I'm trying to bould a PHp Parser, with the folllowing code:

Code:
$xml = simplexml_load_file('h t t p://api.tradedoubler.com/1.0/vouchers?token=6D71B80D1A48154E2E96BC797C5DBB78FE0B0E3A');
I get "parser error : Start tag expected, '<' not found in"

Any ideas?

Thank you very much