How to send a picked image from device in php?

Hello I have a html template where I perform a action that picks a image from the device ( with camera on phone, image on pc, ipad etc ). I also have a contact form that sends a email at the end. I want to attach this picked image and send it as an attachment with the mail on submit. How can i do this?

I am using phpmailer for the mail function and its connected to a mysql database/ web server