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PHP Quick Scripting Reference by Mikael Olsson

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Introduction

PHP is a server-side programming language used for creating dynamic websites and interactive web applications. The acronym PHP originally stood for “Personal Home Page,” but as its functionality grew this was changed to “PHP: Hypertext Preprocessor.” This recursive acronym comes from the fact that it takes PHP code as input and produces HTML as output. This means that users do not need to install any software to be able to view PHP generated web pages. All that is required is that the web server has PHP installed in order to interpret the script.

In contrast with HTML sites, PHP sites are dynamically generated. Instead of the site being made up of a large number of static HTML files, a PHP site may consist of only a handful of template ...

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