将Base64转换为原始图像路径

Question

I'm using the following code to encode my image path. I want to know if it is safe or someone can decode the original file path from encoded string?

$imagedata = file_get_contents("ab/test.png");
$base64 = base64_encode($imagedata);
echo '<img src="data:image/jpeg;base64,'.$base64.'" />';

also do i have to use data:image/jpeg or png or gif or any extension would work?

Answer 1

They can decode the data, but can't know what the original filename was. The encoded data contains just the image data, not its meta -data (as in filename, mime-type -not directly-, inode, etc).

As per your second question: you must use the proper MIME type that matches the data, otherwise the browser/client won't understand its contents.

Answer 2

您正在将文件内容加载到Base64编码的字符串中，所以不，它们无法获取路径，因为您仅提供了内容。

Answer 3

If by "safe" you mean reversible then no, it is not safe.

Base64 encodes data which can be decoded easily with base64_decode. Someone would be able to decode your base64 data into the original image.