Loops over an array of arrays and allows for really simple / small constructs by moving the scope down to each element automatically. It is basically a combination of foreach and with internally.
loop(array $from [, $name = "default ] )
Note that this plugin supports iterator variables through the name parameter and also supports the else plugin
Example:
{loop $users}
{$id}-{$name}
{/loop}
Data:
'users' => array( 1 => 'Bob', 2 => 'John' )
Output:
1-Bob 2-John
[edit] Accessing the array key
To access the array key you have to use the {$_key} var within the loop, its name is not user-definable to keep this plugin as simple as possible.