Online Smarty PHP Services

Intro to PHP

In The Online Smarty PHP Services
we'll introduce you to one of the Internet's hottest and fastest
growing server side programming languages, PHP.

What can PHP do?

PHP
is mainly focused on server-side scripting, so you can do anything any
other CGI program can do, such as collect form data, generate dynamic
page content, or send and receive cookies. But PHP can do much more.

There are three main areas where PHP scripts are used.

•
Server-side scripting. This is the most traditional and main target
field for PHP. You need three things to make this work. The PHP parser
(CGI or server module), a web server and a web browser. You need to run
the web server, with a connected PHP installation. You can access the
PHP program output with a web browser, viewing the PHP page through the
server. All these can run on your home machine if you are just
experimenting with PHP programming

• Command line scripting. You
can make a PHP script to run it without any server or browser. You only
need the PHP parser to use it this way. This type of usage is ideal for
scripts regularly executed using cron (on *nix or Linux) or Task
Scheduler (on Windows). These scripts can also be used for simple text
processing tasks.

• Writing desktop applications. PHP is probably
not the very best language to create a desktop application with a
graphical user interface, but if you know PHP very well, and would like
to use some advanced PHP features in your client-side applications you
can also use PHP-GTK to write such programs. You also have the ability
to write cross-platform applications this way. PHP-GTK is an extension
to PHP, not available in the main distribution.

PHP can be used
on all major operating systems, including Linux, many Unix variants
(including HP-UX, Solaris and OpenBSD), Microsoft Windows, Mac OS X,
RISC OS, and probably others. PHP has also support for most of the web
servers today. This includes Apache, Microsoft Internet Information
Server, Personal Web Server, Netscape and iPlanet servers, Oreilly
Website Pro server, Caudium, Xitami, OmniHTTPd, and many others. For
the majority of the servers PHP has a module, for the others supporting
the CGI standard, PHP can work as a CGI processor.

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