数组中的数组的PHPStorm代码完成失败

Question

I have this basic code:

    $test = array(
    'nested' => array('test' => 'nada');
);

    function doit()
    {
        global $test;
        $test['nested'][''];
    }

PHPStorm correctly suggests me 'nested' when I press Ctrl+Space
However, I found no way to make it suggest 'test' as member of the 'nested' array.
PHPStorm does not seem to be aware that nested is an array and also has members.

Is that a bug, did I do something wrong ?

According to comment I tried another solution to get completion support:
With no luck either

    class test
    {
      public static $nested = array('test' => 'nada');
}

    function doit()
    {
        $completeme = test::$nested;
        $completeme['']; // no completion working

        /** @var test::nested $completeme */
        $completeme = test::$nested;
        $completeme['']; // no completion working
    }

Same issue for me at the IDE, this time it is an array inside a class.
test::nested[''] << this works, I get completion. But as soon as I make a copy of it I found no way to get completion again or to specify the type using phpdoc.

Answer 1

This feature is not implemented ( original array keys support ticket ).

AFAIK even remembering keys for first level array adds some noticeable overhead (memory + CPU -- depends on actual project and how heavily arrays/variables are used). Considering this + the fact that in majority of cases first level is enough, the implementation for other levels was simply put on hold.

https://youtrack.jetbrains.com/issue/WI-6845 -- star/vote/comment to get notified on progress.