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For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
control example - showing need for functions and includes
Functions example from a Well House Consultants training course
More on Functions [link]

This example is described in the following article(s):
   • Coding efficiency - do not repeat yourself! - [link]

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

Source code: bmi1.php Module: H105
<html>
<head><title>BMI / loop demo</title></head>
<body>
<h1>Height to weight ... loop demo</h1>
<table border=1 cellpadding=5>
<tr><th>Height</th><th>Weight</th><th>BMI</th></tr>
<?php

$tall 
1.9;

for (
$weigh 40$weigh <= 110$weigh $weigh 5) {
        
$bmi $weigh $tall $tall;
        
$c "green";
        if (
$bmi 25 or $bmi <20$c "yellow";
        if (
$bmi 30$c "red";
        print (
"<tr>".
                
sprintf("<td bgcolor=green>%.2f</td>",$tall).
                
sprintf("<td bgcolor=green>%.2f</td>",$weigh).
                
sprintf("<td bgcolor=$c>%.2f</td>",$bmi).
                
"</tr>");
        }
?>
</table>
<i>The BMI (Body to Mass index) maybe taken as an approximate measure that a
person is of the right build.  It's calculated by dividing the weight of the
person in kgs by their height in metres squared - thus a 100 kg person who
is 2 metres tall has a BMI of 100 / (2 x 2) = 25.   A BMI of under 20 is
commonly regarded as being underweight and a BMI over 25 is overweight; once
a BMI of over 30 is calculated, it may be an indication of a serious problem
with obesity, but you should only take that as a general indicator and
always consult a qualified doctor for specific information / advise with
regard to any individual or group of individuals.</i>
</body>
</html>

Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in PHP
 * PHP Programming
 * Object Oriented Programming in PHP
 * Beginning PHP - weekend course / hobby / club / leisure users
 * PHP Programming
 * Learning to program in PHP
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 "Functions" training module. You'll find a description of the topic and some other closely related examples on the "Functions" module index page.

Full description of the source code
The complete training module that describes this source code is availble for download (for limited use) from our download centre.

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.

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.

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

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