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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.
Setting up strings in PHP

Inside, the web is all about passing around and manipulating strings of text - so the programming langauges of the web such as PHP have to be really strong in their string handling facilities. I give you two new examples from last week's course ... easy lessons that form the bedrock on which the powerful stuff is built:

An (almost) literal string - what you see is what you get:
  $literal = 'This is a string with $things and \t things in it!';

A string with variable interpollation and \ escaped special sequences:
  $interp = "This is a string with $things and \t things in it!";

A string which is run as an operating system command, and the result is returned to you:
  $ranit = `uptime`;

As well as using the single characters shown above, PHP supports a "here document format where the delimiter is any unique word / set of characters that will appear to terminate on a line of its own.
  $terms = <<< LONG
  This is available subject to the laws of Papua New Guinea as they
  were in 1847, together with royal approval from King Zog of
  Albania when eating $things.
  LONG;


See how that runs [here]. Full source code [here]
(written 2013-04-27)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
H107 - String Handling in PHP
  [31] Here documents - (2004-08-28)
  [54] PHP and natural sorting - (2004-09-19)
  [337] the array returned by preg_match_all - (2005-06-06)
  [422] PHP Magic Quotes - (2005-08-22)
  [463] Splitting the difference - (2005-10-13)
  [493] Running a Perl script within a PHP page - (2005-11-12)
  [558] Converting between acres and hectares - (2006-01-08)
  [560] The fencepost problem - (2006-01-10)
  [574] PHP - dividing a string up into pieces - (2006-01-23)
  [589] Robust PHP user inputs - (2006-02-03)
  [608] Don't expose your regular expressions - (2006-02-15)
  [642] How similar are two words - (2006-03-11)
  [716] Evaluating arithmetic expressions in configuration files - (2006-05-10)
  [728] Looking ahead and behind in a Regular Expression - (2006-05-22)
  [1008] Date conversion - PHP - (2006-12-26)
  [1058] PHP Regular expression to extrtact link and text - (2007-01-31)
  [1195] Regular Express Primer - (2007-05-20)
  [1336] Ignore case in Regular Expression - (2007-09-08)
  [1372] A taster PHP expression ... - (2007-09-30)
  [1533] Short and sweet and sticky - PHP form input - (2008-02-06)
  [1603] Do not SHOUT and do not whisper - (2008-04-06)
  [1613] Regular expression for 6 digits OR 25 digits - (2008-04-16)
  [1799] Regular Expressions in PHP - (2008-09-16)
  [2046] Finding variations on a surname - (2009-02-17)
  [2165] Making Regular Expressions easy to read and maintain - (2009-05-10)
  [2238] Handling nasty characters - Perl, PHP, Python, Tcl, Lua - (2009-06-14)
  [2629] Curly braces within double quoted strings in PHP - (2010-02-09)
  [3020] Handling (expanding) tabs in PHP - (2010-10-29)
  [3424] Divide 10000 by 17. Do you get 588.235294117647, 588.24 or 588? - Ruby and PHP - (2011-09-08)
  [3515] PHP - moving from ereg to preg for regular expressions - (2011-11-11)
  [3516] Regular Expression modifiers in PHP - summary table - (2011-11-12)
  [3534] Learning to program in PHP - Regular Expression and Associative Array examples - (2011-12-01)
  [3788] Getting more than a yes / no answer from a regular expression pattern match - (2012-06-30)
  [3789] More than just matching with a regular expression in PHP - (2012-06-30)
  [3790] Solution looking for a problem? Lookahead and Lookbehind - (2012-06-30)
  [4072] Splitting the difference with PHP - (2013-04-27)


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Passing variable between PHP pages - hidden fields, cookies and sessions
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Horse's mouth home
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Splitting the difference with PHP
Some other Articles
Further recent PHP examples
A comment on comments in PHP
Learning about Object Orientation in PHP - a new set of examples
Setting up strings in PHP
Passing variable between PHP pages - hidden fields, cookies and sessions
Even early on, separate out your program from your HTML!
Arrays in PHP - contain different and even mixed data types
The woman, the television, the bullock and Darlington
MVC and Frameworks - a lesson from first principles in PHP
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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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