Mongo equivalent of SQL's SELECT DISTINCT?

Question

As per the title, what would be the PHP Mongo equivalent of something like this in SQL:

SELECT DISTINCT(field) FROM table WHERE someCondition = 1
         


        

Answer 1

If you need to add a where clause, use the following syntax:

$ages = $db->command(array(
    "distinct" => "people", 
    "key" => "age",
    "query" => array("someField" => "someValue")));