diff --git a/src/Http/Request.php b/src/Http/Request.php
index 5819e87..ac54e55 100644
--- a/src/Http/Request.php
+++ b/src/Http/Request.php
@@ -197,11 +197,6 @@ class Request
 
     // QUERY
 
-    /**
-     * @param string $key
-     * @param mixed $default
-     * @return mixed
-     */
     public function query_all() {
         return $_GET;
     }
diff --git a/src/Str.php b/src/Str.php
index 37e5465..31777ca 100644
--- a/src/Str.php
+++ b/src/Str.php
@@ -109,7 +109,7 @@ class Str
      * @param string $str
      * @return string
      */
-    public function to_url($str) {
+    public static function to_url($str) {
         $str = trim($str);
         $str = strtolower($str);
         $str = self::vn2en($str);
@@ -125,4 +125,9 @@ class Str
 
         return $str;
     }
+    
+    public static function nl2p($text)
+    {
+        return str_replace(["\r\n", "\r", "\n"], '<p></p>', $text);
+    }
 }
diff --git a/src/StrReg.php b/src/StrReg.php
new file mode 100644
index 0000000..84c9a50
--- /dev/null
+++ b/src/StrReg.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Nightmare;
+
+class StrReg
+{
+    
+}