[Plugin: PDO (SQLite) For WordPress] pdo_db::escape() is different from the original one.

[Plugin: PDO (SQLite) For WordPress] 2.7.0

To add or edit page, I have got a Warning hereunder.

Warning: implode() [function.implode]: Invalid arguments passed in /wordpress/wp-includes/post.php on line 1980

I have tried to fix with this patch.
Almost copy and paste from the wpdb::escape().
Is this right or are there any better way to fix?

Index: /wordpress/wp-content/pdo/db.php
===================================================================
--- /wordpress/wp-content/pdo/db.php	(revision 508)
+++ /wordpress/wp-content/pdo/db.php	(working copy)
@@ -113,8 +113,18 @@
 	 *	@param $string	string	the variable to be escaped
 	 *	@return	string	escaped variable
 	 */
-	function escape($string) {
-		return addslashes($string);
+	function escape($data) {
+		if ( is_array($data) ) {
+			foreach ( (array) $data as $k => $v ) {
+				if ( is_array($v) )
+					$data[$k] = $this->escape( $v );
+				else
+					$data[$k] = addslashes( $v );
+			}
+		} else {
+			$data = addslashes( $data );
+		}
+		return $data;
 	}

 	/**

Note that.
The wordpress try to escape an Array like this at wp-admin/page.php.

array(1) { [0]=> string(4) “page” }

https://www.ads-software.com/extend/plugins/pdo-for-wordpress/