How to save a PNG image server-side, from a base64 data string

Question

I\'m using Nihilogic\'s \"Canvas2Image\" JavaScript tool to convert canvas drawings to PNG images. What I need now is to turn those base64 strings that this tool generates,

Answer 1

PHP has already a fair treatment base64 -> file transform

I use to get it done using this way:

$blob=$_POST['blob']; // base64 coming from an url, for example
$blob=file_get_contents($blob);
$fh=fopen("myfile.png",'w'); // be aware, it'll overwrite!
fwrite($fh,$blob);
fclose($fh);
echo ''; // just for the check