Training, Open Source Programming Languages

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Our email: info@wellho.net • Phone: 01144 1225 708225

 
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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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))
PHP data sources - other web servers, large data flows, and the client (browser)

As always, I've written a sprinkling of new demonstrations amongst some well-trodden example during the PHP course I'm presenting this week:

There's a really short example of how you can call up another server from your own server - [here]. So much more can be made of the web by presenting and combining resources from many different sources - rather than just data off you own machine. We do it "for real" by collecting the current weather from the BBC to include in our travel to Melksham page, and by collecting data about train running from railway sources for the graphic in the top left corner of our First Great Western Passenger Forum.

I've extracted data from the large flows I'm generating from the server work I was doing last week - a good example of some of the low level PHP string handling functions [here] (and you can see the incoming data to that [here].

Finally, there are a few golden nuggets that you can get from the user's request that will help you tailor the page you send back to him - things like finding out where he's visiting your site from, and what language he prefers to read the response in. The sample program is [here].


Run the page with user's browser information [here]
Run the page that looks at another server [here]
Run the page that extracts from a log fil [here]

(written 2010-11-04)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
H307 - PHP - Web2 and caching
  [1633] Changing a screen saver from a web page (PHP, Perl, OSX) - (2008-05-06)
  [1647] Exchange Rates - PHP with your prices in your users currency - (2008-05-19)
  [1733] memcached - overview, installation, example of use in PHP - (2008-08-02)
  [1812] Starting Ajax - easy example of browser calling up server data - (2008-09-27)
  [1813] Ajax - going Asyncronous and what it means - (2008-09-28)
  [1814] Javascript/HTML example, dynamic server monitor - (2008-09-28)
  [1926] Flash (client) to PHP (server) - example - (2008-12-06)
  [1995] Automated server heartbeat and health check - (2009-01-16)
  [2196] New Example - cacheing results in PHP for faster loading - (2009-05-24)
  [2321] Uploading and Downloading files - changing names (Perl and PHP) - (2009-08-04)
  [2545] Scraping content for your own page via PHP - (2009-12-21)
  [3094] Setting your user_agent in PHP - telling back servers who you are - (2010-12-18)
  [3186] How to add a customised twitter feed to your site - (2011-02-27)
  [3458] On this day ... one PHP script with three uses - (2011-09-26)
  [3955] Building up from a small PHP setup to an enterprise one - (2012-12-16)
  [3999] Handling failures / absences of your backend server nicely - (2013-02-08)
  [4055] Using web services to access you data - JSON and RESTful services - (2013-03-29)
  [4075] Further recent PHP examples - (2013-04-28)
  [4106] Web server efficiency - saving repetition through caches - (2013-05-30)
  [4136] How do I post automatically from a PHP script to my Twitter account? - (2013-07-10)
  [4627] Caching results in an object for efficiency - avoiding re-calculation - (2016-01-20)

H109 - PHP - Input / Output
  [114] Relative or absolute milkman - (2004-11-10)
  [616] printf - a flawed but useful function - (2006-02-22)
  [653] Easy feed! - (2006-03-21)
  [709] Handling huge data files in PHP - (2006-05-04)
  [997] Most recent file in a directory - PHP - (2006-12-18)
  [1094] PHP fread - truncated data - (2007-02-27)
  [1096] Sample script - FTP to get a file from within PHP - (2007-03-01)
  [1113] File and URL reading in PHP - (2007-03-20)
  [1442] Reading a file multiple times - file pointers - (2007-11-23)
  [1780] Server overloading - turns out to be feof in PHP - (2008-09-01)
  [2964] An introduction to file handling in programs - buffering, standard in and out, and file handles - (2010-09-21)
  [3159] Returning multiple values from a function call in various languages - a comparison - (2011-02-06)
  [3424] Divide 10000 by 17. Do you get 588.235294117647, 588.24 or 588? - Ruby and PHP - (2011-09-08)
  [4483] Moving from mysql to mysqli - simple worked example - (2015-05-03)


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Coincidence, or Conspiracy - a wrong email address
Get all your ducks in a row ... and they may turn into swans
Liquorice allsorts and Dolly Mixtures
PHP data sources - other web servers, large data flows, and the client (browser)
VAT rise in January - it is really up 14% not just 2.5%
Server logs - drawing a graph of gathered data
Coding efficiency - do not repeat yourself!
Learning to Program ... in PHP. Course examples.
Testing the new pavement ready for Christmas
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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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