Hi frds, iam using payflowlink. my code is: <form method="POST" action="https://payflowlink.paypal.com"> <B>Payment Information</B><br> <input type="hidden" name="LOGIN" value="loginid"> <input type="hidden" name="PARTNER" value="partner name"> <input type="hidden" name="TYPE" value="A"> <input type="hidden" name="SHOWCONFIRM" value="false">--> <B>Billing Name:</B> <input type="text" name="NAME" value="Billing Name"><br> <B>Billing Address:</B> <input type="text" name="ADDRESS" value=""><br> <B>Billing City:</B> <input type="text" name="CITY" value=""><br> <B>Billing State:</B> <input type="text" name="STATE" value=""><br> <B>Billing Zip:</B> <input type="text" name="ZIP" value=""><br> <B>Billing Country:</B> <input type="text" name="COUNTRY" value=""><br> <B>Phone:</B> <input type="text" name="PHONE" value=""><br> <B>Amount:</B> <input type="text" name="AMOUNT" value="39"><br> <input type="hidden" name="METHOD" value="CC"> <B>Credit Card Type:</B> <select name="CARDTYPE" id="CARDTYPE"> <option value="DS">Discover</option> <option value="VI">Visa</option> <option value="DI">Diner's Club</option> <option value="MC">MasterCard</option> <option value="AX">American Express</option> </select> <br> <B>Credit Card Number:</B> <input type="text" name="CARDNUM" ><br> <B>Credit Card Security Code:</B> <input type="text" name="CSC" value="005"><br> <B>Expiration Date:</B> <input type="text" name="EXPDATE" value="11/2018""><br> <B>Email:</B> <input type="text" name="EMAIL" id="EMAIL" value=""><br> <input type="submit" value="Buy"> </form> ................ this is using error just check this one....... https://payments.verisign.com.au/pa...ernet.net&USER1=2&USER2=0&USER3=cart&CUSTID=2 .................. wen fill the enter paypal credit card number display error msg any one help me and how to write in curl progrem (dont need for html) Thanks