PHP and MySQL
Brian E. Travis · Apress eBooks · 2011
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. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.