Creating a thumbnail in PHP store in different folder - php

Question

Hello I was looking at creating a thumbnail along with my main image. I would like it to be stored in a different folder than the original and be a maximum height of 400px. I have had a search around but it all seems too complex. I was looking for something fairly simple. I am new to the file uploading stuff. Below is the code I currently have.
// Configuration
$allowed_filetypes = array('.jpg', '.JPG', '.bmp', '.png', '.gif');
$max_filesize = 100000000;
$upload_path = 'artimages/';
$filename = $_FILES['userfile']['name'];
$ext = substr($filename, strpos($filename,'.'), strlen($filename)-1);
// Random Number
$randomnumber = rand(1, 1000000);
$filename = $randomnumber.$filename;
// File Size
if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
die('The file you attempted to upload is too large.');
// File Type
if(!in_array($ext,$allowed_filetypes))
die('The file you attempted to upload is not allowed.');
// Check CHMOD 777
if(!is_writable($upload_path))
die('Fail');
// Upload File
if(move_uploaded_file($_FILES['userfile']['tmp_name'],$upload_path . $filename))
echo 'Success';
else
echo 'Fail';

Answer 1

The code below will require PHP-GD
// load image and get image size
$img = imagecreatefromjpeg( "{$pathToImages}{$fname}" );
$width = imagesx( $img );
$height = imagesy( $img );
// calculate thumbnail size
$new_width = $thumbWidth;
$new_height = floor( $height * ( $thumbWidth / $width ) );
// create a new temporary image
$tmp_img = imagecreatetruecolor( $new_width, $new_height );
// copy and resize old image into new image
imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
// save thumbnail into a file
imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" );
}

Answer 2

You can do something like that:
$tmp_path = /*the temp path of your picture*/;
$imagePath = /*the path of you uploaded picture*/;
$Thumbnail = /*the path of your thumbnail folder*/;
move_uploaded_file($tmp_path, $imagePath);
copy($imagePath, $thumbnailPath);
So you will upload your image and just after that you will copy it in another location.