In this tutorial I will show you how to create a Reddit login button for your website using PHP. What is OAuth? OAuth is a protocol used to allow secure authorization to websites and applications to access user information. There are two versions of OAuth, 1.0 and 2.0. In this post we will use OAuth 2.0 to build a Reddit login system.

ImageMagick is great image processing for PHP, with ImageMagick you can resize your image, crop and do many other things in a very simple manner, it supports numerous image formats. Today we are going to create a very simple Ajax based image resize script using ImageMagick (PHP) and jQuery.

PHP exec() function is usually disabled in most shared web hosting servers because of security reasons, but if your host allows this or you are on VPS or dedicated server, you should be able to use exec commands to backup your website or mysql database. Before you start, using code below check whether exec is enabled, if it fails you should ask your host to make sure it is even allowed!

To simplify things I created a simple Payment System with PayPal REST API in my previous post. But today I want to extend that tutorial making it bit complex and allowing customers to either pay with PayPal payment method or credit cards directly. Yes PayPal allows people to pay for your products directly using credit cards, which requires absolutely no user sign-in or sign-ups with PayPal.