Urgent help required !

I urgently need to write a php code that will post certain values to a particular url... I am using oscommerce shopping cart ... i have an html code for it but i donot know how to write a php code for the same... please help!

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<form name="frm1" method="post" action="https://secure.paymentgateway.co.in/default.aspx">

<input type="hidden" name="amount" value="">

<input type="hidden" name="mer_username" value="">

<input type="hidden" name="mer_refno" value="">

<input type="hidden" name="orderid" value="">

<input type="submit" value="Submit" name="Pay">

</form>

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now that I am using the oscommerce shopping system which runs on php technology.... please please help me write the code.

What?

If you want that form to submit to a PHP script, change the 'action' attribute to target the new PHP script.

If you want someone to write an application to match the functionality of your ASP application, hire someone.