#27688 [Opn->Asn]: Session names consisting of only numbers cause session id generation

ID: 27688 Updated by: amt@php.net Reported By: ryan at daelibs dot com dot au -Status: Open +Status: Assigned Bug Type: Session related Operating System: Redhat 9 PHP Version: 5.0.0RC1 -Assigned To: +Assigned To: amt New Comment: This happens because PHP turns a numeric session name into an array index inside $_COOKIE and we're doing an zend_hash_find() instead of a zend_hash_index_find(). (ext/session/session.c, line 1098). We can probably fix the bug by doing a zend_hash_index_find() instead if the session name successfully converts to a integer. Previous Comments: ------------------------------------------------------------------------ [2004-03-29 04:53:03] unknown at simplemachines dot org Here's a simple workaround: <?php // This name works. //session_name('A9'); // This name doesn't... session_name('99'); // Force the last session id, not the detected one. session_id($_COOKIE[session_name()]); session_start(); echo ' Session Name: ', session_name(), '<br /> Session ID: ', session_id(), '<br /> Cookie: ', $_COOKIE[session_name()]; ?> Removing the session_id() line though, shows that the cookie is still being properly set. -[Unknown] ------------------------------------------------------------------------ [2004-03-25 10:23:02] nlopess@php.net Confirmed. Is this really a doc issue? ------------------------------------------------------------------------ [2004-03-25 00:00:26] ryan at daelibs dot com dot au Description: ------------ When you use a session name that has only numbers, each call to session_start seems to regenerate a new session id, so the session does not persist. The code below can be loaded and refreshed to reproduce the behaviour Reproduce code: --------------- <?php //This name works //session_name('A9'); //This name doesn't session_name('99'); session_start(); echo 'Session Name: '.session_name().'<br />'; echo 'Session Id: '.session_id().'<br />'; ?> Expected result: ---------------- Session Name: 99 Session Id: {{a sid that remains the same between each refresh }} Actual result: -------------- Session Name: 99 Session Id: {{a different sid each refresh}} ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=27688&edit=1