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Simon Holywell by Simon Holywell is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License.
Based on a work at www.simonholywell.com.
PHP
Memcached and APC: Two Simple Techniques to Speed up your PHP Web Application
Memcached and APC are two tools that you can install on your server and gain almost instant gratification! APC basically caches executions that you send to a PHP process so that the next time you ask the parser to run your script it only has to look for some pre-chewed opcode in memory rather than parsing your PHP [...]
Installing APC and Memcached for PHP Sessions on Ubuntu and Debian
Installing APC on Debian or Ubuntu is as simple as:
user@server:/directory/$ sudo apt-get install php-apc
Now let us reboot the Apache process to enable our new cache:
user@server:/directory/$ sudo /etc/init.d/apache2 restart
APC should now be ready to run on your server. Try running the following command to verify it is setup; you should get something in response like mine:
user@server:/directory/$ php -r ‘phpinfo();’ | grep [...]
Installing APC and Memcached for PHP Sessions on Redhat
Installing APC on Redhat is as simple as:
[user@server directory]# yum install php-pecl-apc
APC should now be ready to run on your server. Try running the following command to verify it is setup; you should get something in response like mine:
[user@server directory]# php -r ‘phpinfo();’ | grep ‘apc’
apc
MMAP File Mask => /tmp/apc.s5jA6w
apc.cache_by_default => On => On
apc.coredump_unmap [...]
Agavi Release Candidate 1
A bit slow off the mark with this one but Agavi 1RC1 has been released and it is of course looking very nice. The 1.0 feature set is complete and potential bug fixes are the only things standing between now and 1.0 in earnest. Features that I am particularly interested in include the recent [...]
Agavi 1.0 Beta on XAMPP 1.7.0
To install the new XAMPP ensure you firstly uninstall and remove your current XAMPP folder. Upgrades are not supported with this version due to the differences one of which is the removal of PHP4 support from the XAMPP package.
I like to install agavi via the pear package that is available:
Open a command prompt and navigate to [...]
Freelancers: Costing your work
Recently I have been a fly-on-the-wall in an interesting discussion on the Auckland PHP User Group regarding the process of costing freelance work. So I thought I would toss my hat in the ring and give my opinion and summarise the interesting aspects.
Let me just say now that I cannot tell you how much you [...]
SQL Server 2005 Dump to SQL statements
Say you have a development environment setup using SQL Server 2005 Express Edition and your customer has a SQL Server 2000 database accessible only via ODBC and you can only run a DB import via a script. How would you do it? Easy you might think just run msdbdump.exe on the command line, well this isn’t MySQL so you are not so fortunate.
Geographic Calculations in PHP
Recently I have been involved with a project that maps yachts during an ocean race, which got me thinking about basic calculations and conversions that would be useful to fellow developers. I envisage this being useful in projects leveraging Google or Yahoo maps. For the moment the class performs the following functions:
Calculate the distance [...]
Flickering Images
I have been asked numerous times in the past how I create this effect in some forum signatures so now I am releasing the code so you can see. It could equally be used as a background image in CSS (like the photo of the excavator above) so you could have a circulating series [...]
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