#24380 [Opn->Bgs]: session side-effect bug

ID: 24380 Updated by: sniper@php.net Reported By: akukin at ihug dot co dot nz -Status: Open +Status: Bogus Bug Type: Session related Operating System: win2k & linux PHP Version: 4.3.2 New Comment: Just set "session.bug_compat_42 = 0" in your php.ini. (or if you're using apache, in .htaccess file, using php_value) The error message clearly says: "..unless register_globals is enabled.." "..You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off.." And btw. correct way to unset session variables is to use 'unset()', and this error message actually tells you that you're doing something wrong. Previous Comments: ------------------------------------------------------------------------ [2003-06-28 20:54:32] sniper@php.net Is register_globals on or off? Try this: <?php echo ini_get('register_globals'); ?> ------------------------------------------------------------------------ [2003-06-28 18:39:40] akukin at ihug dot co dot nz Description: ------------ 1. After running the following source code I get: ================================================ Warning: Unknown(): Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0 ================================================ I expect no such warning as I am not using any register_globals etc I am only using the suggested session handling API: session_start & $_SESSION array. 2. Also found: By changing the last 2 lines to: //$_SESSION["test"] = NULL; unset($_SESSION["test"]); warning disappears. By changing "$test = " to "$test2 = " warning disappears either. Shall it be the feature I would appreciate if you send me an explanation of this feature as it does not make any sense to me. Reproduce code: --------------- <? session_start(); $test = isset($_SESSION["test"]) ? $_SESSION["test"] : "test"; $_SESSION["test"] = NULL; //unset($_SESSION["test"]); ?> Expected result: ---------------- I expect not to have this warning as I am not using any register_globals etc I am only using the suggested session handling API: session_start & $_SESSION array. Actual result: -------------- Warning: Unknown(): Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=24380&edit=1