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340 - Code and code maintainance efficiency
Three maxims of coding and system development; I'm reminded of these this week as I run a PHP course which is heavily biased towards good coding standards / writing robust and maintainable web sites, but they apply to other languages / coding systems too! "If you find yourself repeating something, ....

339 - Passing information into and out of PHP functions
In PHP, named blocks of code are referred to as "functions". By default, variables within functions are created each time the function is run, and do not conflict with any other similarly named functions elsewhere in your code. That's good news for coders of medium sized and larger applications, ....

338 - OO techniques are hard to teach
Spam from my inbox a few minutes ago ... "OOD (object-oriented design) is a topic that is notoriously difficult to teach because the design priciples are so abstract. Fortunately, we, [[name or organisation deleted ]] (a non-profit organization funded by the Macau government), have found a way to te ....

337 - the array returned by preg_match_all
PHP supports two regular expression handlers - the "ereg" series that uses POSIX style regular expressions, and the "preg" series that uses Perl style. Why? Because both have their uses - the POSIX style makes for easier-to-read expressions and are said to be easier to learn, and the Perl style is ....

336 - Targetted Advertising
Who? Me?? Charlie (the cat) sends her best wishes to all of the trainees that she's met on Well House Consultants courses and looks forward to meeting you again in the future. She's particularly keen to tell you about the new C Programming and C++ Programming courses that we're running as from Augu ....

335 - Sad priorities
I was just watching the gentleman who was the US's ambassador to Ethiopia from 1996 to 1999 on the TV. He was saying that we shouldn't expect the USA to fund any new plans for poverty relief in Africa that are proposed at the forthcoming G8 summit, as the USA is already stretched economically. He ....

334 - Symbolic links and hard links
Files are arranged in directories (or folders if you prefer that term), and each file can be reached through a series of directories and sub-directories from the root - correct? Yes ... BUT ... there are some times that the same file can be reached through several names, and on Unix and Linux syst ....

333 - Do NOT follow links or read attachments in these emails
A word of warning. If you get emails with these subject lines or anything like ... DO NOT click on the embedded links in them. These are what are called "Phishing emails" and are looking to steal your identity by have you enter your name, password and other information on a fake site. Update And V ....

332 - Looking up IP addresses
Browsers, mail clients, ftp and ssh and telnet clients and the rest are for ever converting fully qualified names such as www.sheepbingo.co.uk into IP addresses such as 212.227.118.78. How can you do such a lookup manually? Firstly, there are numerous web sites out there that will help you - I'm ....

331 - 08:45 is a difficult time
Over the past couple of weeks, two of our clocks have stopped at a quarter to nine. Co-incidence? Something macabre? A haunting? Theory - at a quarter to 9, both hands of the clock are on the rise and the battery has to work harder to drive the mechanism and lift them. A scientific conjecture, ....

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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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