please help. i want pass variables from a php form to an online shopping payment systems
this is the url i have
https://usd.swreg.org/cgi-bin/s.cgi?s=133537&p=133537-2&q=1&v=0&d=0&Variable Pricing=<?php echo"$price";?>"
the url links the php form to the swreg.org but it doesn't transfer the price.
how can i modify the code to transfer the price obtained from the php form