- bin2hex: documentation ( source)
- base64_decode: documentation ( source)
- urldecode: documentation ( source)
<?php
echo urldecode('U9mpj1TGh%2FtDoeu0YintiSG4hDJxFfTEA0x5zPPMLUSw88IwjdeUo0%2B60d9ufdHoNdQ0NpxqsabUWqM8OS2QbA%3D%3D');
echo "\n";
echo bin2hex(base64_decode('U9mpj1TGh'));
echo "\n";
echo base64_decode('tDoeu0YintiSG4hDJxFfTEA0x5zPPMLUSw88IwjdeUo0+60d9ufdHoNdQ0NpxqsabUWqM8OS2QbA==');