Using compact() with the elements of an array?

[Kadence]

Is it possible to apply compact() to the elements of an array? For instance, instead of

$name = 'John';
$city = 'Denver';
$state = 'Colorado';
print_r(compact('name', 'city', 'state'));

Something like

$arr['name'] = 'John';
$arr['city'] = 'Denver';
$arr['state'] = 'Colorado';
print_r(compact(...on each key of $arr...));

I was thinking of iterating over $arr with a foreach() loop and compact()ing each element individually, but I don't know how to pass the element keys as varnames that make sense to compact().

[Salathe]

Your example makes no sense (to me) as the result of compacting based on your description would be... the original array!

[Kadence]

Yes this particular case would be rather pointless Just something I was curious about.

I suppose what I'm really asking is if there's a way to pass array elements as varnames.

[kronso]

I'm not sure if I understand, but implode and explode seem to fit that. Or maybe:

$new_array = array($$name => $name, ....

[oddz]

$arr['name'] = 'John';
$arr['city'] = 'Denver';
$arr['state'] = 'Colorado';

extract($arr);
call_user_func_array('compact',array_keys($arr)); 

?