Returns an associative array of all of the keys of the given array data.
The key values will be indexed in consecutive integers counting up from 1
in the order that the indexes were added to the array with the resolution
operator "->". Retrieving the keys in this manner makes it possible to
loop through the entries of the array until such time as a foreach loop is
designed :)
Example:
@keys = %arrayGetKeys( @myValues )
@index = 0
while( @keys->(@index += 1) !== null )
{
echoto room all
\ Key: %( @keys->@index )
\ Val: %( @myValues->(@keys->@index) )
}
endwhile | 
