How to repair a serialized string which has been corrupted by an incorrect byte count length?

Question

I am using Hotaru CMS with the Image Upload plugin, I get this error if I try to attach an image to a post, otherwise there is no error:

unserialize()

Answer 1

This error is caused because your charset is wrong.

Set charset after open tag:

header('Content-Type: text/html; charset=utf-8');

And set charset utf8 in your database :

mysql_query("SET NAMES 'utf8'");