PHP is a powerful server-side scripting language for creating dynamic and interactive websites. PHP is the widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP is perfectly suited for Web development and can be embedded directly into the HTML code. SQL (Structured Query Language) is an ANSI (American National Standards Institute) standard for accessing database systems. SQL statements are used to retrieve and update data in a database. By mastering these subjects you will be able to develop and maintain dynamic and interactive web pages and also retrieve and update data from a database over the internet. The PHP Developer Certificate proves fundamental knowledge of web development using PHP and SQL (MySQL).