- var_dump: documentation ( source)
- hex2bin: documentation ( source)
- strtoupper: documentation ( source)
- base64_encode: documentation ( source)
- strtolower: documentation ( source)
<?php
$token = "abcdefABCDEF1234567890";
var_dump(base64_encode($token));
var_dump(base64_encode(strtolower($token)));
var_dump(base64_encode(strtoupper($token)));
var_dump(hex2bin(base64_encode($token)));
var_dump(hex2bin(base64_encode(strtolower($token))));
var_dump(hex2bin(base64_encode(strtoupper($token))));