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1736 - Current visitors from around the world - PHP
Would you like to draw a map showing you where your visitors are coming from - all around the world? Something like this: Last 15 minutes - visitors to www.wellho.net I've being doing that through PHP, using the GD graphics module - source code available here if you want to do the same thing on ....

1735 - Finding words and work boundaries (MySQL, Perl, PHP)
If you're searching for the word "mile", you probably don't want the page that tells you that Sally Smiled at Harry. But you may want to find a Milestone, even if it is within quotes. Regular Expressions are your friends! In Perl style regular expressions (which also work in Python, and in PHP wit ....

1734 - All around the world?
Can you guess what the following have in common? Oregon, United StatesBeijing, ChinaMadhya Pradesh, IndiaWestern, Sri LankaKorea, Republic ofZuid-Holland, Netherlands Gauteng, South AfricaBrazilRegion Metropolitana, ChileVictoria, AustraliaMakkah, Saudi ArabiaDubai, United Arab EmiratesT'ai-pei, Ta ....

1733 - memcached - overview, installation, example of use in PHP
Let's say you have a large database on a busy server, and queries that are eating into your resources. Would you like to be able to speed things up? It usually turns out that there are certain queries which are very frequent and which return the same results each time (or for a period of time) whic ....

1732 - Old pictures and comparisons
I've always found it very interesting to compare pictures taken at the same location a period apart, but in the glut of 2008 pictures anything from (say) 1908 gets swamped. However - here are two I took the weekend before last - the first being of a history board at the station showing the scene as ....

1731 - Apache httpd, MySQL, PHP - installation procedure
If you're installing LAMP (Linux, Apache, MySQL, PHP), what do you do and in which order? Here's a summary of the procedure we followed on todays Apache httpd deployment course - in this case running (tailored) for a single company audience, and tailored for specfic needs. (I've documented this a ....

1730 - Punting on the Cam
I've been giving a Perl course in Cambridge this week and last night, driven out of my hotel room by the heat, I walked down to the river, bought myself an ice cream, and watched the couples, the tourists, and the punters go by. You'll find bicycles everywhere in Cambridge they say. And until yest ....

1729 - Back from the future
It's good to take a strategic look ahead from time to time - not a look at the immediate tactics of the next step or two along the way, but a look far into the future, and see where we will be in many years time. A good friend of mine (a Doctor) who is something of a Timelord has downloaded the fo ....

1728 - A short Perl example
#!/usr/bin/perl -pa $_ = "$F[0] $F[-2]\n"; What does that Perl code do? Although it's very short, it's also somewhat obscure, and my delegates yesterday were not at all sure that they would wish to be given code like this to maintain ... but then they admitted that they have seen things like this ....

1727 - Equality and looks like tests - Perl
Whenever you do an equality check in a Perl program, you must think whether you're checking if two numbers are equal, if two test strings are equal, or if a string looks like a pattern. And you write different code in each case: Checking numbers: If ($stuff == 6) { ... Tests whether $stuff contai ....

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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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