PHP コードの難読化。確かに無価値です。
これがデクリプタです: http://decode-phpencode.eu.pn/
ソースコードは次のとおりです。
<?php
/* This program is released under the MIT license http://opensource.org/licenses/MIT */
# stripslashes may be needed on servers that uses magicquotes
$file = stripslashes($_POST['file']);
# This decodes the first eval string
$first_eval_string = base64_decode(preg_replace("/.*eval\(base64_decode\(\"([^\"]+)\".*/", "$1", $file));
# That contains an array with byte positions inside the encryted string
$array = preg_split("/,/", preg_replace("/.*array\(([\d,]+).*/", "$1", $first_eval_string));
# The area where the code begins we get it just by summing the numbers in the array
$begin = array_sum($array);
# We get the content from that area and decrypted. That's it.
echo "<?php\n";
echo gzinflate(
base64_decode(
trim(
substr($file,$begin)
)
)
);
そして、「phpencode.orgデコーダー」をグーグルで検索した最初の結果は、この他のデコーダーです:http://lombokcyber.com/detools/welcome/cdecodezeura1