是否可以不必在类型文件的输入字段中浏览计算机中的文件，而是从另一个网站获取它？

问题描述：

There is website A that wants me to upload a profile picture. It uses a usual form with <input type="file">.

Then there is website B, that has a picture I would like to have in my profile on website A.

But I would like to upload the picture from website B on A, without having to download it on my PC. Instead I would like to change the form on website A with Tampermonkey (as example) so it takes the picture directly from website B.

答

Try this code

$image = imagecreatefromstring(file_get_contents($imageURL));

if (is_resource($image) === true) {
    // image is valid, your code
} else {
    // not a valid image, show error
}

See documentation here: http://php.net/manual/en/function.imagecreatefromstring.php

是否可以不必在类型文件的输入字段中浏览计算机中的文件，而是从另一个网站获取它？

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