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run code in 200+ php & hhvm versions
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<?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));
based on 4fqtt
Output for 5.6.38 - 7.3.0
4dc38968c3bf0ec3a35c20c29572c394777b7215c287c3936fc2a7c2b21bc39c56c2b74a3dc380783e7bc29518c2afc2bfc2a200c2a8284bc3b36ec28e4b55c2b35f4275c293c39849676dc2a0c391555dc28360c3bb5f07c3bec2a2 4dc968ff0ee35c209572d4777b721587d36fa7b21bdc56b74a3dc0783e7b9518afbfa200a8284bf36e8e4b55b35f427593d849676da0d1555d8360fb5f07fea2 bool(false) bool(true)