Description:
------------
1. Apache/2.4.18 (Ubuntu)
2. PHP 7.0.4-7ubuntu2
3. 10.0.24-MariaDB-7 Ubuntu 16.04


Type: warning 	
File: /var/www/dragon/library/Zend/Session.php 	
Line: 315 	
Message: session_regenerate_id(): Session object destruction failed.  ID: user (path: /var/lib/php/sessions)
---
From manual page: http://www.php.net/function.session-regenerate-id
---


Test script:
---------------
public static function regenerateId()
    {
        if (!self::$_unitTestEnabled && headers_sent($filename, $linenum)) {
            /** @see Zend_Session_Exception */
            require_once 'Zend/Session/Exception.php';
            throw new Zend_Session_Exception("You must call " . __CLASS__ . '::' . __FUNCTION__ .
                "() before any output has been sent to the browser; output started in {$filename}/{$linenum}");
        }

        if ( !self::$_sessionStarted ) {
            self::$_regenerateIdState = -1;
        } else {
            if (!self::$_unitTestEnabled) {
                session_regenerate_id(true);
            }
            self::$_regenerateIdState = 1;
        }
    }