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NetTuts.com:
How to Process Credit Cards with PayPal Payments Pro Using PHP
June 08, 2012 @ 09:17:47

NetTuts.com has a new tutorial posted today about processing payments with PayPal using their "Payments Pro" API and a handy library that makes it pretty simple.

While one of its most popular features is the ability to simply sign in to your PayPal account to submit payments, merchants using PayPal can also accept credit cards directly just like a traditional merchant account solution would provide. PayPal calls this solution Payments Pro, and I'm going to show you exactly how you can process credit cards directly with PayPal's API using their Payments Pro web service API's.

They've broken it up into the different steps including:

  • Setting up the configuration
  • Creating a first API request
  • Sending the HTTP request to the PayPal API (via curl)
  • Parsing the response
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paypal paymentspro creditcard process tutorial


Eran Galperin's Blog:
Breaking Down The PayPal API
April 25, 2011 @ 09:50:54

In a recent post Eran Galperin takes a look at the PayPal API and breaks it down into smaller, easy to digest chunks to show you how to you can implement it in your application. Be warned, though - he mentions that it's the "among the worst API he's ever had to deal with" for several reasons.

PayPal is the most popular platform for receiving online payments. The relative ease of opening a PayPal account and receiving payments compared to opening a merchant account for a traditional payment gateway is the number one reason, and another is the comprehensive API they provide for their payment services. [...] There doesn't seem to be any better alternatives currently, so hopefully this guide will help ease the pain for some of you out there taking your lumps working the API into your applications.

Eran starts with a look at some of the different payment options, express, direct, recurring and mass, and what they're good for. From there, it's off to the code with his tool of choice being curl to make it simpler to make requests with headers, content and fetch the response message. He's put together a little custom function to make it easier to reuse. As an example, he shows how to make an Express Checkout request by grabbing a token and redirecting to the PayPal site for handling.

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paypal api connection tutorial payment soap request curl


9Lessons:
Payment System with Paypal
March 15, 2011 @ 08:55:53

On the 9Lessons blog today Srinivas Tamadashows you how to create a simple PayPal interface between their API and your site to make accepting payments easier.

I received a tutorial requests from my reader that asked to me how to implement payment gateway system with Paypal API. In this post I want to explain how to work with Paypal Sandbox test accounts for payment system development and sending arguments while click buy now button. It's simple and very easy to integrate in your web projects.

He includes the SQL to create a basic database for storing product and sales information (as well as a bit of user data linked to them) as well as instructions on creating the accounts you'll need on the PayPal side. The script creates a form that takes the payment information and pushes it to a script on the PayPal side for validation and charging.

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api paypal payment tutorial


Matt Williams' Blog:
Integrating PayPal with PHP and IPN
April 14, 2010 @ 12:02:09

In a recent post Matt Williams shares how to integrate your application with the PayPal IPN payment gateway service.

PayPal has a huge API reference to integrate it's services into any website. But from personal experience I found that the theory is far more simple than the practice. There are various methods to implement PayPal's services including Soap webservices with 'Express Checkout' and 'Website Payment Pro'. This tutorial will focus on 'Website Payment Pro' and the 'IPN' event listener.

He shows how to send the information as a POST request in one of two ways - as a standard form submission kind of POST and from a script opening a direct socket to the PayPal server and sending over a well-formed request.

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paypal ipn payment gateway request


NETTUTS.com:
Using PayPal's Instant Payment Notification with PHP
March 05, 2009 @ 10:23:27

On NETTUTS.com a recent tutorial has been posted about the integration of your PHP application with PayPal's Instant Payment Notification system.

Today we are going to combine Paypal with PHP to allow for the easy processing of payments on your website.

You'll need a Premier PayPal Account to get it all working as well as already have a server with a working PHP installation (there's no setup and install for that in this tutorial). There's ten different steps in the process and screenshots and code are provided the whole way:

  • Creating a PayPal Account
  • Enable IPN
  • Building a Simple HTML Page
  • Building a PayPal Button
  • Writing ipn.php
  • Creating the Database
  • Account Creation
  • Emailing the Login Credentials
  • Invalid Payment Email
  • User Login
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paypal instant notification system tutorial ins screenshot


Juozas Kaziukenas' Blog:
PayPal payment with encryption
February 23, 2009 @ 12:04:28

Juozas Kaziukenas points out a new class in his latest blog post that can be used to make secure connections over to PayPal (encrypted) using their Encrypted Website Payment method.

In my situation, PayPal is only used to pay for orders - cart and order setup is done in our shop, so I do not want to have additional problems with users changing orders numbers, amount to be paid, etc. [...] Only PayPal knows how to decrypt it, because it uses public key encryption technology (you need to upload your certificate in PayPal account).

Some sample usage code is included as is a link to the class itself. His example takes a payment transaction including the item name, amount and currency type and sends it off to the PayPal servers in a connection protected by certificates.

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paypal encryption payment secure certificate gateway tutorial class


Chris Hartjes' Blog:
CakePHP Plugins Server
January 30, 2009 @ 07:57:45

Chris Hartjes in looking for a plugin to integrate a CakePHP application with PayPal, came across an interesting tip from a fellow CakePHP developer - a plugin server.

John Anderson (aka psychic, the lead on the CakePHP Cookbook project) mentioned that he had a plugin I could use. He also provided a link to an experimental CakePHP plugin server he's setup and asked people to play around with. That PayPal plugin was one of the ones being offered.

This PayPal plugin is one of many housed on the server. There's also a client script that can be used on the command line to fetch and upload plugins to and from the site.

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cakephp plugin server client paypal script johnanderson


NETTUTS.com:
10 Biggest Milestones in Web Development
November 25, 2008 @ 11:15:25

NETTUTS.com has posted their top ten list of some of the largest milestones in web development - one of which is the release of PHP.

Some believe the progression of the great World Wide Web to be a travesty, others a godsend. Regardless, the Internet has evolved over the past few decades, and is in many ways better for the web developer. New technologies have come about that have made web development much easier to get started in, and ultimately more fun.

Here's a few from their list:

  • Linus Torvalds Creates the Linux Kernel
  • The Open Source Movement Officially Starts
  • PayPal is Founded
  • Firefox is Released
  • and, of course, PHP is Released by Rasmus Lerdorf
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milestone development web linux opensource paypal firefox


Stefan Mischook's Blog:
PHP Shopping Cart Video Tutorial Course - available for download.
September 22, 2008 @ 16:21:22

Stefan Mischook has made his entire video series detailing the creation of a simple shopping cart in PHP available for download:

After teasing you guys for a week or so, I've released the entire video tutorial course on building a PHP based shopping cart. There is a small charge ($19.99) to download the entire course, but it is more than worth it since you get 140 minutes of top notch nerd training...and we include the source code too.

The course walks you through the creation of the cart - what technology you'll need, building the simple catalog page, making the "add to cart" page, as well as the cart itself (including calculating the costs and shipping costs). It also includes an integration method for hooking into PayPal's IPN setup to change the customer for the goods.

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video tutorial shopping cart paypal download buy


Stefan Mischook's Blog:
PHP Shopping Cart Tutorial
September 10, 2008 @ 08:49:35

New on the KillerPHP blog today is a video tutorial by Stefan Mischook that introduces some of the key concepts and code required to make a simple cart.

I just released a new PHP shopping cart video tutorial for beginners. In this series of videos, you learn how to build a PHP based shopping cart that works with Paypal.

The result is an object-oriented cart script that can interface with PayPal via XML messages. You can find other great video tutorials in the PHP videos section of the site.

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video tutorial shopping cart paypal oop xml



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