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Why OpenPro uses open source php

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PHP and LAMP, the key to Open Source ERP software

PHP is the scripting language for OpenPro open source erp
What is the PHP scripting language? Why is it so popular for open source software? How does it work? How can I start using it? These are all questions that the newbie Web professional (and others) ask, especially as PHP becomes the de facto standard rivaling ASP and JSP. OpenPro business software is the first ERP software solution to use PHP scripting language.

What is PHP?
PHP is the P in the LAMP stack, or Linux, Apache, Mysql and PHP. PHP (Hypertext Preprocessor) is an open source, server-side, HTML embedded scripting language used to create dynamic Web pages. PHP script is embedded within an HTML document, and the programmer can jump between HTML and PHP seamlessly within the document, while the code remains inaccessible to users because it is processed on the server. It combines the power of CGI scripting with the ease of working within HTML.Why is this important? Well, “way back when,” a form on a Web page was a big deal, and coders across the land struggled with complex CGI scripting to make something as simple as sending the contents of a form to e-mail work reliably. For those of us working on Intranets who were not hardcore coders, it was a hair-pulling affair even when using pre-written freeware scripts.

Today, however, with the relative ease of PHP coupled with its depth and power, it is not only easier than ever to write your own code, but the Web abounds with free and shareware PHP scripts at places like OpenPro,  Hotscripts and PHP Scripts. From calendars to shopping carts, the list is endless.

Why is it Popular?
Part of why PHP is popular is simply because it has become ubiquitous. Hosting companies install it as part of their core package and more and more useful applications for the end user are available. The upsurge in open source usage certainly helps the case for PHP. To get a sense of the trend of popularity and growth of PHP, visit these recent Netcraft survey results at
Clearly PHP has arrived and is here to stay. Certainly the world didn’t need another scripting language just for the fun of it, so what did PHP do that the others didn’t? Here are some of the key advantages that PHP offers and why OpenPro uses it:

  • Ease of use
  • Enhanced security
  • Cross-platform operability
  • Compatibility with a wide variety of databases
  • Support for most current web servers
  • Communicates with numerous network protocols
  • Not limited to HTML output
  • Strong text processing capabilities
  • Transparency to the end user
  • Support for regular expressions
  • PHP offers the best of both
    worlds since it allows access to built-in variables like CGI and can interact with forms and cookies, yet maintains the elegance and simplicity of an easy to learn, easy to use language with high degrees of code reusability.
  • Once you have an operating system and Web server setup, PHP installation is fairly easy. Essentially you need to install the PHP processor and have your server associate .php files with it. has detailed installation instructions for UNIX/Linux, Windows, and Mac OS on its Website.
  • Once you have PHP installed, all you need to do is place your php files in your Web directories and the server will automatically parse them when someone points their web-browser to that page.
  • The amount of support available for PHP is wide. Don’t think that Open Source means lack of “formal” resources or that you have to go it alone. A quick glance at PHP.Net boasts numerous new “news” items ranging from the new O’Reilly book Mastering Regular Expressions, to the announcement of several conferences, expos, and learning opportunities.
  • And, if you prefer working with a third-party that packages everything together nicely for you and offers support, you can take that route with PHP as well. Zend is a company that provides products and consulting to enhance the entire PHP lifecycle within your organization. Zend has taken all the pieces of PHP from the server platform to the developers desktop and made it enterprise-ready with less effort and less
    time on the part of the IT staff.
  • If certification is a big deal for you and your staff, now you can take that route with PHP as well. In September 2006 Zend announced the availability of PHP certification enabling developers to test and certify their expertise. As PHP within the enterprise grows, it gives you a way to measure staff and consultant savvy in an objective way.

How Does it Work?
PHP code can be embedded into HTML, XML, or plain text for the purpose of generating dynamic content for a variety of web outputs. As a document is called from a browser, the Web server encounters the PHP code and sends it through the PHP processor for execution. Dynamically generated results are then displayed back to the user in her browser. Part of what makes PHP so powerful is how transparent to the user the myriad of things that PHP can do on the backend is. It can do many things, some of the most popular being:

  • Interacting with a database
  • Integrating with external libraries to generate PDF documents and parse XML
  • Accessing and using built-in variables from both the server side(environmental variables) and the client side (forms, cookies, etc.)
  • Memory management
  • With the relatively short learning curve for programmers, the widely available open source support community, frequency of new releases, and speed of execution, it makes PHP ideal for web developers.

How Can I Start Using It?
The simple answer? Jump right in! The one thing that holds true regardless of the technology you work with is this: the infamous “hello world” is the way to get started.

In PHP, our “hello world” would look as follows:

As you can see, it is essentially a HTML page with one line of PHP code indicated by the opening tag. It uses the PHP function “echo” to output the content contained within single quotes. The beauty of PHP is that you can jump in and out of PHP coding using these tags within your HTML. Like
with all text-based code, use a text editor (not a word processor) for best results.

If you wish to see all your PHP system information and configuration details, add the following line to the PHP file you created above:
This is an example of tapping into PHP’s power to access built-in variables. As you would expect, PHP has a complete syntax all its own. From variables to operators to built-in functions, it is pretty much the same as anything else – refer to the reference

manual until it becomes second nature. For my next few examples I will be assuming basic web programming knowledge, so if you need to reference something, refer to the complete online manual for PHP at:
Now you have the very basics. In fact, you are well on your way to understanding and being able to tweak other people’s scripts for your own use. As with any new language, experimentation is the best teacher. Once you think you’ve got it down, take a look at Intranet Journal’s tutorial on building a content management system with PHP.

The Bottom Line: Open Source ERP software is more flexible and less costly with PHP.

We hope this page gave you a better understanding of why OpenPro uses PHP, and how you can have a complete business system running using the LAMP stack and OpenPro ERP Software.

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