CSV file_get_contents sending PHP - php

Question

I'm trying to send a .CSV file with PHP. The file is written to disk before it's sent but when I try to attach the file with file_get_contents(); the structure of the .CSV isn't preseved yet when try and send the file that's created before it's sent I get a resource id (#183) so how can i attach a file which the user can open as a .CSV file? I've made sure the mime type and headers are correct
EDIT
if(!file_exists(_PS_ORDERS_DIR_.$orderDate.'/'.$file_name.'.csv'))
{
if($file = fopen (_PS_ORDERS_DIR_.$orderDate.'/'.$file_name.'.csv', 'x+'))
{
foreach ($list as $fields)
{
fputcsv($file, $fields);
}
$attachment['mime'] = 'application/vnd.ms-excel';
$attachment['content'] = file_get_contents(_PS_ORDERS_DIR_.$orderDate.'/'.$file_name.'.csv');
$attachment['name'] = $order.'order';
Mail::Send(1, 'order_conf', 'Order CSV Attachment', $success, 'dan.farr#gmail.com', CakeToppers, NULL, NULL, $attachment);
return true;
}

Answer 1

If you are using Swift Mailer, there is no need for file_get_contents(), you can just attach the file directly.
From the Swift Mailer documentation:
//Create the attachment
// * Note that you can technically leave the content-type parameter out
$attachment = Swift_Attachment::fromPath('/path/to/image.jpg', 'image/jpeg');
//Attach it to the message
$message->attach($attachment);
So for you that would be:
$attachment = Swift_Attachment::fromPath(_PS_ORDERS_DIR_.$orderDate.'/'.$file_name.'.csv', 'application/vnd.ms-excel');
//Attach it to the message
$message->attach($attachment);