how can I apply express checkout paypal integration using hidden variable?

[hemal8888]

hello all,

i want know about this question "how can apply express checkout paypal integration using hidden varible? " i fond this answer but i am not satisfied with answer.

in below i given you demo code i want nedd using this..

orm action='https://api-3t.sandbox.paypal.com/nvp' method='post' name='frmPayPal1'><!-- found on top -->
					   <input type='hidden' name='USER' value='ur api username'>
                  <input type='hidden' name='PWD' value='ur api pwd'>
                  <input type='hidden' name='SIGNATURE' value='ur api signature'>
                  <input type='hidden' name='VERSION' value='72.0'>
               
                     <input type='hidden' name='METHOD' value='SetExpressCheckout'>

if any one have answer this question please give me reply