Doctrine\MongoDB\Query\Builder::inc PHP Method

If the field does not exist, it will be set to this value.

See also: Expr::inc()

See also: http://docs.mongodb.org/manual/reference/operator/inc/

public inc ( float \| integer $value )
$value	float \| integer

    public function inc($value)
    {
        $this->expr->inc($value);
        return $this;
    }