Bug #73140 [NEW]: session_regenerate_id overrides setcookie if names match

From: evgeny dot budakov+phpnet at gmail dot com Operating system: Ubuntu PHP version: 7.0Git-2016-09-21 (Git) Package: HTTP related Bug Type: Bug Bug description:session_regenerate_id overrides setcookie if names match Description: ------------ session_regenerate_id overrides setcookie if names match but domains may differ. In my case domain names were ('domain.com' vs '.domain.com'). The issue arises when I try to delete cookie via setcookie function (on domain 'domain.com') and immediately after I have a call to session_regenerate_id (on domain '.domain.com') Test script: --------------- session_name('test'); session_start(); // PHP 5 setcookie('test', '', time()-10000000, '/', 'thrivemarket.com'); // outputs Set-cookie test = deleted header(thrivemarket.com) session_regenerate_id(true); // Outputs Set-cookie test = (session id) header (.thrivemarket.com) // PHP 7 setcookie('test', '', time()-10000000, '/', 'thrivemarket.com'); // <--- THIS IS THE BUG, unlike in PHP 5 this call is ignored in PHP 7 session_regenerate_id(true); // Outputs Set-cookie test = (session id) header (.thrivemarket.com) Expected result: ---------------- In PHP 7 I expect the "Set-cookie test = deleted" header to be output just as it does in PHP 5 Actual result: -------------- "Set-cookie test = deleted" is not output -- Edit bug report at https://bugs.php.net/bug.php?id=73140&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=73140&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=73140&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=73140&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=73140&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=73140&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=73140&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=73140&r=needscript Try newer version: https://bugs.php.net/fix.php?id=73140&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=73140&r=support Expected behavior: https://bugs.php.net/fix.php?id=73140&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=73140&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=73140&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=73140&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=73140&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=73140&r=dst IIS Stability: https://bugs.php.net/fix.php?id=73140&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=73140&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=73140&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=73140&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=73140&r=mysqlcfg