note 42352 added to ref.mcrypt

i want to use mcrypt function crosssite. that's to say, crypt string in site A, then transfter encrypted string to site B. but i can only get correct decrypted string in site B randomly, even though i transfer $iv to site B. who can tell me why ? thanks a lot... ---- Manual Page -- http://www.php.net/manual/en/ref.mcrypt.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+42352 Delete -- http://master.php.net/manage/user-notes.php?action=delete+42352&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+42352&report=yes Search -- http://master.php.net/manage/user-notes.php