Twitter API -> updating profile bg image with php

Question

So far I have been trying to update the twitter profile bg image thr the twitter api with php... and without success

Many examples on the web, including this one:

Answer 1

Have you confirmed that the image you expect is present and being sent (i.e. echo out the base64 encoded data for verification)? Is it GIF/PNG/JPG and under the 800 kilobyte limit set by the API?