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For 2023 - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
What does an browser understand? What does an HTML document contain?

What would I expect a browser to understand?

• HTML (To describe how the page is marked up)
• Images - .jpg .gif .png (Photos, diagrams, etc)
• Style Sheets - .css (To set the look and feel)

and probably (but progressively less likely:

• JavaScript (for local helpers such as form validation)
• Flash (Dynamic graphics)
• ActiveX Components (For running code within a sandbox)
• Java Applets (for running code in a restricted area)

What would I expect to find in a file of HTML?

• HTML (Instructions for browser text layout)
• Style (How particular tagged types are to be rendered)
• PHP (Code to be run on the server)
• JavaScript (For running on the browser)
• MySQL (For the PHP to use to access the database)
• English (For the web site visitor to read)

* The PHP and MySQL will only be present in the HTML if you're applying a filter such as PHP to the code

and I would HOPE to find comments in the code / file to tell me how it all works.

I see the top of my first 'board' says "KISS". Although I've described what the user's browser is likely to accept, that's not to say that all user's browsers will accept all possibilities of HTML, Javascript and CSS. In fact with so many different browser types, written by so many different authors, each with their own idea of the specification and extensions we say Keep It Simple, Stupid!
(written 2008-09-15)

Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
W601 - Structure of Networks and Webs
  [2246] What difference does using the XHTML standard really make? - (2009-06-18)

A211 - Web Application Design and Deployment
  [23] Skills and responsibilities - (2004-08-22)
  [356] Sudoku helper or sudoku cheat - (2005-06-23)
  [443] Server side scripting of styles to suit the browser - (2005-09-12)
  [659] Web Application Components - (2006-03-28)
  [767] Finding the language preference of a web site visitor - (2006-06-18)
  [1198] From Web to Web 2 - (2007-05-21)
  [1256] What country are you in? How we find out on our web site - (2007-07-03)
  [1351] Compressing web pages sent out from server. Is it worth it? - (2007-09-14)
  [1545] Letting new visitors know we provide training courses - (2008-02-19)
  [1547] New bathing idea for hotels from Hotelympia - (2008-02-20)
  [2072] Copyright, Portability and other nontechnical web site issues - (2009-03-09)
  [3532] Sharing the user experience - designing a form with the customer in mind - (2011-11-29)

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Regular Expressions in PHP
Some other Articles
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Will your backups work if you have to restore them?
Spiders Web
Regular Expressions in PHP
What does an browser understand? What does an HTML document contain?
I have been working hard but I do not expect you noticed
libwww-perl and Indy Library in your server logs?
What have iTime, honeytrapagency and domain listing center got in common?
Refactoring - a PHP demo becomes a production page
Which country does a search engine think you are located in?
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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