PHP ShareX handler

sharex_handler.php

<?php
//Defining Paths and Variables
$path = "/FreeAppSWServerFiles/screenshot/"; //The path to webroot of this server
$filename = basename($_FILES["file"]["name"]);
$protocol = "http://"; //The protocol used to download file. http or https
$domainname = "scr.freeappsw.ml"; //Domain name
$webroot = "/"; //The path on the website
$FileType = pathinfo($_FILES['file']['name'],PATHINFO_EXTENSION);
$shortname = $filename;
$localfilename = $path."/".$filename;
$webfilename = $protocol.$domainname.$webroot.$filename;
//Handling upload
if ($_FILES["file"]["size"] > 367001600) { //Checking filesize limit 
    echo "Sorry, your file is too large.";
    die();
}
if (move_uploaded_file($_FILES["file"]["tmp_name"], $localfilename)) { //Upload successful
    echo $webfilename; //Prints the file name
    } else { //Error while uploading
        header("HTTP/1.1 401 Bad Request"); //Sends  error code so ShareX knows it's an error
    }