PHP: Move uploaded file to a dynamically created path - php

Question

In this PHP code I'm going to upload a file (sent from AS3) to a directory that already created for each user with same name his username. The problem is that I don't know how to move the file into a folder associated to a user. If a user doesn't have his own folder, some code should be able to get the user's name from $_SESSION['myusername'] and then dynamically create it and then move the file:
<?php
session_start();
$username =$_SESSION['myusername'];
$uploads_dir = $_SERVER['DOCUMENT_ROOT'].'/upload/'.'/$username/';
if ( ! is_dir($uploads_dir)) {
mkdir($uploads_dir);
}
if( $_FILES['Filedata']['error'] == 0 ){
if( move_uploaded_file( $_FILES['Filedata']['tmp_name'],
$uploads_dir.$_FILES['Filedata']['name'] ) ){
exit();
}
}
echo 'error';
exit();
?>
But this code move file into "upload" directory and if the uploaded file name be xxx then file name change to xxx$username. How can do this please?

Answer 1

You have the right idea, you just need to also add the file name to the end of your path, something like:
$uploads_dir = "upload/".$username."/".$_FILES['Filedata']['name']
Then use move_uploaded_file() like so:
move_uploaded_file( $_FILES['Filedata']['tmp_name'],
$uploads_dir )
Also, its always a good idea to go ahead and make sure the directory exists before hand with file_exists().
I've also found that move_uploaded_file() likes full paths for the destinations, you can use $_SERVER[DOCUMENT_ROOT] to get this