用PHP将32个字符的md5转换成base64的md5

Question

我有一个例子：

Md5 base64: wPE2JkrsTJxF+KbSDApwYQ==
Md5 using md5_file: c0f136264aec4c9c45f8a6d20c0a7061

如何将第一个md5转换为第二个md5？

Answer 1

base64_decode gets you from base64 back to binary, and then bin2hex 将其转换为十六进制：

$var = "wPE2JkrsTJxF+KbSDApwYQ==";
echo bin2hex (base64_decode ($var));
// prints c0f136264aec4c9c45f8a6d20c0a7061

Convert md5 in base64 in md5 of 32 characters with PHP