How to create GD Image from base64 encoded jpeg?

php image gd base64 jpeg
The Surrican picture The Surrican · Dec 31, 2010 · Viewed 32.4k times · Source

I have an upload Api that as a response object delivers (along with other stuff inside a Json object) a base64 encoded jpeg image.

I create the encoded image as so:

$im; // gd image resource
ob_start();
imagejpeg($im);
$data = base64_encode(ob_get_clean());

The data then is put inside a form field using javascript and submitted.

How can I create a GD resource from that again so that I actually can save that image as a file?

Everything in PHP.

Answer

user432219 picture user432219 · Dec 31, 2010

You can use imagecreatefromstring() function:

$data = base64_decode($_POST['image_as_base64']);

$formImage = imagecreatefromstring($data);

"String" does not mean a "real" string. In that case it means bytes/blob data.

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