Noob PHP/MongoDB Question

Question

I am trying to create a function that checks to see if a user name already exists. I am still trying to get my head wrapped around MongoDB and was wonder what is the best way to approach this? I was going to do some the following (in Code Igniter):

$filter = array ('userName' => $value); $exists = $md->find($filter); if ($exist) { return TRUE } else { return FALSE }

Is there a better way?

Answer 1

Looks about right, here's what I have for mine.

if ($collection->findOne(array("username" => $username)) );

return true;