Loops in PHP

Loops are important program flow control. For example, the problem of raising a number to a power that we used as an example when considering the switch statement, can be solved much easier and more efficient using one of the loop statements. A number is raised to a certain power by multiplying it by itself this number of times. For example, the operation of raising 2 to the power of 3 can be written as follows: 2*2*2. But what if a number has to be raised to the power of 100? This task is somewhat more difficult. Even more difficult is the problem when the power is not known in advance. Here is where loops come to the rescue.

The most often used loop is the for loop. It is also the easiest to understand, so we start our study of loops with it. In the general format it looks as the following:

for (start counter value; end counter value; counter step)
 Statements

Let's use the for loop to raise a number to a power. The code for this may look like the following:

PHP Web Hosting

If you are looking for the key to your website design then PHP, PHP Hypertext Processor, just might be the thing. PHP is one of the most popular open source scripting languages and with it you will be able to create beautifully designed dynamic websites. One of its biggest advantages is that it is so very easy to use that even the most inexperienced web developer will be able to use it. Why make life more difficult than it has to be?

PHP and Web Development

As PHP is open source it is also free and to that it will match all of your web design requirements. When looking at PHP Hosting you will quickly notice that it is usually part of a web hosting package known as LAMP for Linux, Apache, MySQL and PHP. Linux is the operating system that is being used, Apache is the web server software, MySQL is the database management system that you will be using and PHP is nothing less than the programming language.