diff --git a/src/Webmodel.php b/src/Webmodel.php
index 0a2553c..aba02e0 100644
--- a/src/Webmodel.php
+++ b/src/Webmodel.php
@@ -993,7 +993,6 @@ class Webmodel {
 	/**
 	* A helper function for obtain the last insert id.
 	*
-	* @param mixed $query The last insert id.
 	*/
 	
 	public function insert_id()
@@ -1004,6 +1003,19 @@ class Webmodel {
 		return MySQLClass::webtsys_insert_id();
 	
 	}
+	
+	/**
+	* A helper function for escape query strings
+	*
+	* @param string $value The query string to escape.
+	*/
+	
+	static public function escape_string($value)
+	{
+		
+		return MySQLClass::webtsys_escape_string($value);
+	
+	}
 
 	/**
 	* A helper function for get fields names of the model from the array $components