Bug #73616 [NEW]: session file read warning when using custom DB session handler

From: jfoster at cervistech dot com Operating system: PHP version: 7.1.0RC6 Package: Session related Bug Type: Bug Bug description:session file read warning when using custom DB session handler Description: ------------ When using session_set_save_handler to implement a custom database based session handler, PHP is throwing the following warning on session_start(): PHP Warning: session_start(): Failed to read session data: user (path: C:\PHP\session\) The session handler is functioning correctly and reading/writing correctly to the DB, but is throwing the warning when no files are being used for sessions. This same code has functioned without throwing the warning for every version of PHP since PHP 5.4. The warning only started occurring in 7.1 Test script: --------------- $sess = new SessionManager(); session_start(); class SessionManager { var $life_time; #function SessionManager() function __construct() { // Read the maxlifetime setting from PHP $this->life_time = get_cfg_var("session.gc_maxlifetime"); // Register this object as the session handler session_set_save_handler( array($this, "_open"), array($this, "_close"), array($this, "_read"), array($this, "_write"), array($this, "_destroy"), array($this, "_gc") ); } function _open() { return true; } function _close() { return true; } function _read($id) { //code to read session data from db based on $id } function _write($id, $data) { //code to write/update session data to db based on $id return TRUE; } function _destroy($id) { //code to delete session data from db based on $id return TRUE; } function _gc() { //code to delete session data from db based on timestamp return true; } } Expected result: ---------------- Session handler to process session without throwing read file warning Actual result: -------------- Session handler processes session data from db successfully, but throws file read error. -- Edit bug report at https://bugs.php.net/bug.php?id=73616&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=73616&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=73616&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=73616&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=73616&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=73616&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=73616&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=73616&r=needscript Try newer version: https://bugs.php.net/fix.php?id=73616&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=73616&r=support Expected behavior: https://bugs.php.net/fix.php?id=73616&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=73616&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=73616&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=73616&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=73616&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=73616&r=dst IIS Stability: https://bugs.php.net/fix.php?id=73616&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=73616&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=73616&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=73616&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=73616&r=mysqlcfg