The problem was i the php. When you receive Stringbody there is only one parametre(as opposed to filebody). So I removed the second parametre in $uploadtitle = $_FILES["title"]["title"]; and it worked
<?php
$uploads_dir = 'uploads/';
$uploadname = $_FILES["image"]["name"];
$uploadtitle = $_FILES["title"];
move_uploaded_file($_FILES['image']['tmp_name'], $uploads_dir.$uploadname);
file_put_contents($uploads_dir.'juhl.txt', print_r($uploadtitle, true));
?>
I hope this helps if you have the same problem.