Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
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.
Carrying a long URL around - looking for memorable shorts

Are you sometime envious of nice, short URLs - you want to pass on a really short URL to someone, but the structure of your site is such that the resource in question has some long string associated with it - it has to carry a lot af "context" around with it ...

There are services such as tinyurl available - or if you want more control, you can write your own. You could, for example, map
  http://www.wellho.net/short/3
onto
  http://www.wellho.net/resources/globalindex.html

How?

1. Use Apache mod_rewrite to map all URLs in the short directory to a PHP script:
  RewriteRule ^(.*)$ index.html?shortform=$1&%{QUERY_STRING} [L]

2. Use that PHP script to perform the mapping - in this example, I have my mappings in a file but there's no reason I shouldn't use a database:

$forward = file("forward.txt");
if (preg_match('/^(\d+)/',$_REQUEST[shortform],$gotten)) {
  if ($gotten[1] >= 0 and $gotten[1] < count($forward)) {
    $fn = trim($forward[$gotten[1]]);
    header("Location: http://www.wellho.net".$fn);
    exit();
    }
  }


You'll note that my use of a location header causes the browser to direct.

3. Highly Recommended. Tell your robots.txt file that you do not want search engines to index the short page names; if it was index, you would be diluting your search engine placement.
  Disallow: /short/



(written 2010-05-17)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A607 - Web Application Deployment - Apache httpd mod_rewrite
  [631] Apache httpd to Tomcat - jk v proxy - (2006-03-03)
  [755] Using different URLs to navigate around a single script - (2006-06-11)
  [934] Clustering, load balancing, mod_rewrite and mod_proxy - (2006-11-21)
  [1006] Apache httpd and Apache Tomcat together tips - (2006-12-24)
  [1009] Passing GET parameters through Apache mod_rewrite - (2006-12-27)
  [1207] Simple but effective use of mod_rewrite (Apache httpd) - (2007-05-27)
  [1376] Choosing between mod_proxy and mod_rewrite - (2007-10-02)
  [1381] Using a MySQL database to control mod_rewrite via PHP - (2007-10-06)
  [1636] What to do if the Home Page is missing - (2008-05-08)
  [1731] Apache httpd, MySQL, PHP - installation procedure - (2008-08-01)
  [1771] More HowTo diagrams - MySQL, Tomcat and Java - (2008-08-24)
  [1778] Pointing all the web pages in a directory at a database - (2008-08-30)
  [1954] mod_rewrite for newcomers - (2008-12-20)
  [2094] If you have a spelling mistake in your URL / page name - (2009-03-21)
  [2555] Bookkeeping - (2009-12-29)
  [2728] Redirecting a home page using mod_rewrite - (2010-04-17)
  [2773] Dynamically watching your web site via a PHP wrapper - (2010-05-21)
  [2900] Redirecting a page - silent, temporary or permanent? - (2010-08-03)
  [2981] How to set up short and meaningfull alternative URLs - (2010-10-02)
  [3197] Finding and diverting image requests from rogue domains - (2011-03-08)
  [3339] Simplest ever proxy configuration? - (2011-06-28)
  [3568] Telling which ServerAlias your visitor used - useful during merging domains - (2012-01-04)
  [3753] Adding a passcode to a directory - (2012-06-05)
  [3862] Forwarding a whole domain, except for a few directories - Apache http server - (2012-09-17)


Back to
Back from a Python course in Glasgow
Previous and next
or
Horse's mouth home
Forward to
Easy - but for whom?
Some other Articles
Graham Ellis - Summary of Training Record
Melksham to Calne by public transport
Melksham Chamber of Commerce - Presidents report to AGM
Easy - but for whom?
Carrying a long URL around - looking for memorable shorts
Back from a Python course in Glasgow
Optional and named parameters to Python functions/methods
Running operating system commands from your Python program
Python decorators - your own, staticmethod and classmethod
Our C and C++ training course are on Open Source platforms
4759 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per page


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.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2021: 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/2768_Car ... horts.html • PAGE BUILT: Sun Oct 11 16:07:41 2020 • BUILD SYSTEM: JelliaJamb