Hi Shaun. You don't need PHP for that. Simply create a single HTML page and name it 'index.html'. Then you can use HTML text for the rest. Here is a page idea for you;
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Under Construction</title>
<style type="text/css">
<!--
#wrapper {
width: 600px;
margin: 200px auto 50px auto;
}
body {
font-family: Arial, Helvetica, sans-serif;
text-align: center;
}
.large {font-size: 24px;}
-->
</style>
</head>
<body>
<div id="wrapper"><span class="large">This website is currently under construction.</span><br />
<br />
Check back in a few weeks to see the finished site. If you need to contact us then mail: <a href="mailto:sample@sample.com">sample@sample.com</a></div>
</body>
</html>
You will need to replace the sample e-mail address references with your own.
Fairly quick and dirty but will do the job. Hope that helps