Functions are used to perform a well defined task that is normally repeated at various places within a web site, web application, or other software application. The function sometimes needs certain information before performing its task, and sometimes returns a value to the calling page or program.

An example of how to use a simple function in PHP:

 function showMessage() {
echo "{$_SESSION["message"]}"; }

The above example shows a very simple function that displays the contents of a session variable called 'message'. The idea being that while a user is using a web site, etc, various messages are generated and stored in the 'message' session variable. Whenever the showMessage function is called, the contents of the session variable are displayed. So, for example, when the user logs on, you could display a message saying that they have done so. Likewise, when they log off, a different message could be displayed.

Calling a function

To call the showMessage function, you would just need to include the line:

showMessage()

in the web page (wrapped in php tags to distinguish it from normall HTML).

Passing values to a function

Often, a function requires one or more input values in order to perform its task. For example, take the following example that takes two numbers as input, and adds them together. The result is then returned to the calling web page or program.

function addNumbers($number1,$number2) {
$answer = $number1 + $number2;
return $answer; }

In the calling program we would have something similar to the following:

$number1 = "5";
$number2 = "6";
$sumOfNumbers = addNumbers($number1,$number2);
echo "$sumOfNumbers";

Obviously, in a real program you would not have the numbers hardcoded like this, but they would be obtained from user input or by some other means. Notice also that although the name of the returned variable is $answer, the calling program makes no reference to that. We could, if we wanted to, change the calling program to:

$answer = addNumbers($number1,$number2);
echo "$answer";

which might make things slightly easier to understand.

Servers are systems which are used to manage computer networks. They are able to perform all kinds of activities and they could be dedicated to a particular job. For instance, a file server stores the files which contain data and information that belong to a certain network. An example of this would be Microsoft's Exchange Server, which is dedicated to handle business mails as well as other types of business communication. Another example would be multiprocessor servers that handle several tasks simultaneously such as managing mailboxes, storing data and other tasks.

Servers have been basically created to be able to have better management of data. They make the whole process of information management faster and safer. However, there are also other applications for servers. These would include the provision of access to the Internet. A lot of people make use of a server, which has been provided by a company, which manages the availability of web connectivity and other services for them. This actually makes it a lot cheaper and easier to use so that we can stay connected online.

Servers are also useful to manage official communication. Since virtually all offices today are running on LAN servers, companies are able to connect and manage all their computers centrally and conveniently. It also serves as a cheaper, simpler and safer method to keep everything well managed.

Servers also permit remote access. If an individual has to access a computer in the main office and he or she is traveling, that individual can access the information that he or she needs from that computer using a computer at the current location which is also connected to the same server where the other one is connected to.

Let's say you have a website. You probably feel pretty good about it. You have a presence. People can find you. You're out there. Sure, these are all good things; the only problem is everyone has a website. A website is the bare minimum.

A website is only just enough.

As a small business owner, as an entrepreneur as an upstart you must standout. You are the underdog. Underdogs don't out hustle the more established folks by doing just enough. And if you only have a website, you are only doing just enough.

Want to build your business and exceed your goals?

Do more than just enough.

Hold on, let's get down to it. If you consider how advanced the internet has become in just the last 5 years, if you only have a company website you aren't doing just enough.

You're doing less than enough.

You're doing enough to exist, but not enough to excel.

You're doing enough to be counted, but not enough to go over the top.

I'm sorry. I really like you. I wish you the best, but the truth is you're behind the curve.

You can change it, but to do that, first you need to change how you see the web and the possibilities. You've got to decide if you're serious about your business? Is your business concept a winner or a loser? Can it work? Is it working? What to do about it? More of the same isn't the answer. Making your website more pretty isn't going to cut it. You need to diversify.

I may be blunt, but I'm not exaggerating. Like John McCain says, "Time for some straight talk".

A business website should be only one piece of your web presence. You should also have a presence on every social networking website out there. You should have articles related to your business all across the information superhighway. You should belong to all the major (and some not so major) business networking sites. You should have a video on YouTube, a Face book, a MySpace and a Squidoo page. You should be everywhere other business owners congregate, share ideas, exchange referrals and talk shop.

You must be there.

No excuses.

No exceptions.

Sure, it takes time to set up marketing mechanisms across the many websites that are available, but it's time well invested because your company website isn't the end all to be all of generating buzz and finding leads on the internet, your website is just the beginning.

Make a commitment to your business and cease and desist looking at those social networking sites as options. They aren't options, they are necessities.

If you need more reasons to justify putting your resources into more than a company website, just take a look at Barack Obama's surge. Obama-mania owes much of its energy and support to the social networking sites that it uses. Get involved and secure some of that same viral power for your business. 99% of it is free and 100% of it is good business.

Welcome to the first day of your new way of looking at promoting your business on the net.

Go get started yesterday.