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POWhat does this PHP do? Is it an encoder/decoder?
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  1. POWhat does this PHP do? Is it an encoder/decoder?
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    copied!<p>I don't know PHP at all; this is more of a question of curiosity.</p> <p>Following the PHP function below in the text file are a few thousand characters of text, such as:</p> <pre><code>xnEFstUhSNWGSx5zTq4X/AUw/rtism+klrBETWg0xE1uwb49rnRxrgrgY5EEp3Y0uvTcvLqhUFOP 4n7LDLQpQ9UACTyuUjGBKmUScQCYLCP08u06t0K3nWTNiM7Q6bQMk/iZBE+UK1ywbVC1Lzr9OOEK </code></pre> <p>Does this php function encode the random-looking text into php? Can the encryption scheme be figured out from this?</p> <p><strong>EDIT:</strong> The client says he has full ownership and rights to the code, developed by someone else. How would it be decoded? Does it require a password?</p> <pre><code>&lt;?php //003ac if (!extension_loaded('ionCube Loader')) { $__oc = strtolower(substr(php_uname(), 0, 3)); $__ln = 'ioncube_loader_' . $__oc . '_' . substr(phpversion(), 0, 3) . (($__oc == 'win') ? '.dll' : '.so'); @dl($__ln); if (function_exists('_il_exec')) { return _il_exec(); } $__ln = '/ioncube/' . $__ln; $__oid = $__id = realpath(ini_get('extension_dir')); $__here = dirname(__FILE__); if (strlen($__id) &gt; 1 &amp;&amp; $__id[1] == ':') { $__id = str_replace('\\', '/', substr($__id, 2)); $__here = str_replace('\\', '/', substr($__here, 2)); } $__rd = str_repeat('/..', substr_count($__id, '/')) . $__here . '/'; $__i = strlen($__rd); while ($__i--) { if ($__rd[$__i] == '/') { $__lp = substr($__rd, 0, $__i) . $__ln; if (file_exists($__oid . $__lp)) { $__ln = $__lp; break; } } } @dl($__ln); } else { die('The file ' . __FILE__ . " is corrupted.\n"); } if (function_exists('_il_exec')) { return _il_exec(); } echo ('Site error: the file &lt;b&gt;' . __FILE__ . '&lt;/b&gt; requires the ionCube PHP Loader ' . basename($__ln) . ' to be installed by the site administrator.'); exit(199); ?&gt; </code></pre>
 

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