Please take a photo for me to confirm. How to say it in English?

Both statements upstairs are correct, but not true enough.

This is better: please provide a photo as confirmation.

There are two reasons: first, if there is no ambiguity, the formal style will use nouns instead of verbs, so it will use confirmation instead of confirmation for me like the first floor.

Second, in a formal style, photos should be in the form of photos. Photos are just sketches, which are not standardized enough, while pictures are simple spoken language.