尽管使用'if（isset），但仍接收Apache php错误通知

Question

My Apache log is full of notices like the following:

[Sun Aug 11 09:11:36 2013] [error] [client 127.0.0.1] PHP Notice: Undefined index: view in /var/www/components/com_content/router.php on line 59

Here's the referenced bit of code:

    if (($menuItem instanceof stdClass) && $menuItem->query['view'] == $query['view'] && isset($query['id']) && $menuItem->query['id'] == (int) $query['id'])ug

    {       
            unset($query['view']);

            if (isset($query['catid']))
            {       
                    unset($query['catid']);
            }

            if (isset($query['layout']))
            {       
                    unset($query['layout']);
            }

            unset($query['id']);

            return $segments;
    }

From what I've read, the isset is the most common solution for this, but it's not making a difference. Anyone else come across a solution?

Answer 1

Move the isset() check to right after the stdClass check.

In other words, change

($menuItem instanceof stdClass) && $menuItem->query['view'] == $query['view'] && isset($query['id']) && $menuItem->query['id'] == (int) $query['id'])

to

($menuItem instanceof stdClass) && isset($query['id']) && $menuItem->query['view'] == $query['view'] && $menuItem->query['id'] == (int) $query['id'])