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410 - Reading a news or blog feed (RSS) in your PHP page
If you want to quote the latest articles from an RSS (XML based) news feed on your site, is it difficult? No - it can easily be programmed in PHP. I was exploring this yesterday and have the source code showing just how easy it is in our training resources. Want to try it out? This link runs the ....

409 - Functions and commands with dangerous names
There are some words that we use in our day to day programming life that seem a little scarey and inappropriate to their real task ... and sometimes those words worry trainees on our courses. Examples: PHP's reset function. It's name seems to threaten to clear our data from somewhere, but all it ....

408 - Can an older person learn a programming language
"After the age of 55, my company no longer provides training for its staff to help in their career development and day to day work. It considers that by this point in their career, employees are fixed in post and that it's not a good investment to train them further". Well at least that policy was ....

407 - Theft of training material
We write our own training notes and examples ... and there's one heck of an investment in that. We encourage our customers to use the examples we provide in their work, but we do get more that a little upset on those very rare occasions where a customer starts earning his own living from presenting ....

406 - Assignment, equality and identity in PHP
In PHP, you'll find that there's an = operator (that's one = sign), an == operator (that's two equals signs) and an === operator (triple equals). The single = sign is an assignment - it tells PHP to work out the expression to the right of the = sign and save it to the variable / location named on ....

405 - Horse's Mouth is a year old
I've been writing "The Horse's Mouth" for a year! When I started, I wondered if I would find enough to say but I've had rather the reverse as an issue - which 20% to say and which 80% to leave out; occasionally, I've been tempted to post twice in a day but I think that could be too much. It's a ....

404 - How to check that a string contains a number in Tcl
In Tcl, all variables hold strings. If you perform an arithmetic operation such as an expr, an incr or a numeric comparision, the incoming strings are converted into a numbers internally, the calculations are done, and the results are converted back to strings and saved. It might not sound very eff ....

403 - Full circle - made it back to an old haunt
(Dateline - Wednesday, 3rd August 2005) Some 30 years ago, I worked for Tektronix, selling and supporting their range of very high resolution graphics terminals. My territory was the South West of England - "Swindon to Penzance" was how I described it - and my most major customers were the aerospa ....

402 - Netless
Seen a gap in "The Horse's Mouth" for the last couple of days? For the first time in quite a while, I've been offline ... running an onsite course during the day, staying at a hotel without network connectivity and where even my backup mobile phone is out of range overnight. Contract customers a ....

401 - What is an SQL injection attack?
It's where an unauthorised user enters illegal data that gets placed into an SQL command, with the purpose of changing the meaning of that SQL command. For example, you might use the SQL query    SELECT count(id) FROM user where uname = "xxxxxx" and pword = "yyyyy" to validate a use ....

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Have you ever looked back through old magazines for an article which you know you read, but you can't remember which issue it was in? There's a timeless quality to many articles written in newspapers, magazines, and blogs that gives lie to the 'dated' nature of the medium. This page allows you to search through the now-extensive archives of "The Horse's Mouth", looking for certain text in the title.

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This page is from the web site of Well House Consultants who provide Open Source computer training. Program written / developed as a demonstration during a PHP course. The example is in module H113

Training sample © 2024, WELL HOUSE CONSULTANTS LTD
This is http://www.wellho.net/demo/mqclim.php
See source code here • More examples - same topic here
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