Add the method Mongodb\Query\Builder::toMql() to mimic the Illuminate\Database\Query::toSql(). No need for a toRawSql() equivalent because there is no data binding.

This will help writing comprehensive tests on query builder. PHPORM-33

The MQL format (my proposition)

MQL is a javascript-like format.

The collection name is not in the dumped format.

db.users.find().skip(5).take(10)
[
    'find' => [
        [],
        ['skip' => 5, 'limit' => 10]
    ],
]

Or in split version:

[
    'find' => [],
    'skip' => [5],
    'take' => [10],
]

When chaining, add several calls to the array. This does not accept calls to the same method. But the query builder never use method chaining.

db.users.find({"name.family": "Smith"}).count()

[
    'find' => [['name.family' => 'Smith']],
    'count' => [],
]