To begin, open up an existing PHP file in an existing project. For this tutorial, we will be using the project created in the tutorial 'Creating a Project Using PHPEclipse' but you can use any PHP project you like.

To start, we will create a simple script that has some variables and a control structure. This will give us something interesting to view with the debugger. We'll start with the code below:

$output = '';

for ($i=0;$i<10;$i++) {
    $output .= 'Loop'.$i.' ';
    echo $output;
}

This program is very simple, but it will allow us to watch variables and step through a program.