PHP upload not working - php

Question

I've been trying to get my PHP upload script working, the HTML side seems to work but the PHP keeps returning a failed result. I am using iPage hosting. Here is my script:
<?php
if(isset($_FILES['userfile'])){
$uploaddir = '/var/www/uploads/';
$uploadfile = $uploaddir . basename($_FILES['userfile']['name']);
echo "<p>";
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
echo "File is valid, and was successfully uploaded.\n";
} else {
echo "Upload failed";
}
echo "</p>";
echo '<pre>';
echo 'Here is some more debugging info:';
print_r($_FILES);
print "</pre>";
} else {
?>
<form enctype="multipart/form-data" action="" method="POST">
<input type="hidden" name="MAX_FILE_SIZE" value="512000" />
Send this file: <input name="userfile" type="file" />
<input type="submit" value="Send File" />
</form>
<?php
}
?>

Answer 1

Comment to answer to close the question, since that's what the issue was, both.
Check to see if the folder is writeable. If it is, then try a relative path instead of what you're using now.
I.e.: $uploaddir = 'uploads/';

Answer 2

Make sure the upload directory has the correct permissions - Writable and Proper Owner
You will run into issues when the file size is over 512000, you should check the size of the file using the $_FILE array and return an error message. Just a suggestion as you have already closed this.
// Error Checking Extended
if($_FILES['userfile']['error'] == 2) {
echo "You've exceeded the maximum file upload size of 512kb.";
return false;
}