Header() problems

Is it possible to have two header("Location:whatever.php"); specified? The reason why I ask is I want to have somebody file out a form then have that sent to one address, but I want the user to be sent to another address. The first form will be where somebody will enter their mobile number. This will be sent to a remote url then the user will receive an sms with a pin number. This pin will be entered into the next form. But because the first form information is sent to a remote url I don't have any control over it, but I need the information to be sent to it and then the user continue on the next form.
Thanks

Try something like this:

http://php.dzone.com/news/execute-http-post-using-php-cu

Use CURL to process the request to the remote server, then continue on with whatever else you need to do with the mobile number.

thanks, Can I still use cURL if the form method is get instead of post?