refer to property-map array by numbers

[Anon]

OK, I have an array like this:

// Array as (property-)map
$map = array( 'version' => 4
, 'OS' => 'Linux'
, 'lang' => 'english'
, 'short_tags' => true
);

I can refer to a member of it like $map['version'], but how can I refer to the members of the array by numbers? (for example, when i want to print out the names using a control structure). The $map[0] or $map[$i] do not work.

Any idea?

Please, reply to [e-mail]