- hex2bin: documentation ( source)
- bin2hex: documentation ( source)
- base64_decode: documentation ( source)
- base64_encode: documentation ( source)
- strrev: documentation ( source)
<?php
echo bin2hex(strrev(base64_encode(123456789))); echo " ";
$str = "3d3d516343746d4d6d6c31566956336";
echo $str; echo " ";
$b64 = base64_decode($str);
#echo $b64; echo " ";
$strrev = strrev($str);
#echo $strrev; echo " ";
$hex2bin = hex2bin($str);
#echo $hex2bin; echo " ";
#$a = hex2bin(strrev(base64_decode($str)));
#echo $a; echo " ";