In PHP how do I take a base64 encoded png and output that png as an image?

Question

I tried

header('Content-Type: image/png');
echo base64_decode($data);`

But it doesn't work.

Answer 1

A png data url looks like this:

data:image/png;base64,[actual data]

You have to cut the beginning to be able to base64_decode it.
Also, if you remove the header call, you will be able to see any error message your code outputs.

Answer 2

PHP has this magical function named imagecreatefromstring() too... But there is no need to use it if you need to show image only.

Answer 3

Thank you everyone for trying to help. The problem was I was that I forgot to url encode the query parameter before I sent it to the PHP script.