HTML template for 4 layer model

Designing PHP-Based Solutions: Best Practice example from a Well House Consultants training course
More on Designing PHP-Based Solutions: Best Practice [link]

This example is described in the following article(s):
• Efficient PHP applications - framework and example - [link]
• Application design in PHP - multiple step processes - [link]

This example references the following resources:
http://www.wellho.net/
http://www.wellho.net/course/phfull.html

Source code: 4lm_template.htp Module: H115

<html>
<head>



<title>Example of a session based PHP application</title></head>
<body bgcolor="#FFFFFF">
<h1>Data Entry - Page %current% of %phases%</h1>
Current operation: <b>%doing%</b><hr />
%errmsg%<br />
%form%
<hr />
%result%
<hr />
<h4>A little about this page</h4>
This is a sample application written in PHP for web use. A typical
web application requires the user to enter data on a series of forms
and presents results based on that series of forms. So a continuity
is required between the pages - data needs to be carried forward and
forms provided in context. But there will be a number of users on your
site at the same time, and only in exceptional circumstances (for
example with multiplayer games or with them bidding against each other)
should the data they are entering be shared.<br /><br />
PHP's sessions provide a built in tool for handling these requirements,
but even using this tool it is very easy to write a piece of logic that's
hard to maintain and includes a great deal of repetition. That's where
the "4 layer model" can come into play - and this page is a demonstration
of the 4 layer model in use.<br /><br />
This example has been put together by <a href=http://www.wellho.net/>Well
House Consultants</a> who provide
<a href=http://www.wellho.net/course/phfull.html>training courses in PHP</a>
to help you learn to make best and effective use of this technology. We
can be reached by email <a href=mailto:info@wellho.net>info@wellho.net</a>
or by phone - a UK number (44 international code) 01225 708225, or freephone
on 0800 043 8225.<br /><br />
</body>
</html>

Learn about this subject

This module and example are covered on the following public courses:
* Deploying LAMP - Linux, Apache, MySQL, Perl/PHP
* Linux Web Server
* Learning to program in PHP
* PHP Programming
* Intermediate PHP - weekend course / hobby / club / leisure users
* PHP Programming
* Learning to program in PHP
Also available on on site courses for larger groups

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Other Examples

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