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.
Web page to telephone calls / links using an iPhone
Would you like people who visit your web site from their iPhone you be able to just click on your number and call you? Well - they can; the iPhone Safari browser recognized phone numbers and turns them into telephone links. But you might want a bit more control as the web site author ...
• To add a link that phones you, where the link is NOT a phone number, you can use a link of the form:
• To suppress a link from a phone number, I have found that putting a start and end span tag in the middle does the trick:
0800 0<span></span>43 8225
• To link to a different number that the one shown on your page, simply add your own link around the number:
<a href="tel:+44-1225-708225">01225 708225</a>
This is potentially open to abuse (eg. offer a freephone number but link to a similar number that costs), but my example is a sensible one as it lets me display my number as expected by my UK customers, but then converts it so that the link will work internationally (worldwide) if someone follows it from overseas.
protocol isn't supported by all browsers, though, and if you want to avoid offering links that do strange things when selected on your computer (as opposed to your phone), you'll need to recognise the browser and only provide the links where it's appropriate.
Here's a simple example of how you might to this (in PHP):
• Recongise if the phone is an iPhone:
<?php $iphone = preg_match("/iPhone/",$_SERVER[HTTP_USER_AGENT]); ?>
• And if it is an iPhone, send an extra link:
<?php if ($iphone) print ('<a href="tel:+44-1225-708225">'); ?>
then add in the link content such as an image, then:
<?php if ($iphone) print ("</a>"); ?>
I like to provide a "try it here" page with all my Blogs, but it this case I don't think I will - Lisa would be really happy with me if she got a lot of "just testing" phone calls ...
|Do you have Flash in your web page? And do you want your application to work well on the iPhone? The default iPhone browser does not support Flash ... there are various ways to get an iPhone to render Flash ... but rather than put your potential customer to the trouble, why not use the PHP above and send out an alternative?|
however, on the Well House Consultants home page
and on the Well House Manor Home page
, clicking on the big text than announces our name will offer you a call to us. Please use it if you would like to book a weekend away, or a course ;-)
|If you're not familiar with PHP, have a look at our courses - we offer a variety of curricula, depending on your background and on what you want to be able to do with the language.|
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articlesH306 - PHP - Who is your visitor? 
Current visitors from around the world - PHP - (2008-08-04) 
What features does this visitors browser support? (PHP) - (2009-04-22) 
World Flags in your PHP pages - (2009-08-10) 
Object Oriented programming - a practical design example - (2009-08-27) 
Setting your user_agent in PHP - telling back servers who you are - (2010-12-18) 
Moving from a warning system to a control system - PHP, forum spammers - (2012-12-07)G913 - Well House Consultants - Hardware and Devices 
Hostnames spring forward - (2006-03-02) 
Latercomer to the technology - (2007-07-29) 
What a shock - (2008-10-08) 
Load Balancing - Hardware or Software? - (2009-01-15) 
Huawei D100 Wireless Router - Mobile Internet - (2009-02-10) 
Effect on server when memory runs out and swapping starts - (2009-02-26) 
Camera to record where a picture was taken - (2009-05-18) 
MacBook Air - hardware and system review - (2010-11-17) 
Change of balance, of attitude, and of work method - (2010-11-30) 
Away to train - but still around by video for Melksham meetings - (2011-09-25) 
Want to learn iPad and iPhone programming? Come along and learn with me for free. - (2012-01-28) 
Setting up your MacBook Air as a mobile broadband router - (2013-07-07)
Some other Articles
Melksham - Carnival, Party in the Park, and Spot the OddityPointers to Pointers to Pointers - what is the point?Efficient use of dynamic memory - C and reallocIs it worth it?Web page to telephone calls / links using an iPhoneRandom thoughts on Melksham Town Planning and developmentEarly Spring walk in MelkshamOliver Cromwell at Bristol Temple MeadsImprove your PHP on a weekend awayIs Melksham public transport actually used?
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This is a page archived from The Horse's Mouth at
the diary and writings of Graham Ellis.
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