Amsterdam
SymfonyCon
From to , I will be in Amsterdam at SymfonyCon. There I will give the presentation "Testing with(out) dependencies".
I will share the practical techniques that I use to identify and resolve performance bottlenecks in PHP applications. You will learn how to visualize your software's execution, pinpoint slow units of code and inefficient call patterns, measure execution costs under controlled conditions, and spot regressions across versions or changes.
Using real-world examples from my experience, I will demonstrate how I progress from identifying a perceived slowdown to gaining actionable insights. Whether you are developing business-critical APIs or large-scale web platforms, this presentation will hone your ability to diagnose and resolve performance issues with confidence.
This presentation currently exists only as an idea and has not yet been accepted by a conference.
My name is Sebastian Bergmann, and I have been working as a software developer and consultant in the PHP ecosystem for over 25 years. I support development teams in creating better software through modern practices, tools and training.
I am deeply committed to Open Source, maintain critical Open Source projects in the PHP ecosystem, and help shape the work of the PHP Foundation as a member of its board. I have also represented the interests of Open Source at the European Commission and am active in the Open Source Working Group ("Arbeitskreis Open Source Software") of the German Informatics Society ("Gesellschaft für Informatik").
I live and breathe Open Source and help shape how developers around the world test, write, and maintain their code.
More events where you can meet me are listed here.
My interactive online training courses are designed to provide you with practical knowledge that you can apply immediately. The next ones starting soon are listed here.
From to , I will be in Amsterdam at SymfonyCon. There I will give the presentation "Testing with(out) dependencies".