Phpfox Developers: Correct way of sending mail (multiple languages)

Well we got a bug report today that at first seemed intimidating, the case was that in some mails being sent the script would not take into account the language of the receiver if it was a registered user. The first approach was to open the callback for that one case and scenario and fix it there, 3 lines of code edited no big deal, the problem is that it was a callback, meaning every module implemented, so 3 lines of code times 61 was too much to do by hand, luckily we have a built in method to change the language just for one phrase and the fix turned out to be site wide and implemented in less than 1 minute, here's the recap:

This code is wrong because it will not take the target user's language into account

Phpfox::getLib('mail')->to($aRow['user_id'])
->subject(Phpfox::getPhrase('module.var'))
->message(Phpfox::getPhrase('module.var'))

This next is correct:

Phpfox::getLib('mail')->to($aRow['user_id'])
->subject(array('module.var'))
->message(array('module.var'))

That is basically it, since you are passing the user_id in the ->to() function the mail library will pick up the language for that user, and by passing an array instead of the actual phrase the mail library will get the correct phrase, you can also include an array of parameters if you like as a second element in the array:

Phpfox::getLib('mail')->to($aRow['user_id'])
->subject(array('module.var', array('param1' => 'val1')))
->message(array('module.var', array('param2' => 'val2')))

and it will run the replacements as if you had done a getPhrase. Our fix was to Replace In Files all
 ->subject(Phpfox::getPhrase
with
->subject(array
and same for
->message.