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Selecting and applying CSS themes through PHP
Generating CSS through PHP example from a Well House Consultants training course
More on Generating CSS through PHP [link]

This example is described in the following article(s):
   • Setting your colour theme through PHP - [link]

If you're searching for a page where you can view this page, select here

This example references the following resources:
http://www.wellho.net/pix/tramm5.jpg
http://www.wellho.net/net/contact.html

Source code: west.html Module: H118
<?php

// Setting up the required theme and storing a cookie
/////////////////////////////////////////////////////

$using_theme = "standard";
if ($_COOKIE[theme]) {
        $using_theme = $_COOKIE[theme];
        }
if ($_REQUEST[newtheme]) {
        $using_theme = $_REQUEST[newtheme];
        setcookie("theme",$_REQUEST[newtheme]);
        }

/* Setting up built in themes */
////////////////////////////////

/* Firstly, a standard theme */
$themes = array();
$themes["standard"] = array(
        "overtext" => "navy",
        "overback" => "#FFFFDD",
        "overfont" => "Georgia, Sans-serif",
        "dda" => "");
/* Then (partial) themes that will override it */
$themes["brushwood"] = array(
        "overtext" => "#335500",
        "overback" => "#FFDD99",
        "overfont" => "Verdana");
$themes["large"] = array(
        "overtext" => "#335500",
        "overback" => "#FFDD99",
        "dda" => "font-size: 24px;",
        "overfont" => "Courier");

/* Make up the theme by altering the standard */
////////////////////////////////////////////////

$thistheme = $themes["standard"];
if ($using_theme and $themes[$using_theme]) {
        foreach (array_keys($themes[$using_theme]) as $element) {
                $thistheme[$element] = $themes[$using_theme][$element];
                }
        }

/* Provide a theme pulldown */
//////////////////////////////

$opts = "<select name=newtheme>";
foreach (array_keys($themes) as $themename) {
        $opts .= "<option value=$themename>$themename</option>";
        }
$opts .= "</select>";

/* And use all that lot in the page that we're displaying */
////////////////////////////////////////////////////////////
?>
<html>
<head>
<style type="text/css">
* {  /* Styles with PHP */
color: <?= $thistheme[overtext] ?>;
background-color: <?= $thistheme[overback] ?>;
font-family: "<?= $thistheme[overfont] ?>";
<?= $thistheme[dda] ?>
margin: 5px;
}
h1 {
display:block; }
p {
margin-top: 5px;
margin-bottom: 10px;
}
p#header {
background-color: #FFFF99;
display:block;
}
.fineprint {
font-size: 66%; }
</style>

<title>Applying themes through PHP</title>
</head>
<body>
<p id=header>
<img src=/wiltshire/wiwb1.jpg width=300>
<img src=/wiltshire/wiwb2.jpg width=300>
</p>

<p><img src=http://www.wellho.net/pix/tramm5.jpg style="float: left;">
<h1>The title of this page</h1></p>

<p>Follow <a href=west.html>this link to go west</a> ...</p>

<p>This is main piece of
text about the place we're on about; it's a great place and we know that
because everywhere in Wiltshire is great (we could make an exception for
Calne but the Calnivous might come to get us)</p>

<p>Just 100 miles to the West of London, and with a train that runs on
time on the 3rd Tuesday of each Month, you can predict that we'll have
a number of visitors to the place. However, it's quite tricky to come
up with an STP (Spurious Text Page) that give us enough to go on.</p>

<br clear=all />

<div class=fineprint>

<p>For further informnation on Wiltshire, please contact the people
who live there.  They can be reached via
<a href=mailto:lisa@sheepbingo.co.uk>this email link</a> or via
<a href=http://www.wellho.net/net/contact.html>this contact form</a>.
</p>

<p>Your current theme is <?= $using_theme ?></p>

<p><form method=post>Change theme to <?= $opts ?> and
<input type=submit value=go! /></form></p>
<p>Copyright, Well House Consultants, 2006</p>
</div>
</body>
</html>

Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in PHP
 * PHP Programming
Also available on on site courses for larger groups

Books covering this topic
Yes. We have over 700 books in our library. Books covering PHP are listed here and when you've selected a relevant book we'll link you on to Amazon to order.

Other Examples
This example comes from our "Generating CSS through PHP" training module. You'll find a description of the topic and some other closely related examples on the "Generating CSS through PHP" module index page.

Full description of the source code
You can learn more about this example on the training courses listed on this page, on which you'll be given a full set of training notes.

Many other training modules are available for download (for limited use) from our download centre under an Open Training Notes License.

Other resources
• Our Solutions centre provides a number of longer technical articles.
• Our Opentalk forum archive provides a question and answer centre.
The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• And there's a global index here.

Web site author
This web site is written and maintained by Well House Consultants.

Purpose of this website
This is a sample program, class demonstration or answer from a training course. It's main purpose is to provide an after-course service to customers who have attended our public private or on site courses, but the examples are made generally available under conditions described below.

Conditions of use
Past attendees on our training courses are welcome to use individual examples in the course of their programming, but must check the examples they use to ensure that they are suitable for their job. Remember that some of our examples show you how not to do things - check in your notes. Well House Consultants take no responsibility for the suitability of these example programs to customer's needs.

This program is copyright Well House Consultants Ltd. You are forbidden from using it for running your own training courses without our prior written permission. See our page on courseware provision for more details.

Any of our images within this code may NOT be reused on a public URL without our prior permission. For Bona Fide personal use, we will often grant you permission provided that you provide a link back. Commercial use on a website will incur a license fee for each image used - details on request.

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