使用Preapproval密钥进行paypal交易而无需用户身份验证

Question

i have successfully generated Preapproval key by making necessary api call. I need to know how to execute the payment with this Preapproval key so that user authentication is not required. i need the php code for making this payrequest api call

Answer 1

According to Step 2 on this page

// $approvalKey should be your previously retrieved Approval Key
// Change  sandbox to the production URL for LIVE mode
$ppRedirectUrl  = 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_ap-preapproval&preapprovalkey=' . $approvalKey;

header('Location:' . $ppRedirectUrl );
exit();