如何从dataurl在服务器上创建图像文件 [英] how to create an image file on server from dataurl

问题描述

我有一个dataurl格式的图像，例如:

I have an image in a dataurl format, like:

data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgMCAgMDAwMEAwME…iiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigD/2Q== 

我需要将JavaScript中的此字符串转换为可以直接复制到空白jpg文件中的另一个字符串，以便用户可以查看.
知道如何实现吗?

I need to convert this string in JavaScript to another string which can be directly copied to a blank jpg file so that it can be viewed by the user.
Any idea how to achieve this?

推荐答案

您只需要从DataURI中删除"data:image/jpeg; base64".

You just need to remove "data:image/jpeg;base64," from DataURI.

$dataUri = "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgMCAgM...";
// remove "data:image/jpeg;base64," from image Data URI.
$data = str_replace("data:image/jpeg;base64,", "", $dataUri);

// save to file
file_put_contents("/tmp/image.jpeg", base64_decode($data));

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