javascript - dataURL传到服务器之后如何保存成图片？
用js将图片剪切之后返回的时dataURL的，怎么能保存成图片文件？
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用js将图片剪切之后返回的时dataURL的，怎么能保存成图片文件？
其实没必要 toDataURL，可以直接 toBlob 上传，还可以节省点流量。Chrome 暂时还不原生支持 toBlob，不过很容易能找到 polyfill。Firefox 是已经原生支持 toBlob 了的。
当然如果以及 data URL 传到了服务器上的话，取逗号后面的内容 base64_decode 一下就可以了。
一般传输的都是base64，到了php后，正如楼上所说，base64 decode一下。
然后简单粗暴的说，file_put_contents一下就ok了。
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