| PHP 101 (Part 1) - Secret Agent Man |
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| Wednesday, 12 September 2007 | |||||||
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Ever since Web designers found out about the <FORM> tag, the Internet has seen an explosion in the number of Web sites that depend heavily on user response and interactivity. For a long time, the primary language used to develop such Web sites was Perl. But ask any novice programmer, and he'll tell you that learning Perl isn't exactly a bed of roses... As a result, there has been a proliferation of alternative server-side scripting languages, which perform many of the tasks previously handled by Perl, but have a shorter learning curve. The most well-known of these are ASP and PHP; while the former works primarily on the Windows platform in combination with a clutch of proprietary products, the latter has the unique distinction of being an open-source server-side scripting language that's both fun and easy to learn. Today, it is estimated that more than 1,000,000 Web sites use PHP as a server side scripting language. PHP was first developed by Rasmus Lerdorf as a means of monitoring page views for his online resumé, and slowly started making a mark when PHP/FI was released in mid-1995. This version of PHP had support for some basic Web functions - the ability to handle form data, support for the mSQL database, and more. As PHP's popularity grew, the development of the language shifted from Rasmus to a team of dedicated programmers who took upon themselves the onus of rewriting the PHP parser from scratch. The result of the efforts was PHP 3.0, which included support for a wider range of databases, including MySQL and Oracle. And PHP 4.0, which was released a few weeks ago, uses the powerful new Zend scripting engine to deliver better performance, supports Web servers other than Apache, and comes with in-built support for session management. Our goal in this series of articles is very simple - we'll be teaching you the basics of using PHP to power your Web site, and related Web development efforts. The only assumptions we're going to make throughout this series are that you know the basics of HTML, are using a properly configured Web server running PHP4, and have a sense of humour. If you're running Apache, detailed instructions on configuring it to work with PHP are available at The Soothingly Seamless Setup of Apache, SSL, MySQL, and PHP . Alternatively, download the latest distribution of PHP4 from the official PHP Web site at http://www.php.net and take a look at the installation instructions. |
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