PHP redirect/load another page

Question

I know how to redirect/load with this code'

header('Location: http://www.someURL.com');

But what about using with strings?

$edit_invoice = $invoice->invoice->links->edit;
header( 'Location: '.$edit_invoice.' ) ;

I'm using Freshbooks API library in case you're wondering..

Answer 1

You have an extra apostrophe. header( 'Location: '.$edit_invoice ) ;

Answer 2

The way you have the string version set up right now won't work, because you're starting a new string at the end of calling the header() function.

header('Location: ' . $edit_invoice);

Should work, as long as $edit_invoice is a valid link.