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Portrait Stefan Priebsch

Even older digital watches would outperform Stefan Priebsch's first computer. He has been an IT consultant for over 20 years, holds an academic degree in computer science, is the author of several textbooks, and a university lecturer on professional web development. He presents and keynotes at technology conferences around the world. As Co-Founder and Principal Consultant of The PHP Consulting Company (thePHP.cc), Stefan helps his clients to develop software successfully. He spends his free time playing electric guitar and researching agile home improvement.

Open Source Projects

  • Dependency Injection for Stream Wrappers
  • Experiment-Driven Development
  • Master/Child Dependency Injection Factory


  1. PHP 7 Explained with Sebastian Bergmann and Arne Blankerts, thePHP.cc Press, 2016
  2. Softwarequalität in PHP-Projekten, 2. Auflage with Sebastian Bergmann, Carl Hanser Verlag, 2013
  3. Real-World Solutions for Developing High-Quality PHP Frameworks and Applications with Sebastian Bergmann, Wrox, 2011
  4. Softwarequalität in PHP-Projekten with Sebastian Bergmann, Carl Hanser Verlag, 2010
  5. PHP 5.3 schnell+kompakt entwickler.press, 2009
  6. php|architect's Guide to PHP 5 Migration Marco Tabini & Associates, Inc., 2008
  7. PHP migrieren: Konzepte und Lösungen zur Migration von PHP-Anwendungen und -Umgebungen Carl Hanser Verlag, 2008
  8. Enterprise PHP-Tools entwickler.press, 2006

I avoid complexity in my solutions. Successful is who finds simple solutions for hard problems and can with the implementation today instead of tomorrow.

Stefan Priebsch


PHP 7 Explained

With deep knowledge and practical experience, Sebastian Bergmann, Arne Blankerts und Stefan Priebsch explain everything you need to know about PHP 7.

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Built-In Bytecode Cache

PHP 5.5 ships with a built-in bytecode cache. We provide background information an show how you can easily benefit from improved performance.

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Open Source

Open Knowledge

Following our visit to the Wikimedia Foundation headquarters in San Francisco last year we supported the foundation's German branch in Berlin this year.

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Contact Stefan Priebsch if you need advice on software architecture, OOP, or frameworks.