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2631 - How to show a large result set page by page in PHP
One of the major requirements on dynamic web pages is for them to present selected results from a data set. If the results will nicely fit on one page, that's good - but if there are too many for a single page they should be offered page by page, with links to move forward and back, and to the beg ....

2630 - Static variables and ampersands in PHP
If you call a function within your program, the last thing you usually want is to have the debris from a previous call left over and effecting how it runs. The fact that you previously looked for a florist in Melksham should not effect your search for a brewer in Devizes, and asking for the averag ....

2629 - Curly braces within double quoted strings in PHP
In PHP, you can include a variable name within a double quoted string and the variable will be expanded as the string is used - this means that double quotes are actually an operator, whereas single quotes mean a string literal. You can also put curly braces around a variable name to say, explicit ....

2628 - An example of an injection attack using Javascript
Delegates sometimes ask me what an "injection attack" is, and for examples. I came across a really good example this morning on (oops!) one of our own pages - it's now fixed, but I'm documenting here and showing you what was happening so that you can learn from it. Visiting one of the most popular ....

2627 - Saturdays out from Melksham - to Oxford, to Didcot or to Swindon
Fancy a day out with the family from Melksham to Oxford, to Swindon or to Didcot? We took a train trip on Saturday to Oxford from Melksham Station ... three adults and one dog - total return fare to Oxford £24.15. The train left Melksham station (free parking) at 09:18. We bought our tick ....

2626 - On Malachite Green
"Malachite" - Copper Carbonate. But know to me as a rather rich, bright, exotic green colour that's so bright and rich it's rarely seen. I moved to the south east of London in 1959, at a very young age - with no car for our day to day family life (and that was no great hardship), we used the south ....

2625 - Both feet on the same pavement
Wednesday Morning 08:30, February, Moorgate, London. I'm fascinated by some people who feel that the rules don't apply to them. The guy I just had to walk past, bathed in a cloud of smoke of the almost-enclosed lobby with its clear "it is illegal to smoke here" signs, the young lady using her pers ....

2624 - Skyline and looking up in London
For those readers who feel I have a one track (Ruby) mind this week - here are a couple of pictures. This first taken out of the bedroom of the hotel I was in Sunday through Tuesday evenings (I've move on elsewhere in London now to my next job and the outlook is suburban by comparison. London has ....

2623 - Object Oriented Ruby - new examples
We had an "object oriented Ruby" morning on today's course. "But everything's an object in Ruby" you'll tell me and you're sort of right (we could argue about what symbols and code blocks are), but there are certain elements of object orientation which require specific coverage. Here are links to t ....

2622 - Handling unusual and error conditions - exceptions
"I can't answer that question in the way you expect" ... that's something that may be said to you occasionally - you ask someone what suit a playing card is that they're holding and they cannot tell you because it is a joker, or you ask what number is written on a piece of paper when the paper is bl ....

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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 © 2014, 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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