Help with paypal

by nunos

Posted: 18 years ago 9 replies

PROGRAMMING

Hi.

I have been trying to find a paypal script but still haven't found what I am looking for.

I suppose this the basics of paypal payment processing.

What I want is to be able to do is to have the amount to be paid by paypal in a parameter.

So it would be like this:

user fills a form
the amount is calculated based on the filled form
the user pays the amount calculated in paypal

That's it.

I know HTML and PHP. I just haven't done this before and can't seem to find a way to do it right...

I would really appreciate any help on this. I have already looked up a few php paypal libraries but I can't get to make them work properly.

Thanks for your help and time,
nunos

#paypal

Lisa Copen 18 years ago
If you have the form on the page, and can do your calculations in JavaScript, the following script will update the PayPal form:
Code:

function addToCart(sItem, sPrice, sQty) { with (document.frmPayPal) { // call function to calculate amount item_name.value = sItem; amount.value = sPrice; quantity.value = sQty; submit(); } }
This code allows a single form on the page, regardless of how many products you have. I use this in conjunction with the PayPal shopping cart form code. The script is called from a link on the web page.

Hope this helps.

Lisa
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ehicks727 18 years ago
Originally Posted by nunos

user fills a form

the amount is calculated based on the filled form

the user pays the amount calculated in paypal
What determines the price? In other words, what, in the form, would affect the price and how? Is it just Quantity??
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- viane 18 years ago
  
  Are you using session variable to store quantity and price ? Please give us more information to look at the problem
  
  Thanks
  
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codeswarrior 18 years ago

I have script for Paypal you can check this Paypal Demo . Hope this help you.
Furthermore if you want his script i will provide you.
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Bugala 17 years ago

Sorry from spamming this, but seems i need 2 more sent messages to be able to PM you.

Im interested in your code.
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Dan Grossman 17 years ago

form-processor.php:

PHP Code:

<?php //put your code here to compute $price based on the submitted form $price = 5; //now fill these in $email = "your paypal e-mail address"; $name = "the product name you want to display"; $thanks = "http://the url of your thank-you page"; //Now redirect to PayPal to pay header("Location: https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business=" . urlencode($email) . "&quantity=1&item_name=" . urlencode($name) . "&amount=$price&no_shipping=1&return=" . urlencode($thanks) . "&currency_code=USD&lc=US&bn=PP%2dBuyNowBF&charset=UTF%2d8");

^ That's it
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- egturnkey 17 years ago
  
  Originally Posted by Dan Grossman
  
  ^ That's it
  
  didn't worked for me ...
  
  Thanks
  
  1 reply
  
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  Dan Grossman 17 years ago
  
  Originally Posted by egturnkey
  
  didn't worked for me ...
  
  If you want help using it, then you'll have to write more than "didn't worked". I've been using similar code in custom written shopping carts for more than 5 years.
  
  Thanks
  
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Aaron Sustar 17 years ago

Yup, we are a little short on details here ...

However, changing the settings of your PayPal button with JavaScript might seem like an elegant way, but you will *always* need to double-check those values with your server-side language as well.
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