diff --git a/phpBB/db/mysql.php b/phpBB/db/mysql.php
index 256a7361ad..cf86637b29 100644
--- a/phpBB/db/mysql.php
+++ b/phpBB/db/mysql.php
@@ -381,7 +381,8 @@ class sql_db
 
 	function sql_escape($msg)
 	{
-		return mysql_escape_string($msg);
+		return str_replace("'", "''", str_replace('\\', '\\\\', $msg));
+//		return mysql_escape_string($msg);
 	}
 	
 	function sql_error($sql = '')
diff --git a/phpBB/db/mysql4.php b/phpBB/db/mysql4.php
index 1c75cf7139..0742f0966e 100644
--- a/phpBB/db/mysql4.php
+++ b/phpBB/db/mysql4.php
@@ -381,7 +381,8 @@ if (!empty($_REQUEST['explain']))
 
 	function sql_escape($msg)
 	{
-		return mysql_escape_string($msg);
+		return str_replace("'", "''", str_replace('\\', '\\\\', $msg));
+//		return mysql_escape_string($msg);
 	}
 
 	function sql_error($sql = '')