src/Core/CoreKernel.php
protected function sessionEnvironment()
    {
        // Check isDev in querystring
        if (isset($_GET['isDev'])) {
            if (isset($_SESSION)) {
                unset($_SESSION['isTest']); // In case we are changing from test mode
                $_SESSION['isDev'] = $_GET['isDev'];
            }
            return self::DEV;
        }

        // Check isTest in querystring
        if (isset($_GET['isTest'])) {
            if (isset($_SESSION)) {
                unset($_SESSION['isDev']); // In case we are changing from dev mode
                $_SESSION['isTest'] = $_GET['isTest'];
            }
            return self::TEST;
        }

        // Check session
        if (!empty($_SESSION['isDev'])) {
            return self::DEV;
        }
        if (!empty($_SESSION['isTest'])) {
            return self::TEST;
        }

        // no session environment
        return null;
    }
protected function sessionEnvironment()
    {
        // Check isDev in querystring
        if (isset($_GET['isDev'])) {
            if (isset($_SESSION)) {
                unset($_SESSION['isTest']); // In case we are changing from test mode
                $_SESSION['isDev'] = $_GET['isDev'];
            }
            return self::DEV;
        }

        // Check isTest in querystring
        if (isset($_GET['isTest'])) {
            if (isset($_SESSION)) {
                unset($_SESSION['isDev']); // In case we are changing from dev mode
                $_SESSION['isTest'] = $_GET['isTest'];
            }
            return self::TEST;
        }

        // Check session
        if (!empty($_SESSION['isDev'])) {
            return self::DEV;
        }
        if (!empty($_SESSION['isTest'])) {
            return self::TEST;
        }

        // no session environment
        return null;
    }
protected function sessionEnvironment ( ) { // Check isDev in querystring if ( isset ( $ _GET [ 'isDev' ] ) ) { if ( isset ( $ _SESSION ) ) { unset ( $ _SESSION [ 'isTest' ] ) ; // In case we are changing from test mode $ _SESSION [ 'isDev' ] = $ _GET [ 'isDev' ] ; } return self :: DEV ; } // Check isTest in querystring if ( isset ( $ _GET [ 'isTest' ] ) ) { if ( isset ( $ _SESSION ) ) { unset ( $ _SESSION [ 'isDev' ] ) ; // In case we are changing from dev mode $ _SESSION [ 'isTest' ] = $ _GET [ 'isTest' ] ; } return self :: TEST ; } // Check session if ( ! empty ( $ _SESSION [ 'isDev' ] ) ) { return self :: DEV ; } if ( ! empty ( $ _SESSION [ 'isTest' ] ) ) { return self :: TEST ; } // no session environment return null ; }
Check or update any temporary environment specified in the session.

@return null|string
Check or update any temporary environment specified in the session .