Y-m-d to output 2021-12-6 instead of 2021-12-06? [closed]

So I can easily get today’s date with:

echo (date("Y-m-d"));

The above outputs: 2021-12-06

How do I output 2021-12-6?

Of course all else should have ‘0’.. ex. 2021-12-10.. 2021-12-20.

I don’t need ‘0’ until 10.

Is there an easy way to do that with PHP?

I don’t need ‘0’ since later I will be converting this format to Dec 6