It is my array:
[main] => Array (
[data] => Array
( [777] => Array (... ),
[888] => Array (....),
[999] => Array (....) ));
I usually use such syntax:
array['main']['data'][0]...
however here I don't know what exactly values are (777, 888, 999).
How could I receive this 777, 888, 999
and also theirs included data?