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PHP base64解码 加密图片的还原方法

时间:2024-10-08 07:16:21 php语言 我要投稿
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PHP base64解码 加密图片的还原方法

  PHP是一门高效的网络编程语言,由于它具有编写灵活、运行快速等优点,迅速成为Web程序员的首选语言。以下是小编为大家搜索整理的PHP base64解码 加密图片的还原方法,希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!

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  //文件名:base64.php

  $data="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";

  $img=base64_decode($data);

  echo $img;

  ?>

  引用图片的方法:

  输出:

  【推荐阅读】

  PHP原版HTML编码器溢出该如何解决

  PHP5.1.6、4.4.4及以前版本中,在查找关于“htmlspecialchars() and htmlentities() ”相关字符编码的时候,当UTF-8编码被选择的时候可能会触发一个可能的`缓冲器溢出。

  “While we were searching for a hole in htmlspecialchars() and htmlentities() to bypass the encoding of certain chars to exploit a possible eval() injection hole in another application we discovered that the implementation contains a possible bufferoverflow that can be triggered when the UTF-8 charset is selected.”

  最新发行的PHP5版本5.2已经修正了这个错误,但是该问题仍然在PHP4.4 版本中存在。全部信息可以在the full vulnerability 查看到。

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