将GIF代码转换为GIF图像或输出到文件？ [关闭]
I'm not exactly sure how to word this so apologies if the title is misleading. I'm using UPS's web service to create a shipping label, this is returned as a GIF, but not as an image, instead as a long code:
R0lGODdheAUgA+cAAAAAAAEBAQICAgMDAwQEBAUFBQYGBgcHBwgICAkJCQoKCgsLCwwMDA0NDQ4ODg8PDxAQEBERERISEhMTExQUFBUVFRYWFhcXFxgYGBkZGRoaGhsbGxwcHB0dHR4eHh8fHyAgICEhISIiIiMjIyQkJCUlJSYmJicnJygoKCkpKSoqKisrKywsLC0tLS4uLi8vLzAwMDExMTIyMjMzMzQ0NDU1NTY2Njc3Nzg4ODk5OTo6Ojs7Ozw8PD09....... (etc)
My question is how do I use this to get an actual GIF image? preferably to output to file, and using either JavaScript or PHP.
Thanks in advance!
如果标题具有误导性，我不确定如何说出这样的道歉。 我正在使用UPS的 web服务来创建货运标签，此返回为一个GIF，但不是作为一个图像，而不是作为一个长码： p>
R0lGODdheAUgA + cAAAAAAAEBAQICAgMDAwQEBAUFBQYGBgcHBwgICAkJCQoKCgsLCwwMDA0NDQ4ODg8PDxAQEBERERISEhMTExQUFBUVFRYWFhcXFxgYGBkZGRoaGhsbGxwcHB0dHR4eHh8fHyAgICEhISIiIiMjIyQkJCUlJSYmJicnJygoKCkpKSoqKisrKywsLC0tLS4uLi8vLzAwMDExMTIyMjMzMzQ0NDU1NTY2Njc3Nzg4ODk5OTo6Ojs7Ozw8PD09 ...... 。（等） code> pre>我的问题是如何使用它来获取实际的GIF图像？ 最好输出到文件，并使用JavaScript或PHP。 p>
提前致谢！ p> div>
The string looks like base64-encoded data. Assuming it is, in fact, an image then you can decode it like this:
$encodedGif = 'R0lGODdheAUgA+cAAAAAAAEBAQICAgMDAwQEBAUFBQYGBgcHBw...';
$decodedGif = base64_decode($encodedGif, true);
if ($decodedGif === false) {
die('Data has been corrupted. Unable to decode.');
}
Once you have the decoded data you can e.g. save it to a file:
$file = 'image.gif';
if ( ! file_put_contents($file, $decodedGif)) {
die('Saving image did not work!');
}
Or you can output it to a browser as a GIF image:
header('Content-Type: image/gif');
die($decodedGif);
The code that outputs this content (this is binary content of GIF image) has to announce in header to server that this content represents a GIF image (otherwise the server does not know how to represent this content). So your PHP code in header statement should define something like:
header('Content-Type: image/gif');