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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.

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PHP module H313
Page Application and Service Layer
Exercises, examples and other material relating to training module H313. This module is presented on Private Courses and Specially Run Courses only

Articles and tips on this subjectupdated
4059Curl and curling from PHP
The Curl library collects a resource in a non-interactive way from a service... libcurl is a free and easy-to-use client-side URL transfer library, supporting DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, Telnet and TFTP. libcurl ...
4055Using web services to access you data - JSON and RESTful services
Rather than build database access directly into your application, you can write much more portable and maintainable code using a service / web service in which you embed the database access - or whatever else you're using for your backend data. Web services are typically accessed through HTTP or HTTPS ...
4053 Frameworks - learning through exploring and understanding data sources
When a newcomer joins a team that's been working on an existing large project for years, (s)he often finds that so much work has been done, and such extra layers of abstraction added on top of the basic tools, that it's very difficult to get into the project. The problem is often compounded by development ...
Background information
Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from [here].
Topics covered in this module
Separation of the data layer from the presentation layer.
In order to keep the data apart from the display and update logic, major web applications are often written using a page presentation layer of code which then accesses services behind that code. The services will use XML, JSON, CSV or another data format to feen the page presentation layer, which may itself be further dividied into router - model - view - controller elemenst. Database access (if required) will often be within the service layer, thus ensuring that the presentatin layer isn't dependent on any one particular technology / database, and giving cache and scalability improvements.
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Well House Consultants specialise in training courses in Ruby, Lua, Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.

We have a technical library of over 700 books on the subjects on which we teach. These books are available for reference at our training centre.

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