We've previously shown you how to get a working local installation of Apache on your Windows PC. In this article, we'll show how to install PHP 5 as an Apache 2.2 module.

Why PHP?

PHP remains the most widespread and popular server-side programming language on the web. It is installed by most web hosts, has a simple learning curve, close ties with the MySQL database, and an excellent collection of libraries to cut your development time. PHP may not be perfect, but it should certainly be considered for your next web application. Both Yahoo and Facebook use it with great success.

Why Install PHP Locally?

Installing PHP on your development PC allows you to safely create and test a web application without affecting the data or systems on your live website. This article describes PHP installation as a module within the Windows version of Apache 2.2. Mac and Linux users will probably have it installed already.

All-in-One packages

There are some excellent all-in-one Windows distributions that contain Apache, PHP, MySQL and other applications in a single installation file, e.g. XAMPP (including a Mac version), WampServer and Web.Developer. There is nothing wrong with using these packages, although manually installing Apache and PHP will help you learn more about the system and its configuration options.

The PHP Installer

Although an installer is available from php.net, I would recommend the manual installation if you already have a web server configured and running.

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Introduction

MongoDB 4.0 adds support for multi-document ACID transactions.

But wait... Does that mean MongoDB did not support transactions until now? No, actually MongoDB has always supported transactions in the form of single document transactions. MongoDB 4.0 extends these transactional guarantees across multiple documents, multiple statements, multiple collections, and multiple databases. What good would a database be without any form of transactional data integrity guarantee?

Before we dive in this blog post, you can find all the code and try multi-document ACID transactions here.

Quick start

Step 1: Start MongoDB

Start a single node MongoDB ReplicaSet in version 4.0.0 minimum on localhost, port 27017.

If you use Docker:

• You can use start-mongo.sh.
• When you are done, you can use stop-mongo.sh.
• If you want to connect to MongoDB with the Mongo Shell, you can use connect-mongo.sh.

If you prefer to start mongod manually:

• mkdir /tmp/data && mongod --dbpath /tmp/data --replSet rs
• mongo --eval 'rs.initiate()'

Step 2: Start Java