if exist update data else insert new data

Try to fetch the image if it does not exist then an empty array will be returned.

Now you can use and if statement to check the returned array,
if empty insert image else update image.

Thanks for your answer. If i have 5 images: 3 updated and 2 new...with a if statement i can update 3 images OR add 2 new images. Have i lost something in your answer?