本文实例讲述了php基于base64解码图片与加密图片还原的实现方法。分享给大家供大家参考。具体实现方法如下：

本例中$data是一段经过base64编码的图片。具体代码如下：

复制代码 代码如下:<"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";

$img=base64_decode($data);
echo $img;
"codetitle">复制代码 代码如下:<img src="/UploadFiles/2021-04-02/base64.php">

运行效果如下图所示:

PS：关于加密技术，本站还提供了如下加密工具供大家参考使用：

图片转换为Base64编码在线工具：http://tools.jb51.net/transcoding/img2base64

MD5在线加密工具：http://tools.jb51.net/password/CreateMD5Password

Escape加密/解密工具：http://tools.jb51.net/password/escapepwd

在线SHA1加密工具：http://tools.jb51.net/password/sha1encode

短链(短网址)在线生成工具：http://tools.jb51.net/password/dwzcreate

短链(短网址)在线还原工具：http://tools.jb51.net/password/unshorturl

高强度密码生成器：http://tools.jb51.net/password/CreateStrongPassword

希望本文所述对大家的PHP程序设计有所帮助。