About Question enthuware.ocajp.i.v7.2.987 :

[ETS User]

Should the third point be [2] not [3] as in ...

arr[0][1][2] => [0] = { { "a", "b" , "c"}, { "d", "e", null } }, [1] = { "d", "e", null } and [2] = null.
So it will print null.

[admin]

Yes, it should be [2]. This has now been fixed.

thank you for your feedback!