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Table and graph of same data
Maps, Graphics and Geographics example from a Well House Consultants training course
More on Maps, Graphics and Geographics [link]

This example is described in the following article(s):
   • Computer Graphics in PHP - World (incoming data) to Pixel (screen) conversion - [link]

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

This example references the following resources:
http://www.wellho.net/demo/railtrends.php?place=

Source code: railuse.php Module: H309
<?php

# Take postcode zone from the URL

$place "SN";
if (
preg_match('/^[A-Z]{1,2}$/',$_REQUEST[place],$gotten)) {
        
$place $gotten[0]; }

# Generate the table

$fh fopen("railstats.txt","r");

$html "<tr><td>&nbsp;</td>";
for (
$k 7$k 13$k++) {
        
$html .= "<th>".($k+1998)."</th>";
}
$html .= "<th>2005 -> 2010<br />change</th>";
$html .= "</tr>";

while (
$vals fgetcsv($fh,0,"\t")) {
        
$base $vals[7];
        
$roof $vals[count($vals)-1];

        if (
$base 50 and $roof 50) {
                
$pci sprintf("%.1f%%",100*$roof/$base);
        } else {
                
$pci "-";
        }

        if (! 
preg_match("/^$place\\d/",$vals[2])) continue;

        
$html .= "<tr>";
        
$html .= "<td>$vals[6]</td>";
        for (
$k 7$k count($vals); $k++) {
                
$html .= "<td align=right>".htmlspecialchars($vals[$k])."</td>";
        }
        
$html .= "<td align=right>$pci</td>";
        
$html .= "</tr>";

}

?>
<html>
<head><title>Rail ticket sales trends <?= $place ?> postcodes</title></head>
<body><h1>Rail ticket sales - 2005 to 2010 - <?= $place ?></h1>
<img src=http://www.wellho.net/demo/railtrends.php?place=<?= $place ?>>
<br /><br />
The diagram shows how rail traffic (measured by tickets sold) has grown or
shunk in the five years since 2005 at each of the various stations in a
postcode region - in this case <?= $place ?>.  Figures for 2004-5 are taken
as 100%, and then each of the following years is shown for each station as
a percentage of that figure.<br><br>
Dark blue - over 500,000 entries / exits in 2005<br>
Red - over 50,000 but less that 500,000 entries<br>
Green - over 5,000 but less than 50,000 entries<br>
Pink - over 500 but less than 5,000 entries<br><br>
Here is the raw data:<br /><br />
<table cellpadding=4><?= $html ?></table><br>
Data is for year up to 31st March (e.g. "2010" is 1st April 2009
to 31st March 2010).  Figures are Department for Transport published
figures for total ticket sales for entrances and exits at specific
stations and are subject to the caveats in their reports. The graph excludes
stations with less that 500 entrances / exits (or not open) in the year
to 31st March 2005. Where a percentage is given in the final column, it's
the data for 2010 as a percentage of the 2005 data; we do not calculate /
display the percentage for stations without data or with very few
passengers indeed in either of these two years as it could mislead.<br><br>
<form>Want to see another postcode zone?  Enter initial letters here:
<input name=place size=2> and <input type=submit></form>
</body>
</html>

Learn about this subject
This module and example are covered on our public PHP Techniques course. If you have a group of three or more trainees who need to learn the subject, we can also arrange a private or on site course for you.

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Other Examples
This example comes from our "Maps, Graphics and Geographics" training module. You'll find a description of the topic and some other closely related examples on the "Maps, Graphics and Geographics" 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
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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.

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