请问这个输出LOGO的base64是怎么一回事呢？

[tianqing268]

在common.php里面；

代码： 全选

die(base64_decode('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'));

求各位高手指路，这是怎么加密的？为什么解密出来是个图片??而且点右键看不到图片任何URL的信息。我很佩服这种加密方式，希望能得到高手的帮助。非常感谢望不吝赐教！

[xiaozi]

$content = file_get_contents('logo.jpg');
// 输出编码
echo base64_encode($content);

[tianqing268]

非常感谢！