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

One-linear solution.

$base64string = 'data:image/png;base64,R0lGODlhEAAOALMAAOazToeHh0tLS/7LZv/0jvb29t/f3//Ub//ge8WSLf/rhf/3kdbW1mxsbP//mf///yH5BAAAAAAALAAAAAAQAA4AAARe8L1Ekyky67QZ1hLnjM5UUde0ECwLJoExKcppV0aCcGCmTIHEIUEqjgaORCMxIC6e0CcguWw6aFjsVMkkIr7g77ZKPJjPZqIyd7sJAgVGoEGv2xsBxqNgYPj/gAwXEQA7';
file_put_contents('img.png', base64_decode(explode(',',$base64string)[1]));