如何将base64转换为image（canvas）并使用php将其保存到文件夹路径？

Question

我对如何将base64上载到文件夹路径感到困惑。这是我的代码：

var img = document.createElement('img') || document.querySelector('img');

var context;

var width = video.offsetWidth

        , height = video.offsetHeight;

canvas = canvas || document.createElement('canvas');

canvas.width = width;

canvas.height = height;

context = canvas.getContext('2d');

context.drawImage(video, 0, 0, width, height);

img.src = canvas.toDataURL('image/png');

document.body.appendChild(img);

Answer 1

在我的代码中，我使用了它，并且有效：$picture = rtrim(strtr(base64_encode($_FILES['userfile']['name']), '+/', '-_'), '=');对于视图：img src=" echo base_url(). 'admin/assets/uploads/product/'.$product['userfile'];" alt="img" class = "img-thumbnail rounded float-left image-product"