PHP Back to Basics 3: Arrays Support

In this tutorial we will be looking at arrays, which are extremely widely used in PHP

In this tutorial we will be looking at arrays, which are extremely widely used in PHP. Data is often returned in the form of an array, for example when you read records from a database, or reading the data entered into an HTML form which has been submitted by the user.

We'll start by looking at what exactly an array is, and then look at the methods which can be used to create or add data to an array. We then look at the various ways you can work with data held in the form of an array, working through each element of the array in turn, and merging the data from two arrays into one.

Finally, we look at sorting data held in an array, so that the data is transformed into alphabetical or numerical order.

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Gareth Downes-Powell

Gareth Downes-PowellGareth has a range of skills, covering many computer and internet related subjects. He is proficient in many different languages including ASP and PHP, and is responsible for the setup and maintenance of both Windows and Linux servers on a daily basis.


In his daily web development work he uses the complete range of Macromedia software, including Dreamweaver MX, Flash MX, Fireworks MX and Director to build a number of websites and applications. Gareth has a close relationship with Macromedia, and as a member of Team Macromedia Dreamweaver, he has worked closely in the development of Dreamweaver, and was a beta tester for Dreamweaver MX.


On a daily basis he provides support for users in the Macromedia forums, answering questions and providing help on a range of different web related subjects. He has also written a number of free and commercial extensions for Dreamweaver MX, to further extend its capabilities using its native JavaScript API’s or C++.


As a web host, Gareth has worked with a range of different servers and operating systems, with the Linux OS as his personal favourite. Most of his development work is done using a combination of Linux, Apache and MySQL and he has written extensively about setting up this type of system, and also running Apache and MySQL under Windows.

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