Is there a way to save images in the database without saving the image itself on the server, in a PHP system?

I think I already saw this when I passed by Cordova, in the last year of college, converts the image to base64, I think ... But it turns out that I don't want to save the image files on the server ... I also want that when I click on upload image button, open the phone or notebook camera, not the image upload field.