- var_dump: documentation ( source)
- hex2bin: documentation ( source)
- bin2hex: documentation ( source)
- urldecode: documentation ( source)
- md5: documentation ( source)
<?php
$a = urldecode('M%C3%89h%C3%BF%0E%C3%A3%5C%20%C2%95r%C3%94w%7Br%15%C2%87%C3%93o%C2%A7%C2%B2%1B%C3%9CV%C2%B7J%3D%C3%80x%3E%7B%C2%95%18%C2%AF%C2%BF%C2%A2%00%C2%A8%28K%C3%B3n%C2%8EKU%C2%B3%5FBu%C2%93%C3%98Igm%C2%A0%C3%91U%5D%C2%83%60%C3%BB%5F%07%C3%BE%C2%A2');
$b = urldecode('M%C3%89h%C3%BF%0E%C3%A3%5C%20%C2%95r%C3%94w%7Br%15%C2%87%C3%93o%C2%A7%C2%B2%1B%C3%9CV%C2%B7J%3D%C3%80x%3E%7B%C2%95%18%C2%AF%C2%BF%C2%A2%02%C2%A8%28K%C3%B3n%C2%8EKU%C2%B3%5FBu%C2%93%C3%98Igm%C2%A0%C3%91%C3%95%5D%C2%83%60%C3%BB%5F%07%C3%BE%C2%A2');
$hex1 = '4dc968ff0ee35c209572d4777b721587d36fa7b21bdc56b74a3dc0783e7b9518afbfa200a8284bf36e8e4b55b35f427593d849676da0d1555d8360fb5f07fea2';
$hex2 = '4dc968ff0ee35c209572d4777b721587d36fa7b21bdc56b74a3dc0783e7b9518afbfa202a8284bf36e8e4b55b35f427593d849676da0d1d55d8360fb5f07fea2';
$bin1 = hex2bin($hex1);
$bin2 = hex2bin($hex2);
echo bin2hex($a);
echo "\n";
echo bin2hex($bin1);
echo "\n";
var_dump(md5($a) == md5($b));
var_dump(md5($bin1) == md5($bin2));