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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.
Case Sensitive?

PHP variable names are case sensitive, but the names of functions are case insensitive. Why is this?

PHP is a language that's designed to let you write a web page template into which you can insert additional tags to call up the functionality of PHP, and it originated in the days before xhtml when tags were case insensitive. So it's natural for those additional tags to be case insensitive too.

However, following on from other Open Source / Linux / Unix projects, for the most part PHP is case sensitive - a sensible approach as it avoids the loss by folding of 26 ASCII characters in your coding scheme. Also a sensible approach as those of us who use PHP and Perl and Python and other languages appreciate a certain amount of consistency.


It's very easy in PHP to write a piece of code that looks like a "dog's dinner" with a mixture of tags, code, SQL, English all in one file. Following a presentation last week on good PHP practice that I attended, I've written an extra example for our own courses and placed it in our solutions centre - you can see it on this site and learn more about it on our PHP Programming course too.

As an overview ..... split your PHP application into 4 files:

  1. A Top level that provides the URL for the visitor
  2. The page template
  3. Presentation helper logic
  4. The business logic


You can run the sample in our PHP demo directory
(written 2004-10-19, updated 2006-06-05)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
H101 - Introduction to PHP
  [48] PHP - onwards and upwards - (2004-09-14)
  [55] Evening classes to learn PHP - (2004-09-19)
  [124] PHP v Java - (2004-11-20)
  [132] Portrait of the author - (2004-11-27)
  [135] Too many Perls - (2004-11-30)
  [317] Programming languages - a comparison - (2005-05-20)
  [341] Happy Birthday, PHP - (2005-06-09)
  [380] Bridging to the customer requirement - (2005-07-16)
  [382] Central London Courses - Perl, PHP, Python, Tcl, MySQL - (2005-07-18)
  [433] FTP - how to make the right transfers - (2005-09-01)
  [577] Learning to program in Perl or PHP - (2006-01-26)
  [624] It's REALLY easy to add a little PHP - (2006-02-26)
  [629] Choosing the right language - (2006-03-01)
  [646] PHP - London course, Melksham Course, Evening course - (2006-03-14)
  [691] Testing you Perl / PHP / MySQL / Tcl knowledge - (2006-04-19)
  [712] Why reinvent the wheel - (2006-05-06)
  [789] Hot answers in PHP - (2006-07-02)
  [795] Remember a site's non-technical issues too - (2006-07-07)
  [846] Is Perl being replaced by PHP and Python? - (2006-08-27)
  [917] Syntax checking in PHP - (2006-11-07)
  [924] The LAMP Cookbook - Linux, Apache, MySQL, PHP / Perl - (2006-11-13)
  [949] Sludge off the mountain, and Python and PHP - (2006-11-27)
  [1050] The HTML++ Metalanguage - (2007-01-22)
  [1198] From Web to Web 2 - (2007-05-21)
  [1717] Q - Should I use Perl or Python? - (2008-07-23)
  [1753] Perl v PHP, choosing the right language - (2008-08-14)
  [1958] PHP - Parse error: syntax error, unexpected $end ... - (2008-12-23)
  [2097] PHP Course - for hobby / club / charity users. - (2009-03-22)
  [3025] Learning to Program ... in PHP. Course examples. - (2010-11-01)
  [4118] We not only teach PHP and Python - we teach good PHP and Python Practice! - (2013-06-18)
  [4621] The power of scripting - (2016-01-12)


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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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