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Author Archives: Veronica Yuill
jQuery validation plugin: required select elements
I’m just posting this as a reminder to myself, but it may help others! I found that when I added class=”required” to a select element in a form, it wasn’t actually treated as required by jQuery. After some fiddling about, … Continue reading
Automatically updating a WordPress blogroll
Years ago, I signed up to a social bookmarking system called Spurl. I’m really not interested in social bookmarking, but it had a handy feature: by inserting a bit of Javascript in a web page, you could pull all or … Continue reading
Book review: PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide, 4th Edition by Larry Ullman
I bought PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide (4th Edition) to use as a set book for an online intermediate PHP class that I teach. I previously used Web Database Applications with PHP & MySQL by … Continue reading
Accessing virtual hosts across a LAN
Like many web developers, I have a local Apache/MySQL/PHP setup for developing sites. To ensure maximum compatibility with live servers, I set up a virtual host for each site. That way I know all paths will work. For example, on … Continue reading
More nifty SQL: insert if not exists
Quite often you want to insert a record into a table, but only if it doesn’t already exist. OK, you could first do a SELECT query to check for existence, and then do the insert, but it’s clumsy and raises … Continue reading
ADODB database abstraction library for PHP
I’ve been using this library for years to make my database interface code database-independent, but I am still discovering new useful functions. Case in point: today I was using the handy rs2csv function, which outputs a recordset to a CSV … Continue reading
Preventing hotlinking of images
Using an .htaccess file to prevent people stealing bandwidth by linking directly to your images from another website is a popular and well-known technique. I needed to do this, but decided to take it a step further with a little … Continue reading
Who knew Javascript could be fun?
It gave me migraines till I discovered jQuery. Now I can validate a form with some simple CSS and a couple of lines of jQuery code. And today I had a rather odd requirement to toggle the colour of cells … Continue reading
PHP: is it a leap year?
I’ve written about date manipulation in PHP before. There are some truly horrible hacks out there. Today I needed to detect whether a given year was a leap year, in order to write future-proof code for a calendar. PHP has … Continue reading
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Amarok and network shares on the eee PC
The eee now spends most of its time being used as a convenient way to play music through the stereo. This means it needs to mount the shared directory on the server downstairs that contains all the music. This caused … Continue reading