Twitter share image by any user

oauth
php

#1

Hello ,
I am using oauth twitter api and created app for my website.I have static consumer key and secret key for my website.If I am trying to share an image .it is sucessfully sharing an image through my twitter account.But if i am trying to share an image from my websites with another twitter account then it does not work.
How can I use the share image functionality for any twitter user

Thanks in advance