note 94437 added to function.session-start

I've found a session "bug" on IE (from 6.0 to 8.0)... This simple script (test.php): <?php session_start(); $_SESSION['test'].=" - "; print_r($_SESSION); ?> don't works if domain name contains a "_". In my case, the script works on: http://test.mydomain.com:8080/test.php but don't works on: http://test_v1.mydomain.com:8080/test.php Can you try? Thanks, Antonio ---- Server IP: 69.147.83.197 Probable Submitter: 93.63.190.251 ---- Manual Page -- http://www.php.net/manual/en/function.session-start.php Edit -- https://master.php.net/note/edit/94437 Del: integrated -- https://master.php.net/note/delete/94437/integrated Del: useless -- https://master.php.net/note/delete/94437/useless Del: bad code -- https://master.php.net/note/delete/94437/bad+code Del: spam -- https://master.php.net/note/delete/94437/spam Del: non-english -- https://master.php.net/note/delete/94437/non-english Del: in docs -- https://master.php.net/note/delete/94437/in+docs Del: other reasons-- https://master.php.net/note/delete/94437 Reject -- https://master.php.net/note/reject/94437 Search -- https://master.php.net/manage/user-notes.php