Tag: Introduction

PHP: An introduction to the programming lanaguage

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PHP: An introduction to the programming lanaguage

PHP, which stands for PHP: Hypertext Preprocessor, is an open source HTML-embedded scripting language generally used for websites all over the internet. It’s main purpose is to allow for the quick programming of interactive, dynamically generated web pages.

PHP 5 is the current version of the language with its main enhancements being in the areas of object-oriented programming. All versions of PHP newer than version 2 are currently supported and in use.

PHP code is generally embedded into an existing web page through the use of code delimiters in a similar manner as ASP, ASP.NET or Ruby. Unlike JavaScript, which runs within a browser, PHP code gets interpreted on the server, generating HTML that gets sent to the client browser to be rendered. One of the language’s benefits is its ease of use for newer developers, while still retaining a robust list of advanced features for more experienced programmers to exploit.

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While it is primarily used for web site programming, PHP can also be used as a command-line scripting language suitable for simple text processing tasks.

It also can be used to develop desktop applications with a graphical interface using the PHP-GTK library extension, but this isn’t the best use for PHP when compared to other languages designed for GUI development.

A major advantage of PHP is its neutrality towards operating systems and web server software. It works on all major operating system platforms, and supports most of the major web servers including Apache and Microsoft’s IIS. Another main feature is PHP’s ubiquitous database support which includes both large proprietary systems like Oracle and open source options like mySQL.

The success of PHP is an excellent statement about the quality of open source initiatives in a largely proprietary software development world.
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PHP Bible, 2nd Edition

* Covers why users need PHP, how to get started, how to add PHP to HTML, and how to connect HTML Web pages to MySQL or Oracle databases.
* Authors have extensive experience using PHP and provide case studies of how and where to use PHP.
* Covers advanced topics, such as HTTP, cookies, Web services, redirection, building graphics, and sessions.

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Get the independent generic version of this tutorial in text tutorial form here: www.developphp.com Web Intersect Source Code: www.webintersect.com Adam teaches how to throw down on custom PHP MySQL Pagination programming.
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PHP script introduction

Article by Archan

PHP is a scripting language mainly developed for web development. A scripting language differs from compiled language in this respect that a compiled language like C, VB, etc. first compiled and then converted into machine code which depends upon the hardware of a particular machine. That machine code commonly stored as exe file. Upon request that exe file runs to implement the program job. On the other hand a script program is a program which runs under another program. Scripts are written in ASCII text format. The parent program, usually known as script engine, read the script code line by line and executes them. Hence a script program is much slower and limited in features than a compiled program. But one advantage of a script programs are that they are portable and can be edited any time since they are written in plain text format. But once exe file created a compiled program can’t be edited since they are written in binary code.

Advantages of PHP

PHP has many advantages over other languages which make it most popular and widely used program language used for web development. These advantages are listed below.

It is open source general purpose language; so it is freely available to all. There are many third party developers who develop extensions for PHP to improve its functionality. Examples of few such developments are PEAR package, GD library, ZLib extension, etc.PHP can be installed under all popular operating system including Windows, Linux and Mac.From version-4 and onwards PHP supports object oriented programming method.PHP can be mixed within HTML code. In an HTML page you can start writing script code within starting and ending tags. But the resulting page must be saved in PHP format (i.e. with .php extension) in order to run script code.As scripting language, – program in PHP are written in plain text and hence they are portable.Writing or editing program only requires a plain text editor. You can use Windows Notepad to write a program or to edit it.PHP is a server side scripting language, i.e. the HTML code required to build a webpage are generated at the server end and reach to the client computer. So the source code security is better than ASP or other client side language.PHP is very much user friendly language. In general a programmer requires smaller time to learn it than other scripting language.PHP is very rich language. For every functionalities which a programmer requires to build a dynamic website such as receiving form data, sending and receiving cookie, handling file upload, processing file and directory, handling array, etc. PHP comes with several inbuilt functions to implement them.Today all modern websites are supported by remote database. Among the external database MySql database is the most popular. PHP have a rich set of inbuilt functions to connect with MySql database server, access data from it and process them. Actually MySql supported PHP website is the most common and popular way of building website today.Another advantage of PHP is its large community. There are several thousands of very high quality websites which provide free code, tutorial, code help, free tools and scripts on PHP. From a simple arithmetic operation to a complex database query design, almost for every topic you can get a ready made solution from internet. In no other language have such a wide range of support available.

All though php is mainly developed for the purpose of web development but you can develop a small portable utility, such as file processing of a local computer with PHP.

Author’s website contains a free blog script, Spam free PHP GuestBook script and many other free scripts, articles such as PHP cookie, for web design and development.










Quick PHP Scripts: Visitor Tracking Script

What this is:
This is a very simple script to keep track of your website’s visitors (ex IP, referral URL, browser,etc)
What you need:
Some minor understanding and access to your SQL server is required to get this script working, as well as some understanding of how to cut and paste.

This will record each visitor’s IP, User agent, URL visited, and, if available the URL of the referring website. Simply copy and paste the provided code and then make the few simple mo

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