diff --git a/src/system/helper/filter.php b/src/system/helper/filter.php
index e8b85d1..149c33b 100644
--- a/src/system/helper/filter.php
+++ b/src/system/helper/filter.php
@@ -4,7 +4,7 @@ class Filter {
 
   public static function userName(mixed $string) {
 
-    $string = preg_replace('/[^a-zA-Z0-9_]+/u', '', $string);
+    $string = preg_replace('/[^a-zA-Z0-9_]+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 16);
 
@@ -13,71 +13,76 @@ class Filter {
 
   public static function userPrivateKey(mixed $string) {
 
-    return preg_replace('/[^a-zA-Z0-9_]+/u', '', $string);
+    return preg_replace('/[^a-zA-Z0-9_]+/u', '', (string) $string);
   }
 
   public static function blockHash(mixed $string) {
 
-    return preg_replace('/[^a-zA-Z0-9]+/u', '', $string);
+    return preg_replace('/[^a-zA-Z0-9]+/u', '', (string) $string);
   }
 
-  public static function fullName(string $string) {
+  public static function fullName(mixed $string) {
 
-    $string = preg_replace('/[^\s\w]+/u', '', $string);
+    $string = preg_replace('/[^\s\w]+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 200);
 
     return $string;
   }
 
-  public static function location(string $string) {
+  public static function sigUserPost(mixed $string) {
 
-    $string = preg_replace('/[^\s\w\.\,]+/u', '', $string);
+    return preg_replace('/[^a-zA-Z0-9]+/u', '', (string) $string);
+  }
+
+  public static function location(mixed $string) {
+
+    $string = preg_replace('/[^\s\w\.\,]+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 200);
 
     return $string;
   }
 
-  public static function url(string $string) {
+  public static function url(mixed $string) {
 
-    $string = preg_replace('/[^\w\?\&\=\.\:\/]+/u', '', $string);
+    $string = preg_replace('/[^\w\?\&\=\.\:\/]+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 200);
 
     return $string;
   }
 
-  public static function bitMessage(string $string) {
+  public static function bitMessage(mixed $string) {
 
-    $string = preg_replace('/[^\w\-]+/u', '', $string);
+    $string = preg_replace('/[^\w\-]+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 200);
 
     return $string;
   }
 
-  public static function tox(string $string) {
+  public static function tox(mixed $string) {
 
-    $string = preg_replace('/[^\w]+/u', '', $string);
+    $string = preg_replace('/[^\w]+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 200);
 
     return $string;
   }
 
-  public static function bio(string $string) {
+  public static function bio(mixed $string) {
 
-    $string = preg_replace('/[^\s\w\.\,\:\;\@\?\!\+\`\&\^\%\#\=\-\_\~\*\/\(\)\[\]\<\>\"\']+/u', '', $string);
+    $string = preg_replace('/[^\s\w\.\,\:\;\@\?\!\+\`\&\^\%\#\=\-\_\~\*\/\(\)\[\]\<\>\"\']+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 500);
 
     return $string;
   }
 
-  public static function post(string $string) {
+  public static function post(mixed $string) {
 
-    $string = preg_replace('/[^\s\w\.\,\:\;\@\?\!\+\`\&\^\%\#\=\-\_\~\*\/\(\)\[\]\<\>\"\']+/u', '', $string);
+    $string = preg_replace('/[^\s\w\.\,\:\;\@\?\!\+\`\&\^\%\#\=\-\_\~\*\/\(\)\[\]\<\>\"\']+/u', '', (string) $string);
 
     $string = mb_substr($string, 0, 140);
 
@@ -93,4 +98,43 @@ class Filter {
 
     return (int) $int;
   }
+
+  public static function userPost(mixed $userPost) {
+
+    $result = [];
+    foreach ((array) $userPost as $key => $value) {
+
+      switch ($key) {
+        case 'height':
+          $result[$key] = self::int($value);
+        break;
+        case 'time':
+          $result[$key] = self::int($value);
+        break;
+        case 'k':
+          $result[$key] = self::int($value);
+        break;
+        case 'lastk':
+          $result[$key] = self::int($value);
+        break;
+        case 'n':
+          $result[$key] = self::userName($value);
+        break;
+        case 'msg':
+          $result[$key] = self::post($value);
+        break;
+        case 'msg2':
+          $result[$key] = self::post($value);
+        break;
+        case 'sig_rt':
+          $result[$key] = self::sigUserPost($value);
+        break;
+        case 'rt':
+          $result[$key] = self::userPost($value);
+        break;
+      }
+    }
+
+    return $result;
+  }
 }