php");