I've been searching for a solution for this for a few days now and haven't found anything (obviously) that works.

I'm trying to upload basic text files to my server from Unity so that players can share their levels. I'm using a php script to handle the file upload and I've tested the script using Postman and it works just fine. But it does not work within Unity via WWW & WWWForm, any (free) alternatives are welcome.

The error I'm getting:

Forbidden

You don't have permission to access /scripts/upload.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

PHP Script

     // Configuration
     $dbhost             = 'localhost';
     $dbname    = 'dbname';
     $user         = "dbuser";
     $pass         = "dbpass";
 
     // Profanity check
     function is_profanity($q,$json=0) 
     {
         $q=urlencode(preg_replace('/[\W+]/',' ',$q));
         $p=file_get_contents('http://www.wdyl.com/profanity?q='.$q);
         if ($json) { return $p; }
         $p=json_decode($p);
         return ($p->response=='true')?1:0;
     }
  
     if ($_POST) 
     {
         if (isset($_POST['author'])) 
         {
             if ($_FILES['file']['error'] === UPLOAD_ERR_OK)
             {
                 if ($_FILES['file']['name'] !== "")
                 {
                     $name         = $_FILES['file']['name'];
                     $author        = $_POST['author'];
                     
                     if (is_profanity($name) == 1)
                     {
                         echo "bad name";
                     }
                     else
                     {
                         try
                         {
                             $db = new PDO("mysql:host=$dbhost;dbname=$dbname",$user,$pass);
                             
                             $uploadfile = '/home/site/public_html/levels/' . $name;
                             move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile);
                             
                             $insert = $db->prepare("INSERT INTO UserLevels (name, author, location) VALUES (:name, :author, :path)");
                             $insert->bindParam(':name', $name, PDO::PARAM_STR, 255);
                             $insert->bindParam(':author', $author, PDO::PARAM_STR, 255);
                             $insert->bindParam(':path', $uploadfile, PDO::PARAM_STR, 255);
                             $insert->execute();
                                 
                             echo "success";
                         } 
                         catch(PDOException $e) 
                         {
                             echo 'genral error' .$e->getMessage();
                         }
                     }
                 }
                 else
                 {
                     echo "no name";
                 }
             }
             else
             {
                 echo "upload error";
             }
         }
         else
         {
             echo "argument error";
         }
     }
     else
     {
         echo "no result";
     }
 ?>

CS Code public TextAsset testLvl; public string name = "person";

         void UploadMaze()
     {
         byte[] data = testLvl.bytes;
         string fileName = testLvl.name;
 
         WWWForm form = new WWWForm();
                 form.AddField("author", name);
         form.AddField("file", "file");
         form.AddBinaryData("file", data, fileName, "text/xml");
 
         StartCoroutine(Request(new WWW(baseUrl + "upload.php", form)));
     }
 
         IEnumerator Request(WWW www)
     {
         yield return www;
 
         if (www.error == null)
         {
             Debug.Log("Success: " + www.text);
         }
         else
         {
             Debug.Log("Error: " + www.error);
             Debug.Log(www.text);
         }
     }

The Chmod on the script is 644 (default) The folder is 755 (default)