Con este libro aprenderás a programar aplicaciones web desde cero en PHP y utilizar la base de datos MySQL (Description in English below). Combinando las dos potentes herramientas, sin conocimiento previo de programación o manejo de bases de datos, en poco tiempo podrás programar tus páginas web y aplicaciones. Esta quinta edición incluye contenidos para manejar la última versión del paquete de programas XAMPP, el cual permite desarrollar aplicaciones web de forma sencilla y rápida. Se han añadido dos nuevos capítulos que analizan las últimas características del lenguaje PHP, así como AJAX, una de las tecnologías para crear páginas más dinámicas y rápidas. Description in English: With this book you will learn how to program web applications from scratch in PHP and use the MySQL database. By combining these two powerful tools - and without any previous knowledge of programming or database management -, in a short time, you will be able to program your web pages and develop applications used today in many portals, such as forms, forums, counters visits, banner rotators, etc.In this fifth edition, contents have been added to handle the latest version of the XAMPP program package, which will allow us to develop complete web applications easily and quickly. This will include the Apache web server, the PHP interpreter and the MySQL database manager. In addition, two new chapters have been added in which we will analyze the latest language features.PHP, as well as AJAX, one of the technologies currently used to create more dynamic and faster Internet pages.Thanks to this content you will find it very easy to learn how to create your own website; even professional projects, since it is developed so that all the chapters include examples with the code necessary to make them work