Classified as "the most popular Apache module" by E-Soft, PHP
15045Classified as "the most popular Apache module" by E-Soft, PHPhttp://www.xmlhack.com/read.php?item=338Yet PHP was among the first languages to support XML (since release 3.0.6, December 98 using James Clark's expat library).PHP > Magazine ArticlesOct 12, 2006
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PHP is an HTML-embedded scripting language. Like Microsoft's ASP technology, it is designed to be processed on the server side and produce dynamic Web pages.
PHP3 is the third version of the interpreter initially developed by Rasmus Lerdorf. It was originally destined to bring dynamic scripting functionality to personal HTML Web pages, which explains why it was christened Personal Home Page. For the second version of PHP, its engine was rewritten so that HTML form management functionality could be added, and its name became PHP/Form Interpreter (PHP/FI) to reflect this change. The arrival of PHP3 coincided with the rise of the Internet wave, a time when many personal and professional users were in need of dynamic behavior on their Web sites: online catalogs and e-commerce applications with shopping cart management. PHP now officially stands for PHP: Hypertext Preprocessor.
PHP is an open source programming language that is widely popular on the web. However because PHP so popular in shared hosting environments, many people have an impression that PHP is only for small scale web-sites. This is patently untrue, and PHP is in use in many large scale web sites such as Yahoo and Lufthansa Online Ticketing for the creation of large web applications such as IMP. This article is an attempt to readdress the balance and show how PHP is used in the enterprise
PHP is a valuable item in any Web developer's toolbox. The server-side technology allows for rapid development of dynamic, database-driven applications. One of PHP's major strengths is its ability to connect with many different databases, including Sybase, PostgreSQL, Oracle, or MySQL.
Database connectivity, however, is also one of PHP's major weaknesses. Specifically, PHP's lack of a standard database API makes switching databases difficult and costly once an application has been written. For example, if you write a program that uses a MySQL database on the back end, and you want to modify that program so that it uses a Sybase database, you'll most likely spend hours modifying the code.
There are a number of great online GIS ( Geographic Information System ) solutions out there, ranging from Mappoint to Mapquest to some cool PHP projects. However, it is still nice to be able to be able plot you own data and put some basic mapping utilities on your site with a minimum of fuss and bother. Over the next couple of articles I will hopefully be able to give you a few pointers on how to create you own basic GIS system for free. I do not claim to be a GIS expert, and there may be better ways to do things, but hopefully these articles will give you a start in the right direction.
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