Introduction

The idea of this tutorial is to have a starting point for all developer who wants to create their own OntoWiki extensions. This includes basic PHP and Zend Skills as well as configuration and setup information for a developers PHP engine.

Tutorials for PHP Beginners

If you are new to PHP, please have a look at one of these tutorials:

• http://tut.php-q.net/ (en + de)
• http://www.w3schools.com/PHP/ (en)
• http://www.professionelle-softwareentwicklung-mit-php5.de/erste_auflage/index.html (de)

Tutorials for Zend Beginners

If you know PHP but not Zend, we recommend these tutorial cause it refers to the newest Zend version:

• http://framework.zend.com/docs/quickstart

PHP Configuration for Developers

All you need is to re-configure your OntoWiki Installation to use the debug mode. For this, add the following line to your config.ini.

debug = on

In addition to this, we recommend the php extension xdebug for all OntoWiki developer. xDebug provides stack traces and function traces in error messages with:

• full parameter display for user defined functions
• function name, file name and line indications
• support for member functions

We recommend to re-configure some php runtime variables for OntoWiki. Please have a look at RecommendedPHPSettings

Tutorials for OntoWiki Extension Development Beginners

As further readings, please visit the following wiki pages:

• ExtensionCookbook
• CodingStandard