Level Up

A collection of resources for WordPress Developers, written and curated by experts


Plugin Development9 resources

The End of Jigoshop? What Happened to The Once-Popular Ecommerce WordPress Plugin

I woke up this morning to an email from an old client from my days as a freelancer building WordPress sites, asking about SCA compliance. I built them an ecommerce…

Iain Poulson

Sep 24, 2019

How We Improved Composer Support For Our Premium Plugins Again

Composer is my go-to method of managing free plugins in WordPress sites. However, managing premium plugins is a little more tricky. Last year we introduced full Composer support for our…

Iain Poulson

Mar 19, 2019

How We Built Full Composer Support For Our Premium WordPress Plugins

Composer is the dependency manager of choice for PHP. It allows you to declare a list of project dependencies and will install and update them directly from the command line,…


Feb 27, 2018

Behind-the-Scenes: How We’re Automating Acceptance Testing

Have you ever had the joy of carrying out acceptance tests? For our team at Delicious Brains, testing our releases, in the past, has been one of the most dreaded…


Aug 15, 2017

Using Codeception to Automate WordPress Plugin Testing

When the time comes to release a new update to one of our plugins, the Delicious Brains team gets all excited at delivering more features and improvements to our customers,…

Iain Poulson

Apr 5, 2016

The Awkward Addon Pricing Model For WordPress Plugins

The release of WP Offload S3 this year saw our portfolio double in size and, like our flagship product WP Migrate DB Pro, WP Offload S3 comes with addon plugins…

Iain Poulson

Jan 7, 2016

Unit Testing Ajax and API Requests in WordPress Plugins

I am scared of unit testing. There, I’ve said it. Unit testing is one of those practices that I know I should be doing, there are benefits to doing it,…

Iain Poulson

Nov 3, 2015

WordPress Library Review: Extended CPTs

There are a number of introductions to WordPress Custom Post Types (CPT) to be found on the web that show how to create them, both with admin plugins and manually…


Jun 23, 2015

Struggles Developing a Commercial WordPress Plugin

Building software to sell is a tricky business. It isn’t always as simple as writing code and getting people to buy it. WordPress commercial plugins come with their own set…

Iain Poulson

May 19, 2015