Chapter 3. PHP and MySQL
Drupal is written purely in PHP, an open source, interpreted scripting language. PHP relies on multidimensional arrays for a lot of its processing, and Drupal continues this methodology. PHP has evolved into a serious object-oriented programming language that powers many of the hottest sites on the Internet today.
MySQL is an open source relational database engine that runs pretty efficiently on Linux platforms. Since its humble beginnings, MySQL has evolved into a scalable, robust database platform that's supported in many different operating environments.
This chapter will familiarize you with the basic syntax of PHP and introduce MySQL, with an emphasis on how Drupal uses both technologies, and is aimed at the programmer ...
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