Blog (4 of 14)
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When to Abstract?
One of the most difficult challenges in a developers life is finding the "right" abstraction, or at least the best one given the current circumstances. The core problem is that abstraction is a bet on the future development of the software and we know that future is volatile. The circumstances will change, so will the view on the best abstraction change.
Tuesday, 17 May 2016Read more ➞ -
Never Use null
When doing code reviews together with our customers we see a pattern regularly which I consider problematic in multiple regards – the usage of null as a valid property or return value. We can do better than this.
Tuesday, 3 May 2016Read more ➞ -
Common Bottlenecks in Performance Tests
Most developers by now internalized that we should not invest time in optimizations before we know what happens exactly. This is true for optimizations in your PHP code but also for optimizations regarding your infrastructure. We should measure before we try to optimize and waste time. How can this be done?
Tuesday, 19 April 2016Read more ➞ -
Using Mink in PHPUnit
Another day for a short PHPUnit trick. If you want to use PHPunit to control a browser for functional or acceptence tests, then you can easily do this using the Mink library. Mink is well known from the Behat community to facilitate Behaviour-Driven Development (BDD), but it is a standalone library that can be used with PHPUnit just as easily.
Tuesday, 5 April 2016Read more ➞ -
Why Architecture is Important
We experience that the system architectures of our customers grow more and more complex. This is either because of scaling requirements or because developers like to try out new technologies like implementing Microservices. What are the challenges with this and how can we overcome them?
Tuesday, 22 March 2016Read more ➞ -
Testing Effects of Commands With Phake::capture()
Today I want to share a simple trick for the excellent Mocking library Phake when testing state on APIs that don't return values.
Tuesday, 8 March 2016Read more ➞ -
Teaching and Learning Domain-Driven Design without Patterns
When development teams start to use Domain-Driven Design (DDD) in work projects, then one or more developers read the blue book by Eric Evans and start to apply patterns such as Entity, Repository, Services and Value Objects. In my experience with teams using DDD it can be very distracting to think in patterns. Read about a more practical way to get started…
Friday, 26 February 2016Read more ➞ -
Analyze the Quality Of Your PHP Code
In code reviews we often browse metrics, source code and reported code issues together with our customers. This leads to discussions about the current state of the code and possible improvements. First we used a bunch of shells scripts for that. In a second step we developed a simple PHP (Open Source) application helping us to do the job. Now we did the third step and rewrote that application into a React based client side (Open Source) application. Read on for the reasons and benefits…
Friday, 23 October 2015Read more ➞ -
Utilize Dynamic Dispatch
Dynamic Dispatch is one of the fundamental powers of object oriented programming. By using static access or traits, you throw away this power.
Thursday, 16 October 2014Read more ➞ -
Testing Micro Services
End-to-end tests for micro service architecture are hardly to achieve. This blog post outlines a method to assert end-to-end functionality by measuring metrics.
Tuesday, 16 September 2014Read more ➞ -
Code Reuse By Inheritance
Using inheritance for the purpose of code-reuse is a code smell. In this post I explain why.
Monday, 20 January 2014Read more ➞ -
ContainerAware Considered Harmful
Making objects aware of the Dependency Injection Container can seriously harm the object oriented structure of your application.
Monday, 7 October 2013Read more ➞
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